DNS records & domain policy
Explore public DNS records, DNSSEC evidence, domain names, CAA and cache lifetimes.
Explore the tools
5 focused tools, with an explanation and a practical guide for each check.
Network
← All Network & DNS toolsDNS record explorer
Query A, AAAA, MX, TXT, CAA and other DNS records with TTLs and resolver status.
Network requestNetworkDNSSEC inspector
Read a validating resolver’s AD flag and inspect DS, DNSKEY and signed answer records.
Network requestNetworkDomain name inspector
Inspect ASCII domain labels, IDN conversion and hostname length without performing a DNS lookup.
Local analysisNetworkCAA record analyser
Inspect CAA flags, issuer authorisations and reporting properties from pasted record values.
Local analysisNetworkDNS TTL calculator
Convert a TTL in seconds to readable units and an illustrative cache expiry time.
Local analysis