Every check in one place. Filter by category or search by name.
Query any DNS record type for a domain.
Resolve IPv4 (A) records for a hostname.
Resolve IPv6 (AAAA) records for a hostname.
List mail exchangers and their priorities.
List the authoritative name servers.
Read TXT records including SPF and verification tokens.
Follow canonical name aliases.
Inspect the Start of Authority record.
Resolve service (SRV) records.
See which CAs may issue certificates.
Resolve an IP address back to a hostname.