Ask any search engine optimizer, and they will tell you how much they are obsessed with SEO plugins. SEO plugins/extensions are inevitable when you need advanced features, historical features, increased limits, or online support. In fact, online marketers are so curious about which plugins do the authoritative names in the SEO industry use, that they eagerly look forward to their posts and other updates to know about the plugins of their choice.
To help the SEO’s in determining the best plugins, which could prove to be time and cost effective, we’ve reached out 101+ of the best Internet marketing minds around the world and asked them one single question, “Which are those 3 SEO Browser Plugins/Extensions you simply can’t work without?”
We’ve collected and made a compilation of the hundred common plugins based on their given feedback. This will prove to be a comprehensive list and guide for SEO plugins.
Below data here shows the top 3 plugins/extensions in our list and how much they are popular with various SEO experts.
Here are my 3:
MultiLinks by GrizzlyApe: This tool is such a time-saver! It’s a browser extension that lets you select a section of a webpage and will then either open each link in that section, or copy them to the Clipboard so you can easily paste URL and anchor text information into an Excel spreadsheet. It’s a key part of my link prospecting efforts.
PageSpeed Insights: This plugin (which requires you to be running Firebug) returns suggestions for items on an individual page or pages to increase page load time. Notnofollow only is it a great diagnostic tool, but the explanations about what’s happening are detailed enough to provide right to the dev team for them to get working on.
I know you are looking for 3 browser extensions/plugins that I can’t live without, but I only need 1. The main extension I use from a marketing perspective is Moz. It tells me all about a website, and within seconds I can get enough information about the site to figure out what they are doing right or wrong.
My favorite part about the extension is how it can highlight nofllowed and followed links. When you are link building this is important because you don’t want to waste your time hitting up sites that will only link to you using a nofollow link.
Awesome Screenshot: Capture & Annotate is brilliant for capturing screen shots of web pages. Unlike many others, it works great for long-copy pages too.
Boomerang for Gmail helps you by adding a few buttons to the Gmail interface. The most useful of these says, in effect, “Notify me if I don’t hear back within N days.” So, whenever you send an email, you can tell Boomerang to notify you if the person doesn’t reply within a certain time frame.
Our consultants use Diigo to share bookmarks with each other. To be good at conversion rate optimization, you need a vast knowledge of effective techniques, so we’re always bookmarking good examples. Every few days we receive an email from Diigo summarizing what we’ve all bookmarked.
Ghostery tells you which tracking, testing and analytics tools are being used on a website. It’s useful to know if your competitors and role models are testing the effectiveness of their website.
Evernote Web Clipper allows you to save things you see on the web into your Evernote account. Our consultants share loads of content using Evernote. It also uses optical character recognition, so your swipes are searchable.
Jing is great for sharing screenshots and video captures with developers. It captures the content, allows you to annotate it, uploads it to a server, and then gives you a URL which you can easily paste into a Basecamp to-do. All of this is possible manually, but Jing makes it much quicker, so you end up using it much more often. Skitch has similar functionality.
Screenhero allows you to screenshare instantly with other members of your team. Each of you has a cursor, so you can easily collaborate on documents.
Here we go:
If I look at my browser, Chrome (even though I still use Firefox for certain things), I see quite many plugins and extensions installed, not all of them strictly “SEO” ones.
In that category I can cite the Mozbar, which I use all the time not just for quickly analyzing a site, but also for checking the SERPs thanks to its SERP Overlay feature, which allows you to create as many profiles you may need. For someone like me doing a lot of International SEO, that’s surely helpful.
Others I use are the YSlow and the HTTP Headers extensions.
A fourth, but it is not just for SEO, is the Buffer extension, which is synched with my Followerwonk account.
Most of the plug-ins I used to use were primarily SEO rank check toolbars and link analytics like pagerank and nofollow, etc. Over the last few years SEO rankings have become much more fluid and personalized, and link building tactics have evolved considerably to the point now where I no longer use the browser plug-in SEO tools. The Toolbars/Plug-ins that I use these days are more for diagnosing technical issues with the website, like Firebug and HttpFox to figure out what’s causing a page to load so slowly, or Proxy Selector to get through firewalls, etc.
My top plugins would probably be:
Ayima redirect checker – this is awesome for showing HTTP response codes quickly and showing chains of redirects. Really useful for quickly spotting problems whilst browsing websites.
Web developer toolbar – this is great for doing technical audits because I can easily turn CSS / JS on and off, disable cookies, view image attributes, it’s just really versatile and lets me find problems easily.
Majestic SEO plugin – I love how quick the Majestic SEO plugin is. Within a few seconds I can get a snapshot of the links pointing at the page I’m on as well as metrics for the root domain.
I technically am not really an SEO (my day job is to write code and write content) so I don’t use any of the common search plugins. But, if I WERE to use one, I’d use the Moz toolbar.
our SEO toolbar https://tools.seobook.com/seo-toolbar/ & rank checker https://tools.seobook.com/firefox/rank-checker/
a password utility like https://agilebits.com/onepassword or https://www.roboform.com/
In all honesty, I only use one browser plugin, and I can’t live without it: Roboform. It makes my days much more efficient by storing all my passwords securely, and automatically filling them in when I want to login somewhere. I love it!
I prefer using the Firefox browser for speed, security and versatility.
Apps I make use of copiously are Seoquake and the UserAgent extension and iMacros for FF.
Seoquake is, of course, indispensable for any SEO who wants to learn more about a page’s or a site’s performance in the SERPs than the search engines will let on out of their own accord. This helps analyse weak spots and fortes and gauge an SEO campaign’s traction.
Switching your UserAgent is very useful in various scenarios, especially when you’re actually hammering the SERPs for a slush of data. (Of course, to that avail it’s necessary to daisywheel your IP across a slew of anonymous proxies as well.)
Finally, iMacros helps reduce the tediousness of repetitive browser based tasks. While it does sport a certain learning curve to master, it’s immensely versatile and useful.
Sure, here goes:
My favorite SEO Browser Plugins and why are:
WooRank Chrome extension: a superb plugin to quickly review technical, on-page and off-page SEO of a web page. Gives an impressive amount of details for a free extension. Love it!
Moz Bar: My team uses mozbar for evaluating sites link authority, this tool is particularly useful for link development. Although it does review and gives you a lot of additional information we use it mostly for link reviewing.
Firebug lite (chrome): a great tool for technical SEOs, allows you to review the code of a web page easily.
