DNS Lookup Tool

Inspect and verify domain records across the global DNS system.

Enter a domain and click Lookup to see results.

What is DNS and Why Should You Check It?

The Domain Name System (DNS) is often called the "phonebook of the internet." It is the technology that translates human-readable addresses like 99tool.in into numeric IP addresses that computers use to talk to each other. When you use a dns lookup tool, you are peering into the live configuration of a domain to see how it routes traffic, handles mail, and verifies security.

Common DNS Record Types

A professional dns checker helps you identify several critical record types:

A Records: The core link that points a domain to an IPv4 address.
MX Records: Mail Exchange records that dictate which servers handle a domain's email. Incorrect MX records mean lost messages.
TXT Records: Often used for domain verification (like for Google Search Console) and security frameworks like SPF and DKIM to prevent email spoofing.
CNAME: Used to point one domain or subdomain to another domain address.

Troubleshooting Propagation

If you've recently moved your website or changed your email provider, you likely need a check dns records utility to see if those changes have "propagated" globally. DNS changes don't happen instantly; they take time to ripple across servers. Our dns record finder queries the Google Public DNS infrastructure directly, providing you with a high-fidelity snapshot of current global values.

Why use this tool instead of command line?

While power users use dig or nslookup, our online dns lookup provides a clean, visual table that's easier to read and share. We handle the complex JSON parsing from global DNS nodes and present it in a readable format, making it the perfect domain dns checker for both developers and business owners diagnosing technical issues.