How do I check what server a host is on?

Enter any domain, hostname, or IP address into the tool. The lookup returns the IP address, ASN, ISP, organization, hosting provider, geolocation (country, city, region), and whether it is a datacenter, VPN, or proxy address — all in seconds, no account required.

What is an ASN and how do I find it for an IP?

An ASN (Autonomous System Number) identifies the network that owns and routes a specific block of IP addresses. It tells you which ISP or hosting provider controls that IP. Enter any IP or domain into the host checker and the ASN is shown alongside the organization name.

How do I find the WHOIS record for a domain?

Enter the domain name into the host checker and click the "Fetch WHOIS" button. The tool queries the relevant WHOIS database (registrar for domains, Regional Internet Registry for IPs) and displays registration details, nameservers, expiry date, and abuse contact information.

How can I tell if an IP address belongs to a VPN or proxy?

The host info tool flags IP addresses associated with known VPN providers, proxy services, Tor exit nodes, and cloud/datacenter hosting. Datacenter IPs (AWS, Hetzner, OVH, Cloudflare) are identified separately from residential and commercial ISP addresses.