I primarily work in Google Chrome. My top three favorite extensions are MozBar, SEO Site Tools, and Rapportive. I’m sure everyone knows what Moz does, so I won’t go into that. SEO Site Tools allows you to see a lot of data for the page you are viewing including PageRank, Majestic SEO, SEMRush, page elements, social sharing stats, server info, and optimization suggestions. Rapportive works with Gmail to show you information about the people you are emailing including their location, job title, and social links if applicable. This can help you get a little more personal with your outreach and lead to better results.
Which are those 3 SEO Browser Plugins/Extensions you simply can’t work without?
My three favorite ones at the moment are:
I especially find useful the SERP and Page Overlay functionality for On Page and Competition Analysis, great to save time identifying the popularity of the page and domain, as well as the usage of title, meta description, robots, canonical, tags, links per page, etc.
This extension is a must to easily validate the site behaviour using different user agents and to perform Mobile SEO audits.
It’s great to check overall the SEO characteristics not only from the page but also from the website, some of the ones I find more useful are domain age, mobile visualization, IP location and the technology used on the site.
SearchStatus because it gives me an instant access to lots of tools (via right-click on the icon)
Live HTTP headers because it visualizes all the redirects and potential issues while I am browsing
Get URLs from Search Results Plugin Tool: The easiest way to extract actual URLs from Google and Bing search results
The three plugins I love are:
Ayima Redirect Path: (https://chrome.google.com/webstore/detail/redirect-path/aomidfkchockcldhbkggjokdkkebmdll?hl=en) – Great for quickly checking status codes of any page.
Majestic SEO Backlink Analyser: https://chrome.google.com/webstore/detail/majestic-seo-backlink-ana/pnmjaflneibolacpepklokkjnakmikmg?hl=en: Quickly check the link profile of a site without leaving the page.
Evernote: (https://chrome.google.com/webstore/detail/evernote-web-clipper/pioclpoplcdbaefihamjohnefbikjilc?hl=en): Every day I see things that inspire me that I don’t want to lose, so Evernote helps me quickly save and categorise them so I always have design ideas or examples of great content to use in the future.
Happy to contribute!
While we have an amazingly handy in-house browser plugin that I’ve come to rely on, I do heavily rely on SEOQuake more than anything but I use it for a fairly specific main purpose, and that is verifying Toolbar PageRank. Even though I’m not a huge fan of that metric, it matters to clients so I use SEOQuake to check it. I also use it to check Whois data. Secondly, I use the Moz Toolbar when I’m in Firefox only, but that’s mainly because I try not to overload any one browser with too much.
Moz is useful for showing some metrics that are a good alternative to PageRank. The last big one I use is the Evernote plugin, which lets me add info to Evernote which is truly my favorite and most useful tool ever. Having something that makes it easy to slap a clip or a whole page into a note is awesome and I use it to clip articles that I want to read, interesting designs, etc.
Here’s my answer:
I don’t use a lot of chrome (or other browser) extensions these days, although there are 3 that I believe I can’t live without:
SEOQuake – which I heavily use in link prospecting
MozBar – same thing, but it’s also very useful for competitive content analysis
Stumbleupon extension – I use it to get more ideas for content development/promotion (even from industries not related to SEO).
I only use two SEO toolbars: SEOBook and the MozBar. I also work with the product team here at Moz to add feature improvements to the MozBar, so I’m biased.
The Chrome extensions I use that I couldn’t live without are:
Ayima’s Redirect Checker
Check My Links
Tag Assistant by Google
Linkclump (to grab lists of links from a page easily to put into Excel)
The non-SEO ones I use the most are:
Lastpass (keeps all my passwords within my browser so I don’t have to remember them)
Buffer (for social media scheduling across accounts)
My three must-have plugins are the Mozbar, Web Developer Toolbar, and BuiltWith. The Mozbar gives me all the data I need to do research on a particular page, and it separates out page characteristics, like the page title and description, which is nice for screenshots. The Web Developer Toolbar is my main go-to tool for technical issues. And the BuiltWith plugin lets me know all of the technologies a site is using.
I’m having trouble choosing three plugins for WordPress because there are a lot of useful ones out there. but I will tell you about 2 that I like to use. I really like the Yoast WordPress SEO plugin, which provides a lot of features that help make WordPress even more SEO friendly than it already is. The T3 Total Cache plugin addresses a lot of site speed and performance issues in a truly helpful manner as well. There are a lot of social sharing plugins that are worth exploring as well, and I’d definitely recommend experimenting with those to see which ones people might prefer using, so that they can make it easier for visitors to share what they discover on a site.
I use one extension and two bookmarklets regularly:
Liam Delahunty’s PageLinks bookmarklet (great for list building when doing content promotion/link building).
BuzzStream’s buzzmarker (to add contacts to our company BuzzStream account)
Here are the three extensions I can’t live without:
SEOBook SEO Toolbar: I love the “at a glance” metrics that is shows. I can instantly see the PageRank and referring domains from Majestic SEO. And with a few more clicks I can see whether the site is listed in DMOZ and check it’s whois info.
Check My Links: A must-have plugin for all broken link building fanatics out there. Faster and more accurate than all the rest.
MozBar: I love their SERP overlay feature for getting a quick and dirty look at the competition for a particular keyword.
1. Majestic SEO Backlink Analyser – quickly pull in the MajesticSEO metrics and backlinks of any page.
2. Ayima Redirect Checker – checking the path of the links on a page can be valuable. You can use it in two quick ways when link building. Firstly check whether bloggers are sneakily changing your links to pass through 302 redirects and secondly you can use it to point out potential issues on a site to a link prospect.
3. Check My Links – I like to do a little bit of broken link building within my campaigns. Sometimes I’ll fire across an email to point out the broken link and ask for it to be swapped out for one of my own, but most of the time I will use the opportunity to start the conversation.
My three would be Firebug, Web Developer, and META SEO Inspector.
Firebugis like Chrome’s Inspect Element, but I like it for the ability to highlight content around a page. Plus if you do work where you need a mock, the edit ability lets you make visual changes on the fly. Super useful when recommending page changes. I’ve been using Web Developer as long as I can remember, to kill CSS and scripts, see the real guts of the site, view responsive, and highlight elements. META SEO Inspector is cool too – toggle on a few quick details about the site, or dig deeper with shortcuts to a bunch of analysis and domain tools.
