The Domain Name System (DNS) is the internet’s “phone book,” translating human‑readable domain names (for example, google.com) into the numeric IP addresses that computers use to communicate. Correct DNS configuration is critical for any website. Incorrect or outdated records can make your resource inaccessible to users and crawlers, leading to a sharp drop in rankings. A quick DNS check is one of the first and most important steps in a technical SEO audit.
Our tool lets you instantly check various types of DNS records for any domain. You can inspect A, AAAA, CNAME, MX, TXT, and other records to ensure they are correct and up to date. This helps diagnose availability problems, verify mail server configuration, and confirm domain ownership for various services. Regular DNS monitoring ensures your site remains accessible and properly crawlable.