DNS Lookup Checker

DNS Lookup & Propagation Checker

The RootUtils DNS Lookup tool allows you to instantly fetch DNS records from the world's two largest public resolvers: Google Public DNS (8.8.8.8) and Cloudflare (1.1.1.1).

Why check two providers? (Propagation)

When you update your DNS records (like changing your web hosting IP or adding a verification TXT record), the change doesn't happen everywhere instantly. This delay is called DNS Propagation.

By querying Google and Cloudflare simultaneously, this tool acts as a rapid propagation checker. If both providers show the same new value, your changes have likely propagated to most of the internet. If they show different values, your update is still spreading.

Supported Record Types

• A (Address): Maps a domain to an IPv4 address (e.g., 192.168.1.1).
• AAAA (Quad A): Maps a domain to an IPv6 address.
• CNAME (Canonical Name): Aliases one domain to another (e.g., www to root).
• MX (Mail Exchange): Tells the world which email servers accept mail for your domain.
• TXT (Text): Used for verification (SPF, DKIM, Google Site Verification).
• NS (Name Server): Shows which servers are authoritative for your domain.

What do the status codes mean?

• NOERROR: The lookup was successful and records exist.
• NXDOMAIN: The domain name does not exist.
• SERVFAIL: The DNS server failed to get an answer from the domain's authoritative server.