Evernote web clipper
ShareMetric – our social share count add-on for Chrome. I use this a couple times a day while reviewing client/competitor content and anything else I’m reading.
CheckMyLinks – Still my go-to for broken link detection on the page I’m viewing.
The answer’s really dependant on what task I’m doing but in terms of what I use most day to day for analysing sites then it would be the Firebug plugin and the MozBar and SEOBook toolbars.
I use Firebug a lot for checking markup and site code, the MozBar’s really handy for quickly checking DA and follow/nofollow links, and SEOBooks handy for Toolbar PR, previews and direct links to all the main backlink tools and inbuilt tools like rankcheck and SEO XRay.
If I’m planning outreach then Buzzstream’s Buzzmarker is really useful.
1. MozBar – Firefox/Chrome
I’ve come to rely on this extension for a lot of reasons, firstly it gives me everything I need to know about a page.
Right from all the usual meta data to the canonicals, Google cache URL and link data.
The SERP overlays for domain and page metrics come in really handy too when I’m link prospecting.
2. Scraper for Chrome
I really don’t know what I did before I used this extension, it’s become an essential part of my SEO toolbox.
Generally speaking, when you right hand click on a link on a page then select ‘scrape’ it will pull out a list of URL’s.
You can use it to scrape search results for link prospecting or scrape lists of websites – this really is essential for anyone sourcing websites for outreach.
3. SEO Book toolbar for Firefox
I’ve been a reader of the SEO Book blog for a long time now but the best thing they ever did was release this extension.
It gives you all sorts of link metrics, Page Rank, Compete.com metrics, SEMRush metrics along with a bunch of other tools that make it a great time saver.
I just hope that one day this will be released for Google Chrome as it’s only available on Firefox right now.
This add-on is the only reason I still use Firefox.
I utilise a combination of browser extensions to assist in day-to-day site analysis routines, so narrowing the list down to just three is somewhat difficult. In my opinion there are various browser extensions applicable depending on the task in hand, i.e. the extensions required for on-page analysis will differ to extensions which provide insight into link analysis, each with their own set of pros and cons; therefore it is always best to utilise a broad range of extensions to suit your particular needs.
If I had to pick three I would suggest:
1. Web Developer for Firefox
2. Mozbar for Chrome & Firefox
3. SEO Site Tools – for Chrome
These three are probably my most used tools on a day-to-day basis; however other extensions such as Firebug, User Agent Switcher, Search Status and Redirect Path are just some of the extremely useful tools available which assist in various forms of analysis. Therefore my advice would always be to ensure you have a broad range of tools to suit the needs of the task in hand.
Here are my 3 favorites…
SEOQuake: so many search parameters available on the fly, this one is an absolute must!
Rank Checker: open source and hosted on your comp, this is great to quickly check your progress.
SERP Trends: love the visual element of this tool, great for seeing how you’ve risen/fallen in the rankings.
For us here at Silicon Beach, our essential plugins/extensions would be:
· Bitly: The best URL shortener/bookmarker out there; a must-have that complements all our social/content activity
· Google Analytics URL Builder: Ideal for tracking campaigns across multiple platforms easily and intelligently
· Alexa: A useful SEO all-rounder tool for a quick insight into key metrics – by no means comprehensive but perfect for on-the-spot reviews
Couldn’t live without it. Boomerang is a great way to keep on top of tasks I’ve delegated to team members or contractors, link building outreach, and even sales leads. I probably use the “Return Conversation to Inbox” feature more than anything else, which returns an email back to your inbox after a set period of time – it also includes the option to only return the message if nobody replies.
Occasionally I work late to catch up, but prospects might get a little freaked out if they see replies coming to them at 3am. “Send Later” makes it easy to schedule email delivery for the following morning. I also use it to send link building strategy posts to my team. I usually catch up on blogs once a week and find a ton that I like, but I found that most people prefer to have helpful posts sent to them one at a time, so instead of overwhelming them with too much, I’ll schedule a few “you should read” this posts over the next several days.
Person Buzzmarker in Buzzstream
If you use Buzzstream as your link building CRM you are probably familiar with the standard Buzzmarker. It’s a bookmarklet that automatically grabs website data to import into Buzzstream such as the domain name and domain-level contact information.
The Person Buzzmarker goes one step further to add a Person and Website into Buzzstream in one step. For whatever reason, there is not much demand for this tool so it is not available in the default setup, but if you contact Buzzstream support they will hook you up with it – we have found it invaluable.
We just started using Chromcast to stream video to TV screens. Works great for Netflix, Hulu, and Distilled’s video training
3 Browser Plug-ins I can’t work without are:
DA in my opinion is the currency checker of link builders and to check the DA of a website you have to have Moz Bar installed. There are other uses of it as well but this is the most common one!
Broken Link Checker
You should have this plugin installed and this is because it can quickly show you where there is an opportunity of link availableJ.
When you have several social media accounts to manage you will realize the importance of this browser extension and what wonders it can do within $10 a month.
“The first browser plugin that I couldn’t live without would definitely have to be the Majestic SEO Backlink Analyser. This tool is what I always use to get a quick snapshot of the Trust Flow/Citation Flow of a website and can save me a lot of analysis time.
The second is the Buffer App. Funnily enough, I only started using Buffer recently and it’s now became a part of my routine. I try and read a LOT of content each day, so the Buffer chrome extension is a God-send for helping me share this across my various social media profiles – plus the link up between my Google+ business pages is a bonus!
Finally, I couldn’t live without the Scrape Similar chrome extension – this is just an amazing little tool that I use for all kinds of tasks. It’s especially good when it comes to link prospecting because it enables you to scrape a load of the SERPs and format all the information nicely into a spreadsheet.”
The answer’s really dependant on what task I’m doing but in terms of what I use most day to day for analysing sites then it would be the Firebug plugin and the MozBar and SEOB.
Because of this, I use just one (good) SEO Browser Plugin, which is the SEO Toolbar by Moz: it’s simple and it gives you almost everything you need.”
SeoQuake SEO extension – This plugin simply makes it easy for me to spot page rank and other quality information while I’m doing general searches through Google or when I’m really digging into sites to see what and where they rank for.
SEOmoz MozBar – This is another excellent tool for anyone to add to their toolbar. With a quick glimpse, you will get Page Authority, MozRank, Domain Authority and the number of links associated with a site.
