How to use the DNS Lookup
Use this lookup to see the common public DNS records returned for a domain or hostname and spot missing, stale, or unexpected answers.
- Enter one domain or hostname, such as example.com or www.example.com, without a URL or path.
- Compare the A, AAAA, CNAME, TXT, and NS sections with the records you expected to publish.
- Follow any CNAME target and check both address families before deciding which DNS layer is wrong.
How to read the result
Each section is the answer for that exact record type and name. An empty section can be valid, while a lookup error identifies a resolver or DNS response failure instead of silently treating it as no record.
Example
- Input
www.example.com- What to look for
- Check whether the host resolves directly through A or AAAA records or aliases elsewhere through CNAME, then verify that the destination is the one you intended.
Before you act on the result
This lookup uses Cloudflare with Google Public DNS as fallback. It does not trace delegation, query every resolver, show TTL values, or prove that the returned service is reachable.
Read the DNS Lookup Guide for the technology overview and troubleshooting steps.