DNS Lookup
Check DNS records – A, AAAA, MX, TXT, CNAME and more
Enter domain (without https://) and choose record type
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Check DNS records – A, AAAA, MX, TXT, CNAME and more
Enter domain (without https://) and choose record type
Get notified when new tools launch.
The Domain Name System (DNS) is the phone book of the internet — it translates domain names into IP addresses and controls how emails are delivered. The lookup queries the Cloudflare DNS API directly for fast and reliable results.
Particularly relevant for email delivery are SPF, DKIM and DMARC records — they prevent third parties from sending emails on behalf of your domain. If these entries are missing, emails frequently end up in spam or get rejected outright.
For domain migrations or DNS changes, the TTL value is critical: it determines how long DNS resolvers cache a response. Setting a low TTL (e.g. 300 seconds) before planned changes significantly speeds up global propagation.
The DNS Lookup supports A, AAAA, CNAME, MX, TXT, NS, SOA, SPF and DMARC records. A and AAAA return IP addresses, MX shows mail servers, TXT contains verification and SPF entries, NS shows the authoritative name servers.
An A record points a domain to an IPv4 address (e.g. 93.184.216.34). An AAAA record points to an IPv6 address. Modern servers often have both records set to support IPv4 and IPv6 clients.
SPF (Sender Policy Framework) specifies which mail servers are allowed to send emails on behalf of a domain. DMARC builds on this and defines how recipients should handle emails that fail SPF or DKIM — important against email spoofing and phishing.
DNS changes are cached according to the TTL value (Time to Live). For domain migrations, it is recommended to reduce the TTL to 300 seconds in advance so that changes become visible worldwide more quickly.
Yes, the DNS Lookup is 100% free and usable without registration. Queries run directly via the Cloudflare DNS API.