Instantly look up DNS records for any domain — A, AAAA, MX, NS, TXT, and CNAME. Powered by Cloudflare's DNS-over-HTTPS API for accurate, real-time results.
Enter a domain and click Check DNS
DNS propagation is the time it takes for updated DNS records to spread across all DNS servers worldwide. Changes typically propagate within minutes to 48 hours, depending on the TTL (Time To Live) value of the previous record. Lower TTL values speed up propagation.
A — maps a domain to an IPv4 address. AAAA — maps to an IPv6 address. MX — specifies mail servers for the domain. NS — lists the authoritative nameservers. TXT — stores arbitrary text, often used for SPF, DKIM, and domain verification. CNAME — aliases one domain to another.
DNS checkers query different DNS resolvers around the world. During propagation, some servers have the new records while others still cache the old ones. This tool queries Cloudflare's global DNS resolver (1.1.1.1) for consistent, up-to-date results.
TTL (Time To Live) is the number of seconds a DNS resolver caches a record before requesting a fresh copy from the authoritative nameserver. A TTL of 300 means the record is cached for 5 minutes. Lower TTL = faster propagation but more DNS queries.
Our API returns structured JSON for any domain and record type. Perfect for monitoring, automation, and deployment pipelines.
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