Smart SEO Highlighter

Tracking since Apr 1, 2026.

Changelog

• Jun 10, 2026
  description

  Developed by Albert Badalyan - an SEO Professional - "Smart SEO highlighter" is the best SEO extension to help you improve your website's quality, readability, and accessibility of your page - no matter if it's a blog post or a landing page.
  
  The extension is 100 FREE!
  
  Smart SEO Highlighter is the 1st and most complete free SEO Chrome extension that combines the functionality of 10+ other popular extensions and helps you:
  
  ✅ Easily check ALL SEO & content issues of the page
  🚀 Check Core Web Vitals (CWV) score directly in extension
  ❌ Check page broken links
  ⏩ Identify Redirections or Redirect Chains
  </> Check Detailed Structured Data (Schema) of any page
  ❇️ Highlight ALL H1-H6 headings 
  📱 View page on mobile (with a single click & no coding knowledge)
  🔍 Check content quality & get handy recommendations
  🔗 See ALL external links 
  🏷️ See ALL no-follow links 
  ⚠️ See ALL external do-follow links, etc.
  
  Unlike other SEO extensions, Smart SEO Highlighter is built to handle modern, dynamic websites (like those using React or Vue) by intelligently waiting for JavaScript-rendered content to load first.
   
  Everything is possible to get with just a single click - without using other complex tools or coding knowledge.
  
  Who is this All-in-One SEO Chrome extension for?
  
  - SEO experts
  - Content writers and editors
  - QA specialists
  - Link building pros
  - Affiliate and partnership managers
  - UX designers
  - Product owners
  - Agencies, tech, and in-house marketing teams 
  - C-level managers
  
  Lightweight, fast, and secure - no data tracking. This is one of the best Chrome extensions that's created to make your SEO strategy, webpage, and content more efficient and valuable, thus making your life much easier.
  
  Why Smart SEO Highlighter is the Only SEO Extension You Need:
  ⚡ All-in-One Powerhouse: Get a full suite of analysis tools in a single, lightweight extension. Stop overloading your browser with single-function plugins.
  
  ✅ Instant On-Page SEO Audit: Uncover all critical SEO issues in the "Expanded View." Check everything from meta tags, canonicals, and hreflang to social (OpenGraph) data and structured data (JSON-LD, Microdata) in one organized panel.
  
  🔗 Advanced Link Analysis:
       ◉ Broken Link Checker: Instantly scan and highlight all broken or timeout links on a page.
       ◉ External & No-Follow Links: Effortlessly visualize all external, nofollow, sponsored, and ugc links with a single click. Essential for link builders and SEO auditors.
  
  📱 Mobile & SERP Simulation: Preview any webpage in a responsive mobile view simulator - check for mobile-friendliness and potential layout issues that affect your Core Web Vitals.
  
  ✍️ Content & Heading Structure Analysis:
        ◉ Visualize Headings (H1-H6): Instantly highlight the complete heading hierarchy of any page to analyze content structure and identify issues like missing H1 tags.
        ◉ Content Quality Score: Go beyond technical SEO. Analyze your articles and landing pages for quality, get actionable recommendations, and check for keyword density to improve your content strategy.
  
  🚀 Built for Efficiency: Our intuitive compact and expanded views ensure you get the data you need without the clutter. The extension is lightweight, secure, and respects your privacy—no data tracking, ever.
  
  
  Among this SEO Chrome extension's other key features are:
  
  - Immediately identify SEO technical and content issues of the page - all in 1 place
  - Quickly check Broken Links on the page, see them in green if valid links, and in red for invalid and broken links
  - Highlight all H1, H2, H3, H4, H5 and H6 headings on any page
  - Check and see all No-Follow links on the page - both internal and external links
  - Download internal and external links in a table: it helps you identify do-follow or no-follow links
  - Download all images on the page: perfect to identify their size, type, and other details to optimize them for better page performance
  - Toggle highlighting with a single click, seeing in visually beautiful background color
  - See the heading type (H1, H2, etc.) in the top-left corner for easy identification
  - Improve accessibility and readability by making headings more visible with color background
  - Analyze content of articles and landing pages, providing a focus keyword (optional but good for an in-depth analysis)
  - No complicated setup required - works automatically after installation
  
  So whether you're optimizing a webpage for SEO, identifying technical issues, writing content or just trying to keep your website under quality control - the "Smart SEO Highlighter" is the best Chrome extension for SEO purposes to make it easier to spot content issues, analyze it, and make it more valuable for the users.
  
