Query A, AAAA, MX, TXT, NS, SOA, CAA and more through public resolvers, with TTLs.
Check a domain's MX, SPF, DMARC, DKIM, MTA-STS and BIMI setup, with a pass/fail verdict per record.
Inspect a server's TLS certificate: issuer, SANs, expiry, key, protocol and cipher.
Follow a URL's redirect chain and inspect status codes, response headers and security headers.
Registration data for a domain or IP from RDAP: registrar, dates, status, name servers, network owner.
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