Hosting Provider

The Hosting Provider lookup identifies which company hosts a given domain by resolving the site's IP address and mapping that address to its owning organization. It combines DNS resolution with IP-to-organization data such as the ASN (Autonomous System Number), the network's registered owner, and reverse DNS information to infer whether a site sits on AWS, Cloudflare, Google Cloud, a shared shared-hosting provider, or a dedicated server. The result tells you the infrastructure behind a website rather than its domain registrar.

Under the hood the tool resolves the domain's A or AAAA records to one or more IP addresses, then looks up the ASN and network allocation that owns the address space. Because so many sites now sit behind CDNs and reverse proxies, the detected provider often reflects the edge network (for example Cloudflare or Fastly) rather than the true origin server. Recognizing this distinction is key to interpreting results correctly.

Typical use cases include competitive infrastructure research, abuse and security investigations where you need to file a complaint with the correct host, migration planning when assessing a target's current stack, and due diligence before relying on a third-party service. It works well alongside a Reverse IP Lookup to see what else is on the same address and a WHOIS Lookup to separate the registrar from the hosting company.

Practical tip: if the lookup returns a CDN, the real origin host may be masked, and you may need DNS history, mail (MX) records, or subdomain enumeration to find the true backend. Conversely, a result pointing at a major cloud provider's generic IP space tells you the platform but not the specific account or region. When precision matters, corroborate with multiple data points rather than trusting a single ASN label.