DNS Lookup
Query A, AAAA, MX, TXT, NS and CNAME records for any domain. Live results via DNS-over-HTTPS.
How it works
This DNS checker sends a DNS-over-HTTPS query to Cloudflare’s resolver and shows the answer records in real time. Switch the record type to inspect mail servers (MX), verification records (TXT), nameservers (NS) and more.
DNS and expired domains
A domain with no live DNS records is often dormant or dropped. Cross-check it with our WHOIS lookup and domain age checker to confirm whether it is an expired domain worth registering.
Frequently asked questions
What is a DNS lookup?
A DNS lookup queries the Domain Name System to resolve a domain into its records — A and AAAA (IP addresses), MX (mail), TXT, NS and CNAME.
How does this DNS checker work?
It queries Cloudflare’s DNS-over-HTTPS resolver directly from your browser, so results are live and need no server.
Why are there no records?
If a domain returns no A or NS records, it may be unregistered, expired or misconfigured — a signal worth checking with our WHOIS tool.