DNS and MX Lookup
Type a domain. We ask for the six records that decide where its mail and its website live, and say exactly what came back — and what did not.
Empty is not the same as unanswered
A record with nothing in it and a query that failed look identical if both are printed blank, and they mean opposite things: one says this domain receives no mail, the other says nothing at all. Here they are never painted the same, and whatever did not answer is named.
What this does not tell you
One resolver, one moment. A change on its way around the world gives different answers depending on who you ask, and every record is kept for as long as its own lifetime says. If you have just changed something, what you see here can legitimately still be the old value.
If you are here, this is usually what comes next
Want to be told when it changes
This is a one-off look. Watching the nameservers, the MX and the SPF and telling you the day somebody moves them is what monitoring does — and a moved MX is how mail gets stolen.
Frequently asked questions
- I changed a record and this still shows the old one. Why?
- Because every record carries a lifetime, and a resolver keeps the answer until it runs out. Until then, different places legitimately give different answers. Lowering that lifetime a day before a move is what makes the change quick.
- What is the difference between the MX and the A record?
- The MX says which servers receive the domain’s mail; the A says which address answers on the web. They are independent: mail can keep working while the site is down, and the other way round.
- What does it mean that a query “did not come back”?
- That the resolver failed, not that the record is gone. Those two get confused constantly, and acting on the confusion means recreating something that was fine. That is why here they never look the same.