Redirect Path – Being in the affiliate marketing space, it’s always important to know what links are going where. With Redirect Path I can insert any url and see all of the different redirect URLs associated with the URL.
I use two browser plugins – the SEO Status Pagerank/Alexa Toolbar and theMoz Toolbar. I use the first one to check out what Google has to say about a particular page. Then, I use Moz to get some additional information that isn’t completely Google-dependent. I rely on these tools mainly for checking out websites where I’m thinking about publishing a guest post. That way, I can focus my efforts on the most authoritative sites. (Of course, I also go through the content on those potentials, too, to make sure that I’m comfortable having one of my articles published alongside of it!
I will have to choose the following:
1) Mozbar – This has to be the number one extension. Considering the amount of reconsideration requests I have completed lately (all of which for new clients who recently moved from their previous agency), the ability to have instant access to seeing which links are ‘Follow/NoFollow’ is a must have. Plus it has many other great uses.
2) Web Developer (https://chrome.google.com/webstore/detail/web-developer/bfbameneiokkgbdmiekhjnmfkcnldhhm) – Provides a wealth of developer tools within the Chrome toolbar. It will allow you to manipulate a web page in countless ways. From providing link details, outline headings and alt attributes and much more… An extension that finds a use for a large variety of tasks.
3) Grab Y’all Links (https://chrome.google.com/webstore/detail/grab-yall-links/ajjloplcjllkammemhenacfjcccockde?hl=en) – Saves time and allows you to quickly compile a list of URL’s.
1. SEObook toolbar for Firefox – simply because it has the shortcuts to most of the tools we like to use when assessing the value of a page.
2. Raventools for Chrome – We use Raven for our link building campaigns and obviously this is the easiest way to store the data we need.
3. SEOquake – This really helps filtering through the noise when we go hunting for links in the Serps.
Moz toolbar and PageRank Status Chrome SEO Toolbar
I don’t use a lot of browser plugins for SEO. The top one I use is the Rich Snippets Testing Tool bookmark from BlindFiveYearOld.com. I also use the Raven Internet Marketing Tools extension for Chrome. I also sometimes use MajesticSEO for Chrome as well.
The MozBar for the ease of viewing page elements without having to view the source. The magnifying glass button would be worn out by now if it were a tangible button! Page elements like titles, metas, etc with character counts, page attributes like canonical tag and load time, as well as linking information are all within easy reach.
User Agent Switcher is another I use often. Whether you’re working with mobile/desktop sites or responsive sites, it’s always handy to have a user agent switcher to simulate the various types of sessions. The one I use is by Chris Pederick and can be expanded to include additional devices and crawlers by uploading XML files containing them.
Finally, I depend on a lot of bookmarklets in order to save time doing fairly rudimentary tasks. I know technically these aren’t plugins or extensions, but they live up in the browser bar too so they count. They’re much more lightweight than extensions, but are just as useful. For example when on any given page, I can: do a Google site search, view the cached version, run it through the Rich Snippet testing tool, view the inbound links in Ahrefs and more, all with the click of a button.
Here are three browsers addon which I usually work with:
Buffer app browser extension: This helps me to quickly add shareable content on my social networking sites like Twitter and Google plus pages. This ensure that I don’t post too many updates in short time, and my social profile don’t become a ghost house.
Readability addon: Useful while reading or stumbling articles on web. Provide a clean and distraction free layout while reading.
Pocket addon : Pocket is one of those app which I use on daily basis, as it helps me to add articles for later read. More over, I have integrated it with IFTTT, which automate the process of social media sharing.
Check my links: A useful SEO addon for chrome, which will quickly let you find dead link on any web page. This is very handy for link-building. If you find any dead link on any webpage related to your niche, you can either write a post on that topic, or if you have written one on same topic, Mail the editor about the dead link, and give him a working link from your blog. It’s a great way to build a high-quality link for free.
There are many more which I use for ex: WiseStamp, SEO Quake but these are some which I use on daily basis.
I always have several extensions running whether I’m working or at home – keeps me on my toes.
Mozbar will be one of them – find it most useful for quickly skimming over search engine results and seeing what their domain authority etc is, giving an immediate impression of what the competition for that industry might be.
SEO for Chrome is another extension I find useful for a broad overview of a website’s authority including basics like PageRank. I also have it set to highlight nofollow links which is always useful.
Another one I use quite a lot is Check My Links – quickly identifies whether any links on a web page are broken.
Website and SEO Analysis – To get the overall temperature of the site
Mozbar – For a quick deep dive on site structure and SEO
WhoWorks.At – To quickly find contact info of the people behind the site
My top 3 browser plugins are as follows:
SEO for Firefox by SEOBook – https://tools.seobook.com/seo-toolbar/
Great all around SEO toolbar that incorporates everything that you could really need when doing anything SEO related.
Multi Links – https://addons.mozilla.org/en-us/firefox/addon/multi-links/
This little tool has saved me countless hours over the course of my SEO career. Whether you’re doing competitor backlinks analysis and want to open multiple links at the same time, or want to rip multiple links and paste them elsewhere (Scrapebox etc) it’s a real timesaver!
Check My Links – https://chrome.google.com/webstore/detail/check-my-links/ojkcdipcgfaekbeaelaapakgnjflfglf
Perfect for broken link building and getting your foot in the door when you need to speak to webmasters that may otherwise ignore your e-mails.
The top 3 browser/toolbar plugins I use are as follow.
1. SEOBook Toolbar
2. SEOmoz Toolbar
The first 2 toolbars I believe will be covered to death in this blog post so i’ll focus primarily on ‘Firebug’. Firebug is a web developer tool that allows you to see the code behind the website. It even allows you the opportunity to edit the code to see what happens if you were to ‘tweek’ something. For me, if their is an element of a website I really enjoy I might want to play with the code a little bit. If I can get it to work the way I envision I might be able to use it on one of my websites. Strictly from an SEO value its also nice to hover over links if you don’t have a no-follow plugin enabled and to see if any flash or other non-friendly SEO technology is being used on the website.
SEOQuake – a tool with a multitude of uses.
Mozbar – for a quick overview of site trust and equity
Canonical Inspector – https://chrome.google.com/webstore/detail/canonical-inspector/bkhmmnobkapfphodlomnkhdoeopceiki
The tools I use really depends on the type of outreach I’m doing and what I’m trying to accomplish, but I’d say the 3 browser tools I use the most are:
Firebug – Great for taking quick glances at code, especially if you’re not proficient at coding. For example, there’s a great feature that let’s you mouse over a section of a webpage and it shows where the code is written for that section of the site. I’ve found this to be especially helpful when training people.
