How to find out who hosts a website

Want to know where a competitor hosts their site, or which company is behind a website you've inherited? There's no single "host" record, but four public signals usually reveal the answer. Our free Who hosts this website? tool checks all four at once and shows the evidence.

1. Look up the IP address owner

Every website resolves to an IP address, and every IP address block is registered to an organization in a regional registry (ARIN, RIPE, APNIC…). Looking up the IP's registration (via RDAP, the modern WHOIS) usually names the hosting company or the data-center provider it rents from. Check DNS records to find the IP first.

2. Check reverse DNS

Many hosts give their servers names in their own domain, such as *.unifiedlayer.com (Bluehost and HostGator's parent network) or *.siteground.net. A reverse DNS lookup on the IP reveals that name.

3. Read the HTTP headers

Web servers often identify themselves. Managed hosts add their own headers (WP Engine and Kinsta, for example) and platforms like Shopify, Wix, Squarespace, Vercel and Netlify leave obvious fingerprints. Our website status check shows all headers.

4. Look at the nameservers (carefully)

Nameservers show who hosts the DNS, which is often (but not always) the web host. A domain using GoDaddy's or Namecheap's nameservers may well be hosted somewhere else, so treat this as a supporting clue only.

Why some sites can't be traced

If a site sits behind Cloudflare (or another CDN or firewall such as Sucuri), every public signal points to the CDN, not the origin server. That's by design: it protects the server. In that case, the honest answer is "hidden behind Cloudflare", which is what our tool reports.

What to do with the answer

If you're curious about a competitor's host, check our review of it for the real price and alternatives. If you're inheriting a site, the IP owner and nameservers tell you which accounts you need access to.