Highlighter SEO

SEO Analyzer Extension for Firefox

Welcome to version 4.0! The entire design is new, with an improved UI/UX for a better experience, and 6 bugs have been fixed. And add 8 languages :

• New Design SF Pro, 16–20px cards, green switches, bento grid
• 9 languages (auto-detect + 9 flag options)
• Side Panel enabled by default + auto-refresh on navigation-
• CSS leak fixed (content-styles.css separated)
• Defensive null checks everywhere
• G.Index / G.Cache status indicators separated from buttons
• Custom search via Enter key
• HREF Lang with flag + code pills
• Polish 301 Check (color-coded HTTP status badges)
• Bar heights proportional to count

Unleash the Power of Data-Driven SEO

-Meta Overview: Easily display meta titles, descriptions, and icons. Content Highlighter: By default, highlight titles, paragraphs, and links to quickly spot potential issues.

-Image ALT Text: Ensure every image is optimized with clear and relevant ALT text. Security & Speed Checks: Verify SSL certificates and see if your pages are cached by Google.

-Title Management: Count titles, analyze average length, and review the Hn panel for thorough on-page organization.

-Follow Tags & Backlinks: Highlight follow tags, external links, and backlinks that are indexed by -Google for a comprehensive off-page review.

-Word Analysis: Examine meta keywords, word count, phrase occurrences, and even remove stop words—giving you complete control over your content strategy. Instant Documentation: Open a notes panel to record changes, insights, or next steps on the fly.

-AI Integration: Include your GPT-3.5 or GPT-4 Chat API key for direct in-browser assistance and real-time SEO feedback. Advanced Site Crawling: Quickly spot duplicate titles, 404 pages, and gain instant access to robots.txt.

-Redirect Tracing: Keep track of 301 redirects and HTTP codes, ensuring nothing slips through the cracks. Canonical & Internationalization: Pinpoint whether a page has a canonical URL or a language HREF—critical for global SEO.

-Developer Controls: Temporarily disable CSS and JS to focus exclusively on content and structure.

-Error Flagging: Highlight 404 errors in red so you can fix them immediately. Take your SEO strategy to the next level with precise insights, actionable data, and hassle-free optimization—right where you need it most.