Similar Web – Similar Web shows pages that are similar to the one you’re on with a simple click. This is another one I found to be helpful with newer SEO’s. They always seem to get tunneled in and rely heavily on Google for finding new webpages. I’m not sure if it’s the easy 1 click button, but this one is always easy to get new hires to adopt to.
SEO Site Tools – This one might be a little old school, but SEO Site Tools shows quick data on the website your on. There’s a ticker over the icon that shows the PR of the page your on. I know PR carries little weight nowadays, but it’s nice to have a quick idea of where a site’s at. Deeper into the tool you also get valuable data like, quick look at html tags, number of social mentions, and whois info. It will also show a suggested email contact for the page, which is helpful when an email isn’t easy to spot.
The 3 Best SEO browser plugins/extensions:
Moz Toolbar: Love the instant knowledge of page and domain authority.
SEO Quake: Having PR, site age, whois information, and the number of inbound links all in one place is very handy.
PageSpeed Insights: SEO is all about UX, so knowing what’s slowing my pages down is awesome.
I have a long list of extensions that get added to Chrome on a fresh install, but I’m going to share 3 extensions that add very specific but very useful technical information that have saved countless hours.
Canonical – https://chrome.google.com/webstore/detail/canonical/dcckfeohihhlbeobohobibjbdobjbhbo
If the URL of the page you’re visiting doesn’t match the rel=”canonical” tag, the Canonical plugin will alert you with an icon in the address bar. Clicking the icon takes you through to the canonical version of the page. It’s great to verify canonical tags are functioning as designed, and can help identify indexation issues.
NoFollow – https://chrome.google.com/webstore/detail/nofollow/dfogidghaigoomjdeacndafapdijmiid
The NoFollow plugin highlights links that have a rel=”nofollow” tag, but more importantly it alerts you when the page you’re visiting has a meta robots noindex or nofollow tag. Again, great for identifying indexation issues. Unfortunately more often than not it tells me when clients have accidentally enabled the privacy settings in WordPress.
Redirect Path – https://chrome.google.com/webstore/detail/redirect-path/aomidfkchockcldhbkggjokdkkebmdll
Redirect Path shows you the HTTP status for the page you’re on (other than a 200 OK) and any redirects that have taken you to the page. Quick and easy way to check that your pages are returning a 404/410 when they’re supposed to, and you’re not sending search engines down a redirect chain.
I run a ton of plugins and toolbars but if I had to narrow it down to three, the first would be Scraper for Chrome. This is an extremely efficient tool for pulling data from the SERPs making prospecting a much more efficient task. Next up would be the Web Developer toolbar. When I’m doing technical audits or digging into a technical problem, this is a great tool for digging in and understanding what’s going on. Third would be Last Pass and the plugin for Chrome. With different logins for all of the software, such as Moz, Search Metrics, Goto Meeting, and WordPress to name a few, Last Pass helps me keep track of them all securely and in one place so don’t waste time tracking down logins.
Vimium, ayima, and ‘open in SEMRush‘
For us, the challenge is getting more of our SEO traffic to take action. Thus, we’re always testing our website for conversion. The browser plugins that we like are Ghostery, which we use to spy on our clients’ and their competitors. The Edit This Cookie plugin is critical for clearing cookies as we QA tests. And Fireshot does a great job of grabbing the screen so we can record what’s working in our tests.
The three SEO browser extensions I can’t live without are as follows:
Redirect Path by Ayima – This extension is very useful for checking whether a particular page is being redirected via a 301 or 302 which can be very important from an SEO perspective. It also reports 404 and other errors at a glance.
BuiltWith – I often use BuiltWith to get an at-a-glance understanding of the various web development technologies and 3rd party tracking scripts a website is using.
Check My Links – I use this to check the number of active and broken links on any given page. The tool is also useful to count the number of links on a page and can be used to diagnose pages that have excessive links.
SEO Tools for Excel is my another favourite. It is an excellent tool for scraping on page elements (title tag, meta description tag, robots tag, H1 tag, H2 tag, etc.) and speeding up the SEO work.
Another must have tool is off course Screaming Frog SEO Spider. I don’t think there is anyone out there who has once used this tool and doesn’t like it. It is one of the best SEO tools available in the market.
Google Page Speed Insights – a useful one that tracks how well my site performs and gives advice on how to improve it. Very useful when making your site load fast: https://www.howtomakemyblog.com/blogging/speed-blog-page-load-time/
Firebug – Helps a lot to figure out the code, what changes need to be made in the code, how others have done some cool features etc.
MOZ Bar – Great for a nice and quick SEO overview of a site and the different metrics.
I have a variety of plug-ins that I like to use. One of the easiest is the free tool bar from SEO Book. It helps me quickly look at SEO factors on the page including h1 tags, description tags and title tags.I also like to use SEO quake. Third, I use the Web Developer plug in that helps me to quickly check for any coding issues on the site. The most important thing is that I use these in combination and it depends on what I want to find out. There are always new tools coming out so it’s important to find the one that works best for your purposes.
The first browser plugin I use all the time is Bufferapp. Being a full-time writer and guest blogger, sharing every article I write and sharing different articles around the SEO community is incredibly important. I like to do all of my reading in the morning, but I don’t want to share every single article in the morning, so Buffer is a lifesaver.
The second plugin I like to use is the PageRank plugin. It might sound simple and I’m sure there are many other extensions out there, but for a writer who is quickly trying to gauge the authority of a website, I always take a look at the PR first before moving on to other tactics. Lastly, you’ve got to have the Moz Toolbar. If I can’t decide how I feel about a website or I want more information, it’s give me everything I could need (and right there on the SERP if I want it). I don’t use this quickly all the time like the others, but I have to have it near just in case!
MozBar – MozBar allows me to check domain and page authority and links to pages on websites directly within my search results. This helps with when I’m researching rankings for keywords for any new blog posts.
SEOQuake – This tool bar gives me access to great information on individual websites. I can see links from SEMRush, analysis on individual pages, alexa rank, whois information and much more.
RankChecker – A simple tool that allows me to quickly check my rankings on a range of keywords in Google.
