Start troubleshooting with the DNS response
Separate missing names, empty record types and resolver failures before choosing your next check.
Empty answers, NXDOMAIN and failures →
Similar-looking results can call for very different next steps.
Keep useful evidence of a DNS incident →
Capture enough context to reproduce a problem, rather than saving only an IP address.
Record type reference
- A / AAAA
- IPv4 and IPv6 addresses associated with a name.
- CNAME
- An alias relationship between one name and another.
- MX
- Incoming mail servers and their preference values.
- TXT
- Public text, such as SPF, verification values or DKIM data.
- NS / SOA
- Nameservers and essential zone information.
- SRV
- Service target, port, priority and weight. Enter the full service name.
- PTR
- Reverse mappings. Enter the corresponding in-addr.arpa or ip6.arpa name.
- CAA
- Public statements about certificate issuance authorization.
Scope of a lookup
All types covers common record types for the name you enter. It does not enumerate every subdomain or perform zone transfers, port scans or global propagation tests. Answers come from one recursive DNS service and may reflect its cache.