Reachability
Status, redirect chain, time to first byte, and whether plain http upgrades to https.
Scan a site configuration
Enter a hostname or URL. Checks run in parallel and appear as they finish, so the fast answers are readable straight away.
We fetch the site the way a browser would, then report what is misconfigured, missing, or worth copying. Nothing about the scan is stored beyond the working session.
What gets checked
Transport
Response headers, protocol version, compression and caching behaviour.
Security
TLS versions and certificate chain, HSTS, content security policy and the rest of the header set.
DNS
A, AAAA, CNAME, MX, NS, TXT, CAA and SOA records, plus mail authentication records.
Content
robots.txt, sitemap, security.txt, social cards and other well-known files.
Exposure
A small, rate limited set of ports, and how the host responds to probes.