SiteLens — Website & SEO Analyzer

One-click page analysis: tech stack, SEO, structure, CTAs, images and performance. Fully local — no AI, no server, no account.

SiteLens — Website & SEO Analyzer Understand any page in one click. SiteLens analyzes the page you’re viewing and shows a clear report in a floating panel — tech stack, SEO, structure, CTAs, images, and performance. Everything runs in your browser. No AI, no uploads, no account. What you get Website score — Overall score (0–100), module scores, and key issues ranked by severity Technology stack — Detects frameworks, CMS, ecommerce, CDN, analytics, and marketing tools, with evidence for each match SEO checks — Title, meta description, headings, canonical, robots, Open Graph, Twitter Card, image alt, and structured data — plus heading outline and site files (robots.txt, sitemap.xml, llms.txt) Page structure — Maps common sections (Hero, Features, Pricing, FAQ, Testimonials, Footer) and lists forms with guessed purpose CTA analysis — Finds links, buttons, and submits; groups them by position (hero / mid / footer); locate and copy on the page Image optimization — Flags missing alt, oversized images, missing lazy-load, and legacy formats Quick performance check — Live Web Vitals (LCP, CLS, INP, FCP, TTFB) plus resource and third-party summary (not a full Lighthouse audit) Built for privacy Analysis stays on your device. SiteLens does not send page content to a server and does not require sign-in. Extra Export full reports as JSON or CSV Copy a shareable summary Hover/click to locate elements on the page Light / Dark / System theme 7 languages: English, Chinese, French, Portuguese, German, Italian, Spanish How to use Open any website Click the SiteLens icon Start analysis and review the floating panel Permissions storage — Save language and theme preferences locally activeTab — Work with the tab you’re viewing Access to websites — Read the current page so analysis can run in your browser Note: Chrome internal pages and the Chrome Web Store cannot be analyzed.