About ResolveDNS
A free, fast, and privacy-focused DNS lookup tool that helps you verify DNS propagation across multiple global resolvers.
How to Use
Enter Your Domain
Type any domain name in the search box (e.g., example.com, subdomain.example.com). You don't need to include http:// or https://.
Click Lookup DNS
Press the "Lookup DNS" button or hit Enter. We'll query 7 different DNS resolvers around the world simultaneously.
View Results
See all DNS records (A, AAAA, CNAME, MX, TXT, NS, SOA) returned by each resolver. Click on the resolver tabs to compare results between providers.
Explore IP Details
Click on any IP address to expand and view detailed information including geographic location, ISP, organization, and ASN data.
Features
7 Global Resolvers
Query Cloudflare, Google, Quad9, OpenDNS, NextDNS, AdGuard, and Mullvad DNS servers.
All Record Types
View A, AAAA, CNAME, MX, TXT, NS, and SOA records in one lookup.
IP Geolocation
Click any IP to see location, ISP, organization, and ASN details.
Instant Results
Parallel queries mean you get results from all resolvers within seconds.
TTL Display
Human-readable TTL values show when records will expire and refresh.
Provider Detection
Automatically identifies TXT records for Google, Yandex, Microsoft, and more.
What is DNS?
DNS (Domain Name System) is the internet's phonebook. When you type a domain like "example.com" into your browser, DNS translates that human-readable name into an IP address that computers use to identify each other.
DNS propagation refers to the time it takes for DNS record changes to be updated across all DNS servers worldwide. When you change your domain's DNS records, it can take anywhere from a few minutes to 48 hours for those changes to propagate globally.
This tool helps you check if your DNS changes have propagated by querying multiple DNS resolvers simultaneously, so you can see exactly what each server is returning.