  Smart SEO Highlighter is a single Extension that replaces numerous other extensions, helping you to avoid overloading your Chrome browser.
  
  Smart SEO Highlighter is an alternative of the following Chrome extensions:
  
  - Meta SEO Inspector
  - Detailed SEO extension
  - Text Headline Highlighter
  - Nofollow
  - Nofollow SEO link highlighter
  - Nofollow link checker
  - Nofollow meta tag checker
  - TextOptimizer
  - Mobile Simulator
  - Mobile View
  - MobileCards
  - Temporary Mobile View
  - Mobile View Switcher, etc.

  Developed by Albert Badalyan - an SEO Professional - "Smart SEO highlighter" is the best SEO extension to help you improve your website's quality, readability, and accessibility of your page - no matter if it's a blog post or a landing page.
  
  The extension is 100% FREE!
  
  Smart SEO Highlighter is the 1st and most complete free SEO Chrome extension that combines the functionality of 10+ other popular extensions and helps you:
  
  ✅ Easily check ALL SEO & content issues of the page
  🚀 Check Core Web Vitals (CWV) score directly in extension
  🤖 Check LLM visibility for AI tools
  </> Check Detailed Structured Data (Schema) of any page
  ❇️ Highlight ALL H1-H6 headings 
  ❌ Check page broken links
  ⏩ Identify Redirections or Redirect Chains
  📱 View page on mobile (with a single click & no coding knowledge)
  🔍 Check content quality & get handy recommendations
  🔗 See ALL external links 
  🏷️ See ALL no-follow links 
  ⚠️ See ALL external do-follow links, etc.
  
  Unlike other SEO extensions, Smart SEO Highlighter is built to handle modern, dynamic websites (like those using React or Vue) by intelligently waiting for JavaScript-rendered content to load first.
   
  Everything is available with just a single click, requiring no coding knowledge or complex setups. Whether you are an SEO specialist, a content creator, a web developer, or part of an in-house marketing team, this extension simplifies your daily workflow.
  
  Lightweight, fast, and secure - no data tracking. This is one of the best Chrome extensions that's created to make your SEO strategy, webpage, and content more efficient and valuable, thus making your life much easier.
  
  Why Smart SEO Highlighter is the Only SEO Extension You Need:
  ⚡ All-in-One Powerhouse: Get a full suite of analysis tools in a single, lightweight extension. Stop overloading your browser with single-function plugins.
  
  ✅ Instant On-Page SEO Audit: Uncover all critical SEO issues in the "Expanded View." Check everything from meta tags, canonicals, and hreflang to social (OpenGraph) data and structured data (JSON-LD, Microdata) in one organized panel.
  
  🔗 Advanced Link Analysis:
       ◉ Broken Link Checker: Instantly scan and highlight all broken or timeout links on a page.
       ◉ External & No-Follow Links: Effortlessly visualize all external, nofollow, sponsored, and ugc links with a single click. Essential for link builders and SEO auditors.
  
  📱 Mobile & SERP Simulation: Preview any webpage in a responsive mobile view simulator - check for mobile-friendliness and potential layout issues that affect your Core Web Vitals.
  
  ✍️ Content & Heading Structure Analysis:
        ◉ Visualize Headings (H1-H6): Instantly highlight the complete heading hierarchy of any page to analyze content structure and identify issues like missing H1 tags.
        ◉ Content Quality Score: Go beyond technical SEO. Analyze your articles and landing pages for quality, get actionable recommendations, and check for keyword density to improve your content strategy.
  
