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RankBrain

Website Hosting Checker

Identifies the answering IP network and clues to CDN, DNS and email providers; the origin host may remain unknown.

We fetch the page for you. Our server fetches the public address you enter and reads the response. Nothing you enter is stored. Free, no account.

How it works

You want to know where a site is hosted and who is behind it. This tool resolves the domain, asks the internet registries which network owns the IP address, reads the response headers and DNS records for a CDN or platform in front, and matches the name servers and mail servers to the provider that runs them.

  1. 1

    We resolve the domain, then ask the internet registries who owns the IP address and which network (ASN) announces it.

  2. 2

    Response headers and DNS records identify a CDN or platform in front of the site, such as a proxy that hides the real server.

  3. 3

    Name servers and mail servers are matched to the provider that runs them.

What it does not do

  • When a proxy or CDN answers, this lookup usually identifies its network, not the origin host. Other records may reveal an origin; this check does not establish universal secrecy.

  • The location is where the network is registered, which can differ from where the server sits.

When a source is busy or a site does not answer, this tool says so. It never fills the gap with a guess.

Questions

Why does the hosting company differ from who I pay?

You may pay a host, but a CDN or proxy sits in front and answers first. The registry record then points at the network that announces the IP, which belongs to the CDN, not your host. The tool tells you when a proxy or CDN is present, and it can only name the network it sees from outside.

The location looks wrong for my server. Why?

The location shown is where the network is registered, not where the machine sits. A network can be registered in one country and run servers in several others. When a CDN or proxy answers for the site, the address you see belongs to that network, so treat the location as a hint about the provider, not about the building.

Can I find the real server behind a CDN?

This check usually sees the proxy network rather than the origin host. That does not prove an origin is hidden from every other method. The tool tells you when that is the case, so you know the answer stops at the CDN. The CDN name, the network and the DNS and mail providers are still useful: they tell you what the site runs on.

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