Reverse DNS Lookup
Find the hostname behind an IP address.
Network
Network
Server
DNS Lookup
Query A, AAAA, MX, TXT, NS, CNAME, SOA and CAA records.
Query
Output
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Questions
Why do results differ from my local machine?
This query runs from our server using its resolver. Your machine may use a different resolver, may be behind a split-horizon DNS setup, or may still be holding a cached answer. TTL values in the results tell you how long any cache is entitled to hold each record.
What is a CAA record for?
It names which certificate authorities are permitted to issue certificates for your domain. CAs are required to check it before issuing. Publishing one is a cheap, high-value control against mis-issuance.
Why does my TXT record look split up?
A single DNS string is limited to 255 bytes, so longer TXT values such as DKIM keys are stored as several strings that resolvers concatenate. The results show the joined value.
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