  🚀 Built for Efficiency: Our intuitive compact and expanded views ensure you get the data you need without the clutter. The extension is lightweight, secure, and respects your privacy—no data tracking, ever.
  
  🤖 AI Visibility Checker: The extension automatically checks if your content is ready to be cited by AI tools like ChatGPT or Claude. It considers 10 different factors and give you an analysis along with recommendations on which factors you should focus on to increase your AI visibility score.
  
  Among this SEO Chrome extension's other key features are:
  
  - Immediately identify SEO technical and content issues of the page - all in 1 place
  - Quickly check Broken Links on the page, see them in green if valid links, and in red for invalid and broken links
  - Highlight all H1, H2, H3, H4, H5 and H6 headings on any page
  - Check and see all No-Follow links on the page - both internal and external links
  - Download internal and external links in a table: it helps you identify do-follow or no-follow links
  - Download all images on the page: perfect to identify their size, type, and other details to optimize them for better page performance
  - Toggle highlighting with a single click, seeing in visually beautiful background color
  - See the heading type (H1, H2, etc.) in the top-left corner for easy identification
  - Improve accessibility and readability by making headings more visible with color background
  - Analyze content of articles and landing pages, providing a focus keyword (optional but good for an in-depth analysis)
  - No complicated setup required - works automatically after installation
  
  So whether you're optimizing a webpage for SEO, identifying technical issues, writing content or just trying to keep your website under quality control - the "Smart SEO Highlighter" is the best Chrome extension for SEO purposes to make it easier to spot content issues, analyze it, and make it more valuable for the users.
  
  Smart SEO Highlighter is a single Extension that replaces numerous other extensions, helping you to avoid overloading your Chrome browser.
  
  Smart SEO Highlighter is an alternative of over 15 SEO Chrome extensions.

• Jun 10, 2026
  permissions

  storage, scripting, activeTab, webNavigation, webRequest

  storage, scripting, activeTab, webNavigation

• May 13, 2026
  description

  Developed by Albert Badalyan - an SEO Professional - "Smart SEO highlighter" is the best SEO extension to help you improve readability, quality, and accessibility of your page - no matter if it's a blog post or a landing page.
  
  Smart SEO Highlighter is the 1st and most complete free SEO Chrome extension that combines the functionality of 10+ other popular extensions and helps you:
  
  ✅ Easily check ALL SEO & content issues of the page
  🚀 Check Core Web Vitals (CWV) score directly in extension
  ❌ Check page broken links
  ⏩ Identify Redirections or Redirect Chains
  </> Check Detailed Structured Data (Schema) of any page
  ❇️ Highlight ALL H1-H6 headings 
  📱 View page on mobile (with a single click & no coding knowledge)
  🔍 Check content quality & get handy recommendations
  🔗 See ALL external links 
  🏷️ See ALL no-follow links 
  ⚠️ See ALL external do-follow links, etc.
  
  Unlike other SEO extensions, Smart SEO Highlighter is built to handle modern, dynamic websites (like those using React or Vue) by intelligently waiting for JavaScript-rendered content to load first.
   
  Everything is possible to get with just a single click - without using other complex tools or coding knowledge.
  
  Who is this All-in-One SEO Chrome extension for?
  
  - SEO experts
  - Content writers and editors
  - QA specialists
  - Link building pros
  - Affiliate and partnership managers
  - UX designers
  - Product owners
  - Agencies, tech, and in-house marketing teams 
  - C-level managers
  
  Lightweight, fast, and secure - no data tracking. This is one of the best Chrome extensions that's created to make your SEO strategy, webpage, and content more efficient and valuable, thus making your life much easier.
  
  Why Smart SEO Highlighter is the Only SEO Extension You Need:
  ⚡ All-in-One Powerhouse: Get a full suite of analysis tools in a single, lightweight extension. Stop overloading your browser with single-function plugins.
  
  ✅ Instant On-Page SEO Audit: Uncover all critical SEO issues in the "Expanded View." Check everything from meta tags, canonicals, and hreflang to social (OpenGraph) data and structured data (JSON-LD, Microdata) in one organized panel.
  
