relivo

DNS Lookup

Read the A, AAAA, MX, TXT, NS and CNAME records a domain is publishing.

Goes through our server — we keep no record of it

What each record type is

  • A and AAAA — the addresses a domain resolves to.
  • CNAME — an alias pointing at another name. This is what you add when connecting a domain to a hosted service.
  • MX — where email for the domain is delivered. Empty means the domain receives no mail.
  • NS — the nameservers in charge. If these are wrong, nothing else matters.
  • TXT — text records, used for domain verification and for SPF and DMARC, which decide whether your mail is trusted.

Why a change has not taken effect

Every record carries a TTL — the number of seconds resolvers are allowed to keep the old answer before asking again. Change a record with a TTL of 3600 and some of the internet keeps serving the previous value for the next hour, whatever your registrar's control panel says. Lower the TTL a day before a planned move and the switch is far quicker.

How this lookup is made

Unlike the other tools here, this one cannot run in your browser — browsers have no way to make a DNS query. The lookup goes through our server to Cloudflare's public resolver at 1.1.1.1. We pass only the domain name and keep no record of what you looked up.

Other free tools

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