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DNS, domains and email

Resolution, registration data, email authentication and certificate transparency.

7 tools, 1 of them local. 0 available, 7 planned.

Planned

DNS lookup

RemotePlanned

Any record type from your choice of resolver, with DNSSEC flags, TTLs, distinct outcomes and every answer clickable.

DNS compare

RemotePlanned

The same query against several public resolvers side by side, from one vantage point.

RDAP lookup

RemotePlanned

Registration data for domains, IPs and ASNs via RDAP with WHOIS fallback; expiry, nameservers, registrar and status codes explained.

SPF, DKIM, DMARC, MTA-STS, TLS-RPT, BIMI, MX, DANE and DNSSEC for a domain, with generated fix records and a graded scorecard.

Open a DMARC aggregate XML, .gz or .zip and read it as a table, in your browser.

Issued certificates for a domain: issuers, SANs, first and last seen, and the subdomains they reveal.

DNS health

RemotePlanned

Zone sanity: NS consistency, SOA serials, lame delegation, open resolvers, glue, CAA and DNSSEC chain.