To find out who hosts a website, look up its IP address in DNS, then find the network that owns that address. The network’s organisation, identified by its ASN, is normally the hosting company, cloud provider or CDN. This tool does all of this for any domain or IP address and also shows the nameservers and email provider.
How do you find out who hosts a website?
- Resolve the domain’s A or AAAA record to an IP address, for example with
digornslookup. - Look that IP address up in a registry (RDAP) or an IP-to-ASN service to see the network and its organisation.
- Check the reverse DNS (PTR) hostname, which often names the provider.
- Compare with the nameservers and any CNAME. Platforms such as Shopify or Wix reveal themselves there.
Why does it show Cloudflare instead of the real host?
Many sites route traffic through a CDN or security proxy such as Cloudflare, Akamai, Fastly or Sucuri. Visitors connect to the CDN, which hides the real origin server on purpose, so the visible IP address belongs to the CDN. The tool tells you when this is the case.
What is an ASN?
An Autonomous System Number identifies a network on the internet (RFC 1930). Large hosting companies and clouds own one or more ASNs, for example AS13335 for Cloudflare and AS16509 for Amazon Web Services. Looking up the ASN of an IP address is the most reliable way to name its operator.
Is the country the physical location of the server?
Not exactly. The country shown is where the network block is registered. Large providers announce the same address ranges from many locations, so treat it as a strong hint, not as an exact server location.
Who hosts the domain’s DNS and email?
A website, its DNS and its email can all be hosted by different companies. The nameservers show who answers DNS for the domain, and the MX records show who receives its email, for example Google Workspace or Microsoft 365. The report lists both next to the web host.