Pre-launch checklist

  1. Use the Meta Tag Checker to make sure every page has a unique title, description and canonical.
  2. Use the Open Graph Checker to preview how links look when shared.
  3. Use the Redirect Checker to confirm http → https and non-www → www take a single 301.
  4. Use the SSL Checker to confirm the certificate covers your domains and isn't about to expire.

FAQ

Why do these checkers go through a server?

Browsers cannot read another site's response headers or certificates for security reasons, so our server connects on your behalf. Queries are not stored.

Can I check an intranet site or localhost?

No. For security, checkers only connect to addresses on the public internet.