  🔗 Advanced Link Analysis:
       ◉ Broken Link Checker: Instantly scan and highlight all broken or timeout links on a page.
       ◉ External & No-Follow Links: Effortlessly visualize all external, nofollow, sponsored, and ugc links with a single click. Essential for link builders and SEO auditors.
  
  📱 Mobile & SERP Simulation: Preview any webpage in a responsive mobile view simulator - check for mobile-friendliness and potential layout issues that affect your Core Web Vitals.
  
  ✍️ Content & Heading Structure Analysis:
        ◉ Visualize Headings (H1-H6): Instantly highlight the complete heading hierarchy of any page to analyze content structure and identify issues like missing H1 tags.
        ◉ Content Quality Score: Go beyond technical SEO. Analyze your articles and landing pages for quality, get actionable recommendations, and check for keyword density to improve your content strategy.
  
  🚀 Built for Efficiency: Our intuitive compact and expanded views ensure you get the data you need without the clutter. The extension is lightweight, secure, and respects your privacy—no data tracking, ever.
  
  
  Among this SEO Chrome extension's other key features are:
  
  - Immediately identify SEO technical and content issues of the page - all in 1 place
  - Quickly check Broken Links on the page, see them in green if valid links, and in red for invalid and broken links
  - Highlight all H1, H2, H3, H4, H5 and H6 headings on any page
  - Check and see all No-Follow links on the page - both internal and external links
  - Download internal and external links in a table: it helps you identify do-follow or no-follow links
  - Download all images on the page: perfect to identify their size, type, and other details to optimize them for better page performance
  - Toggle highlighting with a single click, seeing in visually beautiful background color
  - See the heading type (H1, H2, etc.) in the top-left corner for easy identification
  - Improve accessibility and readability by making headings more visible with color background
  - Analyze content of articles and landing pages, providing a focus keyword (optional but good for an in-depth analysis)
  - No complicated setup required - works automatically after installation
  
  So whether you're optimizing a webpage for SEO, identifying technical issues, writing content or just trying to keep your website under quality control - the "Smart SEO Highlighter" is the best Chrome extension for SEO purposes to make it easier to spot content issues, analyze it, and make it more valuable for the users.
  
  Smart SEO Highlighter is a single Extension that replaces numerous other extensions, helping you to avoid overloading your Chrome browser.
  
  Smart SEO Highlighter is an alternative of the following Chrome extensions:
  
  - Meta SEO Inspector
  - Detailed SEO extension
  - Text Headline Highlighter
  - Nofollow
  - Nofollow SEO link highlighter
  - Nofollow link checker
  - Nofollow meta tag checker
  - TextOptimizer
  - Mobile Simulator
  - Mobile View
  - MobileCards
  - Temporary Mobile View
  - Mobile View Switcher, etc.

  Developed by Albert Badalyan - an SEO Professional - "Smart SEO highlighter" is the best SEO extension to help you improve your website's quality, readability, and accessibility of your page - no matter if it's a blog post or a landing page.
  
  The extension is 100 FREE!
  
  Smart SEO Highlighter is the 1st and most complete free SEO Chrome extension that combines the functionality of 10+ other popular extensions and helps you:
  
  ✅ Easily check ALL SEO & content issues of the page
  🚀 Check Core Web Vitals (CWV) score directly in extension
  ❌ Check page broken links
  ⏩ Identify Redirections or Redirect Chains
  </> Check Detailed Structured Data (Schema) of any page
  ❇️ Highlight ALL H1-H6 headings 
  📱 View page on mobile (with a single click & no coding knowledge)
  🔍 Check content quality & get handy recommendations
  🔗 See ALL external links 
  🏷️ See ALL no-follow links 
  ⚠️ See ALL external do-follow links, etc.
  
  Unlike other SEO extensions, Smart SEO Highlighter is built to handle modern, dynamic websites (like those using React or Vue) by intelligently waiting for JavaScript-rendered content to load first.
   
