What Is Domain to IP Lookup?
A domain to IP lookup converts a human-readable domain name (like google.com) into its numerical IP address (like 142.250.80.46). Every website on the internet is hosted on a server with a unique IP address. When you type a URL in your browser, the Domain Name System (DNS) performs this conversion automatically — our tool shows you exactly what IP addresses any domain resolves to.
Our free domain IP lookup tool goes beyond basic resolution. It finds all IPv4 and IPv6 addresses, maps each IP to its physical location, detects CDN providers like Cloudflare and AWS, and identifies the hosting organization and ASN. Whether you need to check the IP of a website, verify server locations, or troubleshoot DNS issues, this tool provides complete IP intelligence in seconds.
How to Find the IP Address of a Website (3 Methods)
There are several ways to find the IP address of a website. Our online tool is the fastest and most comprehensive method, but knowing command-line alternatives is useful for system administrators.
nslookup example.com or ping example.com. Both commands convert the domain name to IP address. The ping command also tests connectivity to the resolved IP.dig example.com +short for a quick IP lookup, or dig example.com AAAA +short for IPv6 addresses. The dig command provides detailed DNS response data. For full DNS record lookup, use our dedicated DNS Lookup tool.What Domain to IP Lookup Reveals
When to Use Domain to IP Lookup
IPv4 vs IPv6: Understanding Domain IP Addresses
When you convert a domain to IP, the result can be an IPv4 address, an IPv6 address, or both. Modern websites increasingly support dual-stack networking for maximum compatibility. Here's how the two protocols compare:
IPv4 (A Record)
- Format: 32-bit, four decimal numbers (e.g., 192.168.1.1)
- Capacity: ~4.3 billion addresses (exhausted)
- Support: Universal — every device supports IPv4
- DNS Record: A record maps domain to IPv4
IPv6 (AAAA Record)
- Format: 128-bit, eight hex groups (e.g., 2001:0db8::1)
- Capacity: 340 undecillion addresses (virtually unlimited)
- Support: ~45% of internet traffic uses IPv6
- DNS Record: AAAA record maps domain to IPv6
Use our IPv4 to IPv6 converter to translate between formats, or the IPv6 Compression tool to work with IPv6 addresses.
CDN Detection & ASN Information
When you look up the IP address of a website, the result often belongs to a CDN (Content Delivery Network) rather than the origin server. CDN providers like Cloudflare, Amazon CloudFront, Akamai, and Fastly distribute content across hundreds of servers worldwide. Our domain to IP tool detects these CDN deployments by analyzing IP ranges and ASN data.
An ASN (Autonomous System Number) identifies the network operator that controls a block of IP addresses. For example, Cloudflare operates AS13335, Google uses AS15169, and Amazon AWS runs AS16509. The ASN reveals which organization hosts the server and how traffic is routed across the internet. For deeper ASN analysis, use our ASN Lookup tool.
Best Practices for Domain IP Management
- Enable IPv6 (AAAA records) for future-proof connectivity
- Use a CDN for global content delivery and DDoS protection
- Monitor IP changes to detect unauthorized DNS modifications
- Use multiple IPs for redundancy and load balancing
- Verify server location matches your target audience
- Check IP reputation to avoid blacklisted addresses
- Set up proper reverse DNS (PTR) records for each IP
- Review SSL certificates for each IP to ensure secure connections
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