An In-depth Comparison of 10 SEO Extensions for Chrome 

Search engine optimization (SEO) is the soul of any successful website. But it’s also a lot of work. 

Between optimizing keywords, tracking rankings, and analyzing backlinks, it’s easy to get overwhelmed. 

Thankfully, there are several SEO extensions for Chrome that can help ease this process. Below, we compare these tools to help you find an SEO extension for your SEO requirements. 

What Is an SEO Extension?

An SEO extension is a tool that integrates with your Chrome browser to provide a range of features, such as: 

  • On-page optimization suggestions
  • Keyword research and analysis
  • Competitor analysis
  • Rank tracking
  • Backlink analysis
  • SERP Preview 

SEO comprises several data points. An SEO extension acts as a central hub to access this data in one place. 

Since it works within the browser, you don’t have to switch between multiple tools. Also, most SEO extensions are either free or come at a minimal cost. 

So, they’re a cost-effective approach to SEO in real time. 

A Comparison of 10 SEO Extensions 

Here’s a closer look at popular SEO extensions for Chrome. 

Features SEO MinionSEOquake MozBar GrowthBarSimilarWebKeyword Surfer Mangools SerpstatAhrefWooRank 
Main FunctionalityOn-page SEO and link analysis Backlink analysis and SEO audit SERP analysis and Authority Scores AI content creation and keyword analysis Rank analysis and growth strategy breakdown Keyword analysis SERP and backlink analysis On-page SEO and site analysis Overall SEO analysis SEO analysis and website review 
Price Starts at $6 per month FreeFree; paid plans start at $99 per month $29 per month FreeFree $29 per month $69 per month $99 per month $49 per month 
Browser Compatibility Chrome, Firefox, Edge Firefox, Opera, Chrome Chrome Chrome Chrome Chrome Chrome, Firefox Chrome, Firefox, Opera, Edge Chrome, Firefox Chrome, Firefox 
On-page SEO analysisYesYesYes Yes Yes No Yes Yes Yes Yes 
Export options CSV and PNG formats CSV format CSV format CSV format CSV and graphical format CSV format CSV format CSV format CSV format CSV format 

1. SEO Minion

Starting off strong, SEO Minion is a feature-rich SEO extension created by the founders of Keywords Everywhere. It offers a wealth of information in one easy-to-use interface, including on-page SEO analysis, link information, and more. 


  • On-Page SEO: SEO Minion analyzes the on-page SEO for any web page. It tells you details like meta description, title, meta robots, headings, and images. You can also download image and header data. 
  • Link Data: With SEO Minion, you can check all links on a web page. The tool also individually highlights links, such as follow, no follow, external, internal, UGC, and sponsored links. You can also use it to check broken links, such as 404, no domain, and empty links. SEO Minion also detects the number of redirects and server errors on a web page. 
  • Hreflang Checker:  The hreflang checker displays the language and country code of the web pages. If you’re running a multi-lingual website, this is an essential feature to ensure your pages are correctly targeted. 
  • Structured Data Analysis: SEO Minion also analyzes the structured data on a web page and displays it in a user-friendly format. You can use this to check if your pages have correctly implemented schema markup. 
  • SERP Preview: The SERP Preview feature lets you see how your web page title, meta description, URL, and featured snippet will look in search engine results pages. 
  • SERP Location Checker: You can use this feature to check your website’s ranking in different countries or regions for a specific keyword. 
  • HTML v/s DOM: SEO Minion lets you view both the HTML and DOM code of a web page, making it easier to identify any discrepancies between them. 


SEO Minion is available for Keywords Everywhere users on a Silver, Gold, or Platinum Plan. The Silver plan costs $6 per month, the Gold $25 per month, and the Platinum $80 per month. 

2. SEOquake 

SEOquake is an SEO extension for SERP analysis. You can use it to check multiple SEO parameters for your web pages. 

Its stand-out feature is the ”Diagnosis” feature, which lets you click on any result you see in the SERPs and get actionable tips on how to improve its SEO, both on-page and technical. 


