How it works
The tool asks public DNS resolvers for the domain's A (IPv4), AAAA (IPv6) and CNAME records — the same lookup your browser performs before connecting. If the domain is an alias, the CNAME shows the name it points to.
Why you may see several IPs
- Load balancing — popular sites publish several addresses and rotate between them.
- CDNs — sites behind Cloudflare, Akamai or similar return the CDN's addresses, which vary by region. The address is the CDN edge, not the origin server.
- Different results elsewhere — your ISP's resolver may return other addresses. Compare resolvers with the DNS propagation checker.
Questions
Can I visit a website by its IP address?
Sometimes, but usually not: servers hosting many sites (and CDNs) need the domain name to know which site to serve, and HTTPS certificates are issued for names.