DNS Lookup Tool

A DNS lookup queries the global Domain Name System to translate a human-readable domain name (like example.com) into the technical records that route traffic, deliver email, and verify ownership. Our free DNS lookup tool runs queries through a public DNS-over-HTTPS resolver directly from your browser, so results reflect the live, currently published records — not stale cached data. You can pull A and AAAA records to see which IPv4 and IPv6 addresses a hostname points to, MX records to inspect mail server routing and priorities, NS records to identify authoritative nameservers, TXT records to verify SPF, DKIM, and platform ownership tokens, CNAME records to trace aliases used for CDNs and SaaS hostnames, SOA records to read zone serials and refresh policy, and CAA records to confirm which certificate authorities are allowed to issue TLS certificates. The tool is free, requires no signup, works on any device, and is designed for developers, sysadmins, SEO specialists, and IT operators who need accurate DNS data quickly without installing dig, nslookup, or a desktop client. DNS-over-HTTPS means every query travels over an encrypted HTTPS connection, so the record data you see reflects what the authoritative nameservers actually publish — not a modified answer from a corporate proxy or an ISP that intercepts traditional unencrypted DNS traffic on port 53. TTL values returned alongside each record tell you how long a cached answer will persist before resolvers fetch fresh data; when a TTL is short (under 300 seconds), re-querying a minute later can surface an updated record after a recent change. For developers and DevOps teams, A and CNAME lookups are the fastest sanity check after a deployment: confirming that a load-balancer hostname, CDN edge domain, or Kubernetes ingress entry resolves to the right IP. For SEO specialists, TXT lookups expose Google Search Console ownership tokens and DMARC policy without having to log into a registrar or DNS provider dashboard. For IT security teams, NS and SOA lookups identify the authoritative DNS provider behind any domain — a key first step in infrastructure attribution during incident response. No account, no installation, no rate limit for normal use.