Website to IP Lookup

When you enter a domain name, your operating system queries a DNS resolver (usually provided by your ISP or a public resolver like 8.8.8.8). The resolver works through the DNS hierarchy — querying root nameservers, then TLD nameservers, then the domain's authoritative nameservers — to find the A (or AAAA) record containing the IP address. This process, called recursive resolution, typically takes milliseconds and the result is cached for the record's TTL duration.

Yes — a domain can have multiple A records pointing to different IPv4 addresses. This is common for load balancing (distributing traffic across multiple servers) and failover (if one server goes down, clients can connect to another). DNS resolvers typically return all IP addresses in a round-robin order. Content delivery networks (CDNs) like Cloudflare and Fastly use DNS to return different IP addresses to users based on their geographic location.

An IP address identifies a specific network interface on the internet. A single physical server (or cloud instance) typically has one IP address, but can host hundreds of websites using virtual hosting — the server uses the HTTP Host header or TLS SNI to determine which site to serve. Conversely, a single domain can resolve to multiple IP addresses across different servers. The IP address tells you where to connect; the server decides what to serve based on the domain name in the request.

Geographic DNS routing is used by CDNs and global services to direct users to the nearest or fastest server. When you query a CDN-backed domain from Europe, the DNS resolver returns an IP address for a European server; a query from Asia returns an Asian server's IP. This is implemented using Anycast routing or GeoDNS. It reduces latency and improves performance for global audiences. If you see different IPs from different DNS resolvers, geographic routing is the most likely explanation.