Website Checker — Free AI-Powered Website Analysis

Website Checker is a free online tool that audits any public website in seconds. Paste a URL, press run, and the scanner performs sixty automated checks against the live page, then an AI model turns the raw results into a readable report with strengths, weaknesses and concrete suggestions.

How it works

The backend fetches your page exactly like a browser would, inspects the returned HTML and response headers, and probes root files such as robots.txt, sitemap.xml and llms.txt. Every check produces a pass or fail result with a plain-language explanation, and each category is scored as a percentage so you can see at a glance where the site stands. Nothing is installed on your site and no account is required.

What we check

• SEO: title and meta description quality, heading structure, image alt text, canonical and robots directives, Open Graph and Twitter cards, and whether the page has enough text content to rank.
• Security: HTTPS usage, HSTS, Content-Security-Policy and the other protective response headers, technology disclosure, and mixed content.
• Performance: page weight, compression, caching headers, render-blocking scripts, image dimensions, lazy loading and iframe usage.
• Accessibility: document language, zoom-friendly viewport, form labels, landmark elements, button and link names, and heading order.
• Best practices: doctype, charset, favicon, deprecated tags, safe target="_blank" links and modern scripting habits.
• GEO (Generative Engine Optimization): how well AI answer engines like ChatGPT, Claude and Perplexity can read, understand and cite your site.

Why it matters

Search engines, browsers and AI answer engines all reward pages that are fast, secure and clearly structured. Fixing the issues this scanner surfaces improves your ranking, protects your visitors and makes your content easier for AI assistants to quote accurately. Run a scan after every significant change to catch regressions before your users do.

Last updated July 11, 2026.