  • Page Parameters: SEOquake shows you the following page parameters for a URL: Google cachedate, Facebook likes, Google PlusOne, source, and Pinterest pin count. 
  • Domain Parameters: The tool tells you the SEMrush Rank for any website. You can also see how many pages of the given domain have been examined by Baidu, Yahoo, Google, and Bing. 
  • Backlink Analysis: SEOquake provides information about the number of backlinks on Google and Baidu for any given web page. 
  • SEO Audit: The SEO extension not only audits the web page you’re on but also provides improvement tips for everything from keyword optimization to XML sitemap configuration. 
  • SEMrush Integration: SEOquake integrates with SEMrush to provide even more SEO-related information, such as the number of pages someone visits per visit and the average visit duration. 


SEOquake is free to use. 

3. MozBar 

MozBar is an SEO extension by Moz. It provides instant metrics while viewing any web page or SERP. 

Since it’s associated with an already popular SEO toolset, MozBar is easily recognized and trusted by many SEO professionals. 


  • Page and Domain Authority: MozBar displays the Page and Domain Authority metrics for any web page or domain based on Moz’s own algorithm. 
  • Spam Score: The spam score for a website predicts the likelihood of the site being penalized or banned by search engines. You can check your site’s spam score to ensure it isn’t being negatively affected by any spammy links. 
  • Custom Searches: You can create custom searches on MozBar by city, region, country, or search engine. 
  • Link Highlighter: Like SEO Minion, MozBar also highlights internal, external, followed, and no-followed links. 
  • Page Overlay: The SEO extension exposes page elements, HTTP status, link metrics, general attributes, and markup for any web page. 


MozBar’s basic features are free to use. But if you want to unlock advanced capabilities, you’ll have to sign up for MozBar Premium. 

Paid plans start from $99 per month. A 30-day free trial is available. 

4. GrowthBar 

GrowthBar is another SEO extension that comes with a number of additional features, such as AI writing, too. Being powered by ChatGPT-4, GrowthBar can help you create high-quality content on autopilot. 


  • Keyword Research: GrowthBar lets you plan your content strategy by providing keyword suggestions and search volume data. It offers more than 7 billion keyword suggestions along with its estimated revenue metrics and difficulty scores. You can also check the keywords your competitors are using. 
  • Backlink Analysis: The backlink checker in GrowthBar lets you identify the top backlinks of any website, along with the referring domains and pages. 
  • Traffic Analysis: You can check monthly organic traffic and monthly traffic value for any website. The tool also highlights top-paid keywords. 
  • Domain Authority: Like MozBar, GrowthBar also displays the Domain Authority of any website. 
  • Keyword Tracking Dashboard: The dashboard helps you track the ranking of specific keywords over time. 


GrowthBar offers a 5-day free trial. After that, it costs $29 per month. 

5. SimilarWeb

SimilarWeb is an SEO tool that lets you analyze your website’s performance and compare it with that of your competitors. Its features range from stock intelligence and customer journey analysis to digital marketing and industry research. 

The tool’s dedicated SEO extension is designed to provide real-time website and page ranks. 


  • Page Rank: You can use SimilarWeb to check a website’s and web page’s rank. The tool also tells you the global rank, category rank, and country rank. 
  • Site Performance: SimilarWeb offers a bird’s eye view of website performance. Some metrics in this analysis include monthly visits, average visit duration, pages per visit, and bounce rate. The data is also available in a graphical format for visual analysis. 
  • Country-Specific Traffic: The SEO extension also shows which countries generate the most traffic for a website. 
  • Growth Strategy: Possibly the most impressive feature of SimilarWeb is that it tracks a website’s growth and conversion strategy. You can see how much traffic the site has gained directly or through search, referrals, social media, email marketing, and display ads. 


SimilarWeb’s extension is free to use. 

6. Keyword Surfer 

Created by Surfer SEO, Keyword Surfer is a free SEO extension for keyword analysis. Unlike other extensions on our list, Keyword Surfer’s functionality is only limited to keyword research for SERPs. 

