Which types can I query?
- A / AAAA — the domain’s IPv4 / IPv6 addresses.
- MX — mail servers.
- TXT — verification, SPF, DKIM, DMARC.
- CNAME — alias to another name.
- NS / SOA — authoritative servers and zone.
- CAA — allowed certificate authorities.
DNS tools
DNS checker
Inspect a domain's DNS records instantly — A, AAAA, MX, TXT, CNAME, NS, SOA, CAA — with no setup and no sign-up.
How it works
Every query goes through Cloudflare 1.1.1.1 over DNS-over-HTTPS. No third-party script, no cookie — your lookup stays anonymous.
To check propagation after a DNS change across several resolvers, use the propagation tool — that one is only available in French for now.
Frequently asked questions
- Why are my DNS changes not propagating?
- DNS propagation depends on the TTL of the records and on the caches of intermediate resolvers. Expect anything from a few minutes to 48 hours. Use the propagation tool to compare the caches of several public resolvers.
- How do I check that my MX record is correct?
- Pick the MX type in the tool above and run the lookup. Check the priority (lower means tried first) and that the server name points to a reachable target. For email security, pair it with SPF, DKIM and DMARC.
- What is TTL and how should I set it?
- TTL (Time To Live) is how long a resolver may cache the record. A short TTL (300 s) makes changes take effect faster but increases load; a long TTL (3600 s or more) speeds up answers but slows changes down.