SEO Checker

Whole-site crawling happens inside the browser with SEO Checker, an extension that audits SEO, page speed, security, accessibility and AI readability. It crawls thousands of pages, scores each against 87 checks and ends with an AI summary of what to fix first, ordered by impact, plus quick wins. AI readiness checks cover whether content works without JavaScript, structured data, plain HTML links, an llms.txt file and whether AI crawlers are allowed in. It also checks hreflang validity and XML sitemaps, can generate an llms.txt or sitemap.xml from the crawl, and keeps the last 20 audits. White-label PDF reports with your own name and logo, crawling behind basic authentication and URL list mode are included, and no API key or account is needed.