Rank Checker – I like using this tool to get PageRank, Alexa and Compete numbers for a site, over a given period of time. In reports I send to my clients quarterly, I use these metrics to compare their homepage to the homepages of their top competitors. This gives me a reference point to determine if there may be correlations between those metrics and their site’s performance. Using this tool makes gathering those metrics a lot easier.
Mozbar – I use this tool daily. I like that it integrates into the browser and search results. I can quickly look at domain and page authority, number of linking root domains, total links and what position a site is ranking on any given page of the search results. This information is invaluable when prospecting for link opportunities.
SEO Site Tool – I’ve only recently discovered and started using this tool, which provides so much information I know I’ve only scratched the surface. It supplies you with on-page and off-page metrics, connects you to other tools like Copyscape and offers helpful suggestions for making improvements to the page. There’s so much to this tool! The only drawback is that it’s only available for Chrome, but Carter Cole told me he is working on a Firefox version.
* When I check my rankings I always use Incognito Mode in Chrome + a VPN / proxy. Incognito Mode gives me a fresh browser each time with no cache and cookies.
* When research mode kicks in … I just hit the explorer bookmarklet (doesn’t count as an extension, it is just a bookmark) and look at 2 important metrics: Referring Domains and Historical Link Velocity. This gives me an instant “feel” of that domain.
* For keyword data I used to go in Adwords and mix their data with my own “feeling” on the keyword.
* I only use a two lightweight extensions(not SEO related): edit this cookie and XML tree for creative site analysis and code beautification.
I treat my browser as a very personal application. I like to keep it clean and light weight. I’ll even confess that I try hard to work without installing addons, preferring to do tasks outside the browser. But, there are a few SEO browser extensions that I reach for in times of desperation and that keep me humble
User Agent Switcher Firefox Addon – I love switching my browser user agent to GoogleBot to bust sites that cloak. Ah, and the rush of energy knowing that I am being seen as GoogleBot is quite empowering.
Live HTTP Headers Firefox Addon – This particularly rocks when you need to see the header information in https sites.
Link Clump for Chrome – It can pull a huge list of URLs from links on a page just by selecting the links.
“There are so many good Browser SEO extensions/addons currently available that is can be overwhelming to choose which one to use. Nonetheless, from several that I use, here are three that I find to be more helpful. Do note that these addons provide information on the fly, hence why I use them quite a bit.
MajesticSEO – One of the features that I like about Majestic’s tool is that you can immediately see the “Trust Flow” and “Citation Flow” score of any web page, in addition to a summarized data that are quite helpful.
MozBar – Another one of my favorites. MozBar gives you important SEO metrics on the fly. Metrics like Domain Authority and Page Authority for every page you visit, quick analysis of links, expose page elements, and more.
WooRank – While the tool has some “paid only” features, the free one does hae a lot to offer. This addon provides a deep SEO analysis of quite a lot of SEO information and metrics.
For my work they would be:
· Ultimate User Agent Switcher
· Style Killer
A discontinued chrome extension which removes CSS but can also highlight headings on pages
· Quick Block
Much simpler than going to settings all the time
· Web Developer
The Swiss army knife J
Functionality is now added to the normal Evernote Web Clipper but this is nicer, cleaner. I often use it as a sort of readability tool too.
I’m not a huge Springpad user (I use Evernote instead) but some stuff goes here – or goes here first and then into Evernote. The clipper does amazing work on sites like Amazon or the IMDB
Faster browser, faster browsing, less memory huge – and 90%+ of flash objects on your daily travels are just ads.
I personally use a combination of SEOquake and Moz toolbar though I don’t give as much weight to one or the other. Toolbars are great to get a good reference of what’s going on with a site and the links behind it but really you should be paying attention to what you’re doing and how you’re building your links. I think too many SEO’s focus on link metrics instead of building amazing products and content for the people using their services. Build amazing and you won’t have to worry about the toolbars as much!
My favorite SEO browser extensions are SEO for Chrome, when I need quick stats on a site; Mozbar, when I want to pull the curtain back on how a page is optimized; and Dakola SEO Analysis Tool, for deep insights that help you know exactly what’s working and what isn’t in on-page SEO.
My 3 favorite SEO Browser Extensions are:
HTTP Fox – Great for a detailed look at what’s going on server-side.
The MozBar – Understand a website’s authority and keyword targeting, without ever leaving the site.
Awesome Screenshot – SEO recommendations are useless if they aren’t implemented. Awesome Screenshot helps SEOs take great screenshots and easily draw on them – so recommendations are clear and compelling to clients and colleagues.
I started using SEO Site Tools years ago and I just stick with it out of loyalty I guess. Then a few months ago I found PageRank Status and that is the one I use most of the time. Honestly, these days most of my time and interest lies with YouTube so I was thrilled when VidIq released their extension a few weeks ago. It’s very comprehensive and shows video tags, social share counts including Facebook, Google+1′s, LinkedIn and StumbleUpon. You can even see a list of Tweets from each YouTube video. Great way to discover new subscribers. Here’s a little video preview I did https://www.youtube.com/watch?v=i0AwGztrinM
“The three plugins I cannot live without are all for broken link building. Here’s what I use and how I use them on my merry quests for links:
SEOquake – First I use quake’s SEO bar to make a quick decision on whether I want a link on someone’s page or not. I make this decision based on if the page has any PR or how many outgoing links it has (which this plugin displays instantly). If things look savvy I’ll give the next plugin a click which is…
Check My Links – This beast quickly runs through all the links on the page to see if there are any 404′s that need replacing. I LOVE broken link building and Check My Links is the perfect tool to make this both efficient and fun. Once I’ve weeded out the broken links I make annotated screenshots of their position on the page using…
Awesome Screenshot – This Chrome plugin may not be classified as a SEO plugin but it’s hugely helpful for creating cool screenshots for email outreach. You can add arrows, text and shapes to point broken links out to the webmaster. Going the extra mile by offering helpful directions to the broken links will earn you brownie points and probably a greater chance of landing a link after you reach out :)”
I don’t use any plugins for SEO. However, I can’t live without Firebug.
The only ONE I do have on is SEOQuake.
The best plugin we have is a bespoke Chrome plugin that queries our internal link database so our outreach team can see if a site is on the blacklist (we have 100k domains on this!) or if we have built a link from this site before. This overlays any conversations other team members might have had with the owner and allows us to see all the different contacts if it’s a really big site. It also shows links in the pipeline so we don’t end up with two people asking for the same thing.
The next best plugin I have is SEOmoz but I don’t use any more.
