DNS Lookup
Look up every DNS record type for a domain in one query: A, AAAA, MX, TXT, NS, CNAME, SOA and CAA. Free online DNS checker.
This check runs from our server, not from your browser, and is rate limited. Nothing you enter is stored. Private and internal addresses are refused on purpose.
What this tool is for
Most DNS tools make you pick a record type before you can see anything, which is backwards when you are debugging: the useful view is all of them at once. This queries every common type in one go, so a missing MX or a stray TXT is visible immediately. This is one of the few tools here that needs a server, because the question is about the internet rather than about your data. The request is made from our server, rate limited, and nothing you enter is stored.
How to use it
- Enter a domain name.
- Read every record type at once, each with its values.
- Use the record type filter if you only care about one.
Frequently asked questions
Why do I see old values after changing a record?
Caching. Every record carries a TTL, and resolvers keep the old answer until it expires. Lower the TTL before a planned change, and expect the tail to take as long as the previous TTL.
What is a CAA record for?
It lists which certificate authorities may issue certificates for your domain. Without one, any CA can. It is a cheap way to reduce the chance of a mis-issued certificate.
My MX record points somewhere unexpected.
That is worth checking carefully: the MX record decides where your mail is delivered. A stale value from an old provider silently sends mail to a mailbox nobody reads.