ColorZilla
Advanced Eyedropper, Colour Picker, Gradient Generator and other colourful goodies
Instant on-page SEO audit for the page you're viewing.
Review user movement over the last 30 days.
Track rating movement over time to see whether quality signals remain stable.
Compare 1-day, 7-day, and 30-day net growth and growth rate.
Review publication date, version, supported languages, and crawl timestamps.
Review the store description, core capabilities, and common use cases.
LeadRank Site Audit gives you an instant on-page SEO audit of whatever page you're viewing — no account required.
Click the toolbar icon on any page to get a 0–100 on-page score plus a prioritized checklist: title tag & meta description, canonical, indexability, mobile viewport, H1/heading structure, content depth, image alt-text coverage, internal vs external links, Open Graph & Twitter cards, structured data (JSON-LD), language, favicon, and HTTPS.
The on-page report runs entirely in your browser — fast, private, zero network calls. Nothing about the page is uploaded.
Sign in to unlock the Deep Audit: live search ranking, domain authority, backlink signals, and AI-generated fix recommendations for the page. Built for SEO specialists, agencies, marketers, and site owners.
Inspect the latest comments and rating distribution.
Review related products from the Chrome Web Store detail page.
Advanced Eyedropper, Colour Picker, Gradient Generator and other colourful goodies
The Tag Assistant extension works with Tag Assistant to help troubleshoot installation of gtag.js and Google Tag Manager.
Spoofs & Mimics User-Agent strings.
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
Adds a toolbar button with various web developer tools.
Instant website analysis, AI traffic insights, and SEO metrics at your fingertips.