The 3 browser extensions I can’t work without currently include Mozbar, Google Tag Assistant, and Signals by HubSpot.
Mozbar and Google Tag Assistant allow me quickly analyze critical SEO information without opening a handful of programs. Signals by HubSpot allows me to track email opens and clicks, and when synced to HubSpot, gives me “on-the-go” lead intelligence (a must have if your agency has salespeople).
By no means do these browser extensions replace full versions of their respective tools, but for quick and valuable insight, I’m confident you’ll find these useful.
Well, I have to say my main extension is the Moz Toolbar so that would be the one I could not live without. It’s fast and provides me with most of the data I need when checking out a website. I have tried others, but have removed them all to save my PC performance. I should also mention that I do pay for the professional version, which provides all of the Moz features.
The main three plugins I use on a daily basis would be…
Mozbar – quick access to PA/DA metrics, plus some basic on-site stats. This has helped me catch hacked sites a few times when the outbound link count looked ridiculous.
Check My Links – Super quick and easy checking for broken links. A must if you’re doing any broken link building.
LastPass – I’ve got a *lot* of accounts at various web 2.0 sites, and LastPass lets me organize them by persona, saving me from having to juggle giant spreadsheets of login/password combos.
Wappalyzer (https://wappalyzer.com/) – Amazing little plug in that can tell you the tech behind the site. Great for finding out a client’s CMS, if Google Analytics is in place, comment systems, and much, much more.
Evernote (https://evernote.com) – Great for grabbing just about anything and dumping into your collection of notes during the audit process. When it comes time to assemble everything, it’s all in one place.
Plug-ins to avoid… anything that reports PageRank or any other worthless SEO metric. It’s 2013, folks… get on board the KPI Train.
Search status – it’s really an all in one SEO tool to check PR, get a view of linking domains, and to quickly find WHOIS information
Chrome developer tools – inside chrome if you right click and “inspect element” you will fire up the developer tools. Inside Dev tools you can easy view the markup of the page to make sure everything is semantically correct and drag/drop elements to preview changes, do CSS tweaks, troubleshoot slow load times and a lot more. It’s a must use and I use it every day.
the third would be buffer from bufferapp.com it allows users to queue up social media posts to send out over time and can really help drive auxiliary traffic to your site.
I go pretty light on the browser plugin/extensions, but I’ll run you through what I do use and why. SEO for Chrome is important for me. I spend most of my time writing, maintaining the company blog and handling our social media, but SEO for Chrome is pretty helpful whenever I step out into the broader internetz. Mainly, it has the handy ‘show NoFollow‘ function that I’d be lost without. I’m not in the camp that thinks nofollow links are bad or useless, but it’s very helpful to know all of the exacts of how a site links out and what their policies are. Sometimes it’s hard to get that information out of people, so it’s nice that SEO for Chrome does the work for me.
I also use the Moz toolbar, just like everyone else on the face of the Earth. I usually have the Mozbar itself hidden, but it’s comforting to know it’s just a click away when I need it. When I’m examining or evaluating a page, the tools I use the most are my own eyes and brain, but when I need more information or a second opinion, Moz has my back.
I go pretty light on the extensions, as those are the only two I really use. I really do appreciate them though, and I’m glad they’re around when I need them.
My three favourite SEO plugins have too be Yslow, User Agent Switcher, and SEO for Chrome. The User Agent Switcher is particularly useful, as it prevents having to download lots of browsers or going to cross-browser testing sites. Majestic SEO’s browser plugin is also one I use quite often.
Redirect Path by Ayima
This is a great plugin for finding out if you’ve been redirected on your way to the current page you’re on. With this plugin, I can glance up at it’s toolbar icon and it’ll tell me if I took a redirect to get where I am. It’s super helpful in figuring out if a site has internal links that should be updated or troubleshooting 404 pages that don’t actually return 404 response codes.
Without this plugin, I probably wouldn’t share anything on social media. It makes scheduling out posts so incredibly easy and efficient.
This is how I keep up with all my inbound industry news. I usually have zero time in the office to read blog posts and the like, so I save everything to Pocket. This I can pull up my reading list on my train ride home and catch up on everything. Getting Pocket was a game changer for me.
Awesome screenshot, Colour picker,Web developer
Here are the three extensions I use on a daily basis:
1. Moz toolbar
2. Web developer toolbar
Moz toolbar allows me to quickly view the competition in the SERPs and is now such an integrated part of my Internet browsing behavior, that it’s so much more than a toolbar.
Web Developer toolbar allows me to see web pages the same way search engines do. I can find big wins in seconds using this toolbar that will result in massive increases in organic traffic for clients.
Ghostery lets me identify tag on any given webpage. This is great for quickly diagnosing pages that are missing Google Analytics tracking scripts but Ghostery also lets me see landing pages my competition is testing, which in turn allows me to further optimize my own landing pages and campaigns.
The 3 plugins I can’t live without: Searchstatus (very handy shortcuts to most data I usually need, actually being a loyal user for many years I have even suggested some of the features to the developers at some point); FoxyProxy (for a number of reasons, e.g. checking the SERPs for various locations); Firebug (coding anything without it would have been much more difficult). That said, I really miss a few discontinued Firefox plugins such as Ubiquity and Xpather.
The 3 Extensions / Plugins I can’t live without…
1. Grep It All
This Chrome extension adds keyword data (search volume and CPC) everywhere – in Google Webmaster Tools, Moz, Majestic, Ahrefs, Analytics, UberSuggest and Google Search Results. Always be doing keyword research. Always.
2. Tamper Data
3. SEO Site Tools for Chrome
Here are my top 3:
Mozbar – I use the Mozbar all the time. I use it to get a quick glance at PA/DA for websites I visit. I like the quick option to highlight Followed or NoFollowed links on a page. Also, I like that I can quickly load a page into Open Site Explorer to take a closer look at the backlink profile by clicking on the link metrics. One last must-have feature, is the ability to export search results.
Check My Links – I use this broken link checker all the time. It’s fast and simple. I use it when I’m doing link prospecting or when I’m giving one of my own sites a really click page audit to make sure the links are working properly.
Scrape Similar – I love how easy it is to pull some on-page information into a Google Doc to use later. With just a few clicks, you can scrape URLs for link prospecting or whatever other task you need to do.