  Everything is possible to get with just a single click - without using other complex tools or coding knowledge.
  
  Who is this All-in-One SEO Chrome extension for?
  
  - SEO experts
  - Content writers and editors
  - QA specialists
  - Link building pros
  - Affiliate and partnership managers
  - UX designers
  - Product owners
  - Agencies, tech, and in-house marketing teams 
  - C-level managers
  
  Lightweight, fast, and secure - no data tracking. This is one of the best Chrome extensions that's created to make your SEO strategy, webpage, and content more efficient and valuable, thus making your life much easier.
  
  Why Smart SEO Highlighter is the Only SEO Extension You Need:
  ⚡ All-in-One Powerhouse: Get a full suite of analysis tools in a single, lightweight extension. Stop overloading your browser with single-function plugins.
  
  ✅ Instant On-Page SEO Audit: Uncover all critical SEO issues in the "Expanded View." Check everything from meta tags, canonicals, and hreflang to social (OpenGraph) data and structured data (JSON-LD, Microdata) in one organized panel.
  
  🔗 Advanced Link Analysis:
       ◉ Broken Link Checker: Instantly scan and highlight all broken or timeout links on a page.
       ◉ External & No-Follow Links: Effortlessly visualize all external, nofollow, sponsored, and ugc links with a single click. Essential for link builders and SEO auditors.
  
  📱 Mobile & SERP Simulation: Preview any webpage in a responsive mobile view simulator - check for mobile-friendliness and potential layout issues that affect your Core Web Vitals.
  
  ✍️ Content & Heading Structure Analysis:
        ◉ Visualize Headings (H1-H6): Instantly highlight the complete heading hierarchy of any page to analyze content structure and identify issues like missing H1 tags.
        ◉ Content Quality Score: Go beyond technical SEO. Analyze your articles and landing pages for quality, get actionable recommendations, and check for keyword density to improve your content strategy.
  
  🚀 Built for Efficiency: Our intuitive compact and expanded views ensure you get the data you need without the clutter. The extension is lightweight, secure, and respects your privacy—no data tracking, ever.
  
  
  Among this SEO Chrome extension's other key features are:
  
  - Immediately identify SEO technical and content issues of the page - all in 1 place
  - Quickly check Broken Links on the page, see them in green if valid links, and in red for invalid and broken links
  - Highlight all H1, H2, H3, H4, H5 and H6 headings on any page
  - Check and see all No-Follow links on the page - both internal and external links
  - Download internal and external links in a table: it helps you identify do-follow or no-follow links
  - Download all images on the page: perfect to identify their size, type, and other details to optimize them for better page performance
  - Toggle highlighting with a single click, seeing in visually beautiful background color
  - See the heading type (H1, H2, etc.) in the top-left corner for easy identification
  - Improve accessibility and readability by making headings more visible with color background
  - Analyze content of articles and landing pages, providing a focus keyword (optional but good for an in-depth analysis)
  - No complicated setup required - works automatically after installation
  
  So whether you're optimizing a webpage for SEO, identifying technical issues, writing content or just trying to keep your website under quality control - the "Smart SEO Highlighter" is the best Chrome extension for SEO purposes to make it easier to spot content issues, analyze it, and make it more valuable for the users.
  
  Smart SEO Highlighter is a single Extension that replaces numerous other extensions, helping you to avoid overloading your Chrome browser.
  
  Smart SEO Highlighter is an alternative of the following Chrome extensions:
  
  - Meta SEO Inspector
  - Detailed SEO extension
  - Text Headline Highlighter
  - Nofollow
  - Nofollow SEO link highlighter
  - Nofollow link checker
  - Nofollow meta tag checker
  - TextOptimizer
  - Mobile Simulator
  - Mobile View
  - MobileCards
  - Temporary Mobile View
  - Mobile View Switcher, etc.

Permissions & access

Permissions

storagescriptingactiveTabwebNavigation

Host access

<all_urls>

Screenshots

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