The DNS Checker is a browser-based diagnostic tool for performing DNS lookups against a wide range of record types for any domain. It is built to give clear visibility into how a domain resolves, helping users validate configuration, troubleshoot issues, and confirm DNS behavior across different use cases.Purpose and Use Cases#
The DNS Checker focuses on quickly answering questions like “where does this domain point?”, “which mail servers are configured?”, or “is DNSSEC correctly set up?”. Typical use cases include verifying new DNS changes, debugging misconfigurations, validating email-related DNS records, and inspecting advanced records such as SRV, CAA, NAPTR, DS, and DNSKEY.It is suitable for both one-off checks and repeated use during deployments, migrations, or DNS provider changes, where frequent validation is required.Supported Record Types#
The tool supports all commonly used DNS records required for web, email, and infrastructure setups. Supported record types include A (IPv4), AAAA (IPv6), MX (mail exchange), NS (authoritative name servers), TXT (verification and SPF), CNAME (aliases), SOA (start of authority), PTR (reverse DNS), SRV (service location), CAA (certificate authority authorization), NAPTR (name authority pointer), and DNSSEC records (DS and DNSKEY) for security validation.User Workflow#
The DNS Checker offers a straightforward workflow: users enter a domain name, select the desired record type from a dropdown menu, and run the lookup to retrieve the current DNS records. The interface is designed to be fast and minimal, enabling quick iteration when switching between record types or testing multiple domains.Because it runs entirely in the browser with no login, the tool is easy to share across teams or use during support sessions, screen shares, and incident response calls.Audience and Integration#
The tool is aimed at system administrators, DevOps engineers, network specialists, and developers who manage or troubleshoot DNS on a regular basis. It is part of the broader Check My DNS suite and integrates naturally into workflows that also involve email host checks, documentation, and uptime/status monitoring through the linked resources and status page. Modified at 2026-02-07 14:16:40
