Query DNS records for any domain. Retrieve A, AAAA, CNAME, MX, NS, SOA, TXT, and other record types instantly.
Perform comprehensive DNS lookups for any domain name. Query and retrieve all DNS record types including A (IPv4), AAAA (IPv6), CNAME (aliases), MX (mail servers), NS (nameservers), SOA (authority), TXT (text records), and more. Essential for domain troubleshooting, email deliverability debugging, DNS migration verification, and security analysis. Results include TTL values and full record data.
A DNS record is an entry in a domain's zone that tells the internet where to send traffic. A and AAAA records point to IPv4 and IPv6 addresses, CNAME creates an alias, MX lists mail servers, NS names the nameservers and TXT holds text such as SPF rules.
TTL, or time to live, is how many seconds resolvers may cache a record before asking again. A TTL of 3600 means a change can take up to an hour to reach anyone who cached the old value, which is why people lower TTLs before a migration.
No. Browsers cannot query DNS records directly, so the domain you enter is sent to an OpenTools server, which runs the lookup and returns the records to the page. Only the domain name is sent.
