Check a page or a domain the way the internet meets it
No sign-up. Pick what to check, type an address, and get the answer on the spot. Every check of one kind on one site counts once an hour.
Pages
Check all 6- OG image checkerHow a link looks when it is shared, and what its share tags lack.
- X card testerA link’s X card tags, and whether X may frame its player.
- What an agent readsA page beside the Markdown an assistant gets from it, and what gets in the way.
- Multi-location graderEvery location page read together, and graded on what only shows across them.
- Schema markup checkerEvery block of structured data: whether it parses, and what it lacks.
- Schema creatorJSON-LD from a short form, with the fields Google requires marked.
- Heading checkerThe h1 to h6 outline a crawler reads, and what is wrong with it.
Utilities
Check all 4- Website speed testHow fast a page answers a crawler, and how much it weighs.
- Redirect checkerEvery hop an address takes, with its status code and where it points.
- SSL certificate checkerWhether a certificate is valid, trusted and current, and how the connection is made.
- AI crawler checkerWhich AI crawlers robots.txt lets in, and whether there is an llms.txt.
Domain and email
Check all 5- DNS health checkerName servers, SOA, addresses, CAA and every mail record, read at once.
- MX record checkerWhich servers take a domain’s mail, and whether each one resolves.
- SPF record checkerEvery include followed, with its lookups counted against the limit of 10.
- DMARC checkerThe policy for mail that fails, where reports go, and how much it covers.
- DKIM checkerDKIM keys at the common selectors or your own, and their length.