Choose the exact hostname and record type that match your question. A successful A lookup does not verify email, IPv6 or a different subdomain. Our DNS tool returns the resolver’s values and TTL so you can compare them with your provider’s instructions.
Website addresses
A records contain IPv4 addresses; AAAA records contain IPv6 addresses. Query both when a website works for some visitors but not others. A CNAME is an alias to another hostname, not a redirect to an HTTP URL.
Email and verification
MX records identify mail servers with priorities; lower values are preferred. TXT records can contain ownership-verification tokens or policies such as SPF. Seeing a TXT record does not establish that its policy is valid. Query the precise owner name specified by the service.
A repeatable check
- Copy the expected hostname, type and value from the provider.
- Select that type in the DNS tool.
- Compare the returned value, not just the presence of a result.
- Record the check time and TTL before making another change.
For example, an MX query for example.com answers a different question from an A query for www.example.com. Avoid changing the latter to fix the former.
Empty result or error?
No requested record can be a valid answer. NXDOMAIN means the queried DNS name was reported as nonexistent. A timeout or resolver failure means the check could not finish. None of these alone proves registration availability. TTL and caches can also explain differences between resolvers; this tool is not a worldwide propagation test.
Try it with your domain
Open an example WHOIS lookup · Check DNS records