🌐 Professional DNS Lookup Tool
Perform comprehensive DNS lookups to resolve domain names and check all DNS record types. Query A, AAAA, MX, TXT, NS, SOA, CNAME, and CAA records for any domain. Perfect for troubleshooting DNS issues and verifying domain configuration.
Where the answer comes from
The query runs on our server, not in your browser, so you get a neutral view - useful precisely because it is not your machine, which may still be holding an old answer. A, AAAA, MX, TXT, NS and SOA are ticked by default; CNAME and CAA are off, because most apex domains have neither. Read the SOA block when something looks wrong:
Serial: 2026090801 ; bump on every zone edit
Minimum TTL: 900 ; how long a "no such name" answer is cached
Why your change is not showing yet
Every record carries a TTL in seconds. A resolver that fetched your old A record when the TTL was 3600 may keep serving it for a full hour, and it will. Nothing pushes an update out - "propagation" is every cache in the chain reaching the end of its own countdown at a different moment. Drop the TTL to 300 a day before a migration, so the old value can only survive five minutes on the day itself.
example.com, not
https://example.com/. Records on www are a different
name and need their own lookup.Frequently asked questions
How long does a DNS change take to work?
As long as the old record's TTL, counted from when each resolver last cached it. At a TTL of 3600 the worst case is an hour; at 300 it is five minutes. Lowering the TTL afterwards does nothing - caches already hold the old value with the old TTL attached.
Why do I get different results here than on my own computer?
You are asking a different resolver. Your machine, router and ISP each keep
their own cache. On Windows, ipconfig /flushdns clears the local
one; the ISP's you cannot touch.
What does an empty MX result mean?
The domain accepts no mail. Normal for a site that sends from another domain, but if you expect mail there the MX records went into the wrong zone or were never added.