Nobody will probably mention this tool since it’s “too simple” but this is my go-to, basic onpage checker. I look at a lot of client sites daily and finding a core way to check sites to easily identify how much work will be needed is a must. It tells me the experience of the owner, how much work has been put in and a quick way to impress by showing him what he lacks.
Check My Links https://chrome.google.com/webstore/detail/check-my-links/ojkcdipcgfaekbeaelaapakgnjflfglf?hl=en-GB
We’re SEO’s and we will always be attached to link building. Check MY Links is a broken link building tool. During link prospecting/research/filtering, click on it and boom.
Majestic SEO https://chrome.google.com/webstore/detail/majestic-seo-backlink-ana/pnmjaflneibolacpepklokkjnakmikmg/reviews?hl=en
Every SEO in the world probably has access to MajesticSEO. This tool just makes it easier without going to their site
The three browser plugins I use pretty frequently are SEO Book, SEO Moz and the SERPs Redux Bookmarklet (if you’re counting bookmarklets) for scraping organic SERP data.
SEO Quake Tool Bar – One of the oldest tool bars on the market, great for a quick top level view of a landing page to pick out key SEO metrics on the fly.
Majestic SEO Tool Bar – Great for quick link metrics for a specific page.
Domain Hunter Plus – Great tool for picking up broken links on web pages from a tool bar point of view: https://domainhunterplus.com/
1. Boomerang for Gmail https://www.boomeranggmail.com/ – I can’t live without this bad boy. It reminds me to follow up with people and lets me schedule when to send emails, such a time saver.
2. Majestic SEO Backlink Analyzer – https://addons.mozilla.org/en-us/firefox/addon/majestic-seo-backlink-addon/ – I picked this over the MozBar and PageRank bar as it provides me with so much detail and all within a couple of clicks. You can see root domain / page level metrics. You can see brief report of backlinks going to the site and the anchor used. This gives me a more accurate understanding of the true value of a site than the MozBar and PageRank bar.
3. LastPass https://lastpass.com/ – I can never remember all my passwords and LastPass is the perfect add-on for managing them for me. It includes auto login, auto filling forms out, secure password creation, access anywhere on multiple devices and they offer a free plan.
I mainly use Chrome so I’ll cite Chrome extensions. My preferred three are:
Redirect Path: This one from Ayima is very useful in my opinion. Often servers send incorrect status codes and you can quickly spot 200s instead of 404s , 302s instead of 301s, as well as redirect chains to be fixed.
Web developer toolbar: it offers a wide range of on-page information (meta tags, outbound links, heading tags, etc) but something I’ve found helpful is disabling cookies when I work on multi-language sites (it’s not unusual to see cookie served content, sigh)
Scraper: this is a huge time saver when you have to get multiple items on a page, or the same item from multiple pages. One click and they are in your spreadsheet, ready to be used. Isn’t it wonderful?
Here’s my response:
SEOquake toolbar: I’ve used SEOquake since I began my career in SEO back in early 2009 – I just can’t part with the dear thing! These days I usually just use it for a quick glimpse of how many pages are indexed in Google and to more quickly access a page’s source code. The Density button still comes in handy to double-check that a website’s copywriter hasn’t overdone it on the keyword density front, too.
Moz toolbar: I use Page/Domain Authority as metrics much more than PageRank these days. It’s also handy to be able to click the “x links from x Root Domains” bit and be taken straight to Open Site Explorer’s data for that page.
Yoast’s Unpersonalized Search plugin: Set to default in my browser, this adds “&pws=0″ to a Google Search URL, removing personalisation (but not localisation unfortunately, which still has to be tweaked manually within Google). But still… extremely handy!
For me it’d have to be the following three:
Ayima redirect path – this is a must have for conducting a site audit without having to fire up a HTTP Response checker. It tells you what redirects you’re going through and any other response codes a website serves you – simple, but brilliant.
SEOquake – An oldie, but a goodie this one, SEO quake gives you a bucket load of useful metrics about a website at a glance as well as no follow marking and even SERP stats.
I would have to say my most used browser plug-ins would be:
PageRank Status: Chrome SEO Toolbar
PageRank Status is compact & doesn’t get in the way. It just makes it easy to get some quick data on a site & see the pr on the fly without having to open anything. I dig Awesome Screenshot because it makes reporting to clients much easier. I use Photoshop all the time but Awesome Screenshot just makes explaining things that are going on to clients so much easier & faster with the ease of use the tool provides. Last but not least, SEOquake. Obviously it gives a ton of great data-points. It really helped me get the feel of what was going on & how much authority a site had when I was first learning SEO. All invaluable extensions for the SEO’s toolbox.
Awesome Screenshot – I am always at need to highlight certain things on websites, search results, and reports and this has been so valuable in helping me grab the shot I want and make edits I need.
ColorZilla – While you might not think this is an SEO tool. We create a lot of “designed content” and matching colors and finding colors from clients sites is key.
MozBar – simple and satisfying for my backlink and authority checking needs.
Social Authority hovercard (https://github.com/petertheyeti/Social-Authority-Hovercard)
Google developer tools!
Here are my top 3 choices:
SEO Site Tools – Nice and simple tool for displaying toolbar pagerank. Also shows moz rank, DMOZ, Alexa, and other information.
Domain Hunter Plus – This is a nifty little plugin for discovering broken links on a page. Besides finding broken links on your own pages, it’s a great tool for doing broken link building. As a bonus, Domain Hunter Plus will tell you if the broken link domain is available to register, if you want to take the extra step of recreating the missing site to get the link.
YSlow – Site speed has a small impact on rankings and a big impact on conversions and user experience. YSlow is a great plugin for identifying all the areas on your site that can be optimized for site speed.
My top 3 browser (Chrome) extensions would be:
Moz – by far and away the most helpful one there is (for obvious reasons).
Page Rank Status – I am a bit of old school SEO and like to have the PR displayed right after I open a page.
Firebug – as part of my job I also look after some aspects of our website developement. And Firebug is invaluable for those quick checks, modifications and finding out bugs in code.
Hope this helps, if you need more content, let me know.
My personal favorite SEO browser plugin/extension is the MozBar for Chrome and Firefox. You can easily use it on the go, and get all the most important metrics while browsing, as well as quick access to other SEO tools. Another stand out in my opinion is the SEO Toolbar for Firefox, which has some amazing features, all in one place. Last but not least is SEO Quake, one of the few good tools that also works on Safari; it provides a plethora of metrics, more than I’ve seen in most SEO browser plugins or extensions.