However, it is a very useful tool for content creators and SEO specialists who want to rank their pages higher. 


  • Keyword Usage: Keyword Surfer shows you keyword usage data for any Google search. 
  • Keyword Parameters: Besides the keyword, the SEO extension also shows its related on-page data, cost per click and volume. 
  • Collections: You can create keyword collections to use in your content later. All you have to do is bookmark the keywords you like and then export them in CSV format. 


Keyword Surfer is completely free to use. 

7. Mangools 

Mangools offers a collection of SEO features, such as keyword analysis, backlink analysis, on-page SEO, and domain strength. It is a paid tool, but it also has a free version with limited features. 


  • SERP Analysis: Mangools provides local SERP data for your search queries. 
  • Keyword Finder: You can find keywords related to your query within the Keyword Finder in Mangools. The tool also shows you keywords for which the SERPs rank. 
  • Backlink Analysis: The SEO extension lets you find backlinks for any website. Mangool’s SiteProfile further lets you analyze the links of web pages. 
  • Link Finding: Mangools highlights the follow/nofollow links on web pages. 


Mangools has a 10-day free trial. After that, it costs $29 per month for the Basic plan. 

8. Serpstat 

Serpstat is a popular all-in-one SEO extension that checks website metrics and on-page SEO. Besides individual web pages, Serpstat also shows you information about the whole domain. 


  • On-page SEO Analysis: Serpstat analyzes multiple SEO metrics, like meta tags, site markup, structured data, site speed, visibility changes, and traffic. 
  • Site Analysis: The tool evaluates how optimized a website is based on the structured data quality, number of images, content quality, meta tags, number of links, site loading speed, and site technical errors. 
  • Backlink Data: Serpstat shows you the following information about backlinks: domain rank, links, top pages, and referring domains. 
  • Keyword CPC: If you want to run paid campaigns for certain keywords, Serpstat shows you the cost per click for those keywords. You can also find which keywords your competitors are ranking for. Then, you can target those keywords for your own ad campaigns. 


Serpstat costs $69 per month in the basic plan. 

9. Ahrefs SEO Toolbar 

Anyone who has ever done any kind of SEO knows about Ahrefs. It’s a renowned SEO tool that’s been around for a long time. 

The Ahrefs SEO Toolbar is a Chrome extension that provides information about page links, structured data, on-page SEO, and more. 


  • On-page SEO: Ahref’s on-page SEO report includes information like word count, meta title, meta description, headers, canonical URL, etc. 
  • Structured Data Analysis: You can check your website’s schema markup through the Ahrefs toolbar. 
  • Broken Link Checker: Ahref lets you find broken links on any web page. These include external, internal, no-follow, and sponsored links. 
  • Country Changer: You can change the country you are searching for to get localized results. 


Ahrefs has a free plan with basic features. For advanced features, you will need to upgrade to their paid plans which start at $99 per month. 

10. WooRank 

WooRank is a website review and SEO analysis extension that analyzes multiple data points, such as structured data, mobile-friendliness, usability, website technologies, backlinks, website traffic, and social media. 


  • SEO Analysis: WooRank analyzes your website’s SEO performance, including on-page and off-page factors. 
  • Mobile-friendliness: Since mobile devices have become the primary way to access websites, WooRank checks your website’s mobile-friendliness. 
  • Backlink Analysis: The SEO extension shows the backlinks to a website from other websites. 
  • Website Traffic: WooRank provides information about the traffic to a website, including the number of visitors and page views. 


The WooRank Pro plan costs $49 per month. A 14-day free trial is available for new users. 


That concludes our comparison of SEO extensions. Each of these extensions offers valuable features and insights to help improve your website’s SEO performance. While some are more specific for certain tasks, others are more widespread in their use cases. 

Now, it’s up to you to decide which one you want to try out. You can take your budget and requirements in account to make this decision. 

Keep in mind that having an SEO extension is not a substitute for SEO specialists. Use these tools to supplement your SEO experts’ work. The duo can help you achieve the best results for your website optimization. 

Happy optimizing!