Free tools
Tools
Check a robots.txt path, a sitemap, a redirect chain, a social card, or a tab icon before you launch. No signup.
Robots.txt tester
Enter a page URL and a user-agent. See whether robots.txt allows or blocks that path, and which line decided it.
Sitemap checker
Find the XML sitemap from a domain or URL. Count URLs, lastmod, http links, duplicates, and the 50,000-URL limit.
Redirect checker
Enter a URL. See each redirect hop's status, Location header, and time, and flag loops, long chains, and temporary redirects.
OG image checker
Paste a URL and preview the card X, LinkedIn, and Facebook build from its Open Graph tags.
Favicon checker
See whether favicon.ico, apple-touch-icon, and icon link tags resolve for a public page.
AI-friendly Markdown · structured for AI citations