About the DNS Lookup
DNS records tell the internet where your website, email and services live. This DNS lookup queries a domain's A and AAAA records (IPv4 and IPv6 addresses), CNAME aliases, MX mail servers, NS name servers, TXT records, the SOA record and CAA records, and shows each with its TTL. It checks public DNS from our server, so no account access is needed.
Use it after moving hosts to confirm the A record points to the new server, when setting up email to verify MX and SPF TXT records, when a verification code for Search Console or another service will not validate, or before issuing an SSL certificate to check CAA rules. The TTL shows how long resolvers may cache the answer, which tells you how quickly a change can take effect.
How to use it
- Enter a domain or subdomain, without https://.
- Run the lookup and review each record type.
- Check values and TTLs against what your host or provider expects.
- Fix records at your DNS provider and look up again.
Frequently asked questions
What is a TTL in DNS?
TTL, or time to live, is the number of seconds a resolver may cache a record before asking again. A TTL of 3600 means up to an hour. Lower TTLs make changes take effect sooner but cause more lookups, so many sites lower them only before planned changes.
What is a CAA record?
A CAA record lists which certificate authorities are allowed to issue SSL/TLS certificates for your domain. If CAA records exist and your chosen authority is not listed, certificate issuance will fail. If there are no CAA records, any authority may issue.
Why does my DNS show the old IP address?
Resolvers may still have the old record cached until its TTL expires, or the change may not have been saved at the provider that is actually authoritative for your domain. Check the NS records to confirm which provider controls DNS, then compare answers with the propagation checker.