Free SEO Tools
Hosting / Network Checker
Enter a domain to see its resolved IP, reverse DNS, and detected network/ASN.
About this tool
Network detection uses Team Cymru's free, public DNS-based IP-to-ASN service — a plain DNS lookup, not a paid geolocation API. It identifies which network operates the IP address, which is not always the site's actual hosting company (for example, behind a CDN or cloud reseller) — treat it as “detected network,” not a guarantee.
Frequently Asked Questions
- How does this detect the network/provider?
- Via Team Cymru's free, public DNS-based IP-to-ASN service — a plain DNS lookup, not a paid geolocation API.
- Does this guarantee the exact hosting company?
- No — it identifies which network operates the IP, which isn't always the actual hosting company (e.g. behind a CDN or reseller).
- What is reverse DNS?
- The hostname associated with an IP address, looked up in the opposite direction from a normal DNS lookup.