Diagnostic tool

HTTP Header Checker

Inspect response headers that affect indexing, caching, security, previews, and browser behavior.

Related tools

Noindex Checker
Detect noindex meta tags and X-Robots-Tag headers on a page.
Canonical Checker
See where a page's canonical link points and whether it matches the page itself.
Redirect Chain Checker
Trace every hop in a redirect chain to spot loops and excessive redirects.
Sitemap Checker
Test whether your XML sitemap is reachable, valid, and parseable.