This page shows the DNS records for stackoverflow.com, queried live from public DNS servers. DNS records are the data that connect the domain name to IP addresses, mail servers and other services.
Below you can review the A, AAAA, MX, TXT, NS and CNAME records for stackoverflow.com, change the DNS server used for the query and run a new lookup for any other domain.
DNS (Domain Name System) records are entries stored in a domain's authoritative zone. They translate a human-readable name into the technical details computers need to reach the right server or service.
Common record types include A and AAAA (IPv4 and IPv6 addresses), MX (mail servers), TXT (verification and email policies such as SPF, DKIM and DMARC), NS (name servers) and CNAME (aliases).
The A and AAAA records reveal which IP addresses stackoverflow.com currently points to. The MX records list the servers that receive email for stackoverflow.com, while TXT records hold verification and email-authentication policies.
Each record also has a TTL (time to live) that indicates how long it can be cached. Higher TTLs mean changes take longer to propagate across the internet.
This page lists the public DNS records for stackoverflow.com, including A, AAAA, MX, TXT, NS and CNAME records when they exist in the domain's zone.
The A record (IPv4) and AAAA record (IPv6) shown above indicate the IP addresses stackoverflow.com currently resolves to.
Look at the MX records on this page. They list, in priority order, the servers responsible for receiving email for stackoverflow.com.
DNS changes take time to propagate because of TTL caching, and results can vary by DNS server. Try a different DNS server or run the lookup again after propagation completes.
Yes. The XploreNetHub DNS Lookup is completely free, requires no sign-up and runs directly in your browser.