Paste a website address to see which company hosts it: Hostinger, Kinsta, WP Engine, SiteGround, DigitalOcean, Vercel and others. The result says how we know, and when Cloudflare or another CDN hides the host, it says that too instead of guessing. Free, no signup.
- Three clues, strongest first: the server’s own response headers, where the domain points in DNS, and who owns the server’s IP address.
- Tells you which clue it used, because they don’t prove the same thing.
- Says “hidden behind Cloudflare” when a CDN answers for the site. We don’t try to get around that.
- Shows what the site is built with in the same result: WordPress and its theme, Shopify, Wix and 24 other platforms.
How the detector finds the host
| Clue | Example | What it proves |
|---|---|---|
| Response headers | x-kinsta-cache, wpe-backend, x-sg-cache, platform: hostinger | The host’s own servers answered. Strongest clue. |
| DNS (CNAME) | The domain points to …wpenginepowered.com or …pantheonsite.io | The owner pointed the site at that host. Strong. |
| IP owner | The server’s address belongs to Hostinger, DigitalOcean or OVHcloud | The site runs on that company’s network. For a small site, that is the host. A big company can rent servers there through someone else. |
| CDN in front | The address belongs to Cloudflare, Fastly or Akamai | Only who delivers the site. The real host stays hidden. |
Every check is passive: one visit to the home page and two public DNS lookups, the same things any browser does. We don’t look up old DNS records or probe other addresses to find a server a site has chosen to hide.
How often the host can be named
We ran the same three clues on two sets of sites on 22 October 2026.
| Sites | Host named by header or DNS | Named by IP owner | Hidden by a CDN |
|---|---|---|---|
| 300 big WordPress sites (Tranco top list) | 71 | 119 | 110 |
| 14 small-business sites people checked here | 3 | 8 | 3 |
Big sites are harder: more than a third sit behind a CDN, and many run on Amazon Web Services through a managed WordPress host such as WordPress VIP or Pantheon. Small sites are easier: 11 of the 14 gave their host away, mostly Hostinger, DigitalOcean, InMotion Hosting and OVHcloud.
How to find a site’s host by hand
- Read the headers. In a terminal:
curl -sI https://example.com. Look forserver,x-powered-byand any header that names a company. - Check where the domain points.
dig CNAME www.example.com +short. A target such as…wpenginepowered.comnames the host. - Find who owns the IP address.
dig A example.com +short, then look the address up in an IP-owner database such as ipinfo.io. - If the owner is Cloudflare, Fastly or Akamai, stop there. That is a CDN, not the host, and the host is hidden on purpose.
What people check with this detector
1,345 scans of 974 different sites in the last 30 days, counted from this detector's own log. Each site counts once, with its latest result. Updated every hour.
Most common hosts
Host named on 74% of sites. Hidden behind a CDN such as Cloudflare on 26%.
Stars: the average of each host's Trustpilot, G2 and Google scores (sources with 50+ reviews; Google = the company's own head-office listing), read 2026-10-22. Customer reviews, not our own test. Some host links are affiliate links.
Latest results
- 1 min ago No CMS (custom-built) · on Amazon Web Services
- 11 min ago Framer · behind Cloudflare
- 13 min ago Duda · behind Cloudflare
- 14 min ago Duda · behind Cloudflare
- 1 h ago No CMS (custom-built) · on IONOS
- 1 h ago WordPress · theme Hello Elementor
- 1 h ago Next.js · on WP Engine
- 1 h ago Next.js · on WP Engine
Site addresses are never shown.
Host, CDN, registrar: three different companies
The host runs the server the site lives on. The CDN (Cloudflare, Fastly) sits in front and delivers copies of the pages. The registrar (GoDaddy, Namecheap) only sold the domain name. One site can use three different companies, so “the domain is at GoDaddy” doesn’t mean GoDaddy hosts it. To check who a domain is registered with, a WHOIS lookup answers that question, not this tool.
Want to know what the site is built with rather than where it lives? Use the CMS detector, or the WordPress theme detector for the theme.
Questions
How do I find out who hosts a website?
Paste its address into the detector above. It reads the server’s response headers, where the domain points in DNS and who owns the server’s IP address, and tells you which of those named the host. To do it by hand, follow the four steps on this page.
Why does it say the host is hidden behind Cloudflare?
Cloudflare answers for the site, so every public clue points to Cloudflare, not to the server behind it. Site owners do this for speed and security. We don’t try to find the hidden server.
Is the company that owns the IP address always the host?
For small sites, nearly always. Big sites often run on Amazon Web Services or Google Cloud through a managed host, so the IP owner is the network under the host. The result says which clue it used.
Is the registrar the same as the host?
No. The registrar sold the domain name; the host runs the server. Many sites buy the domain at one company and host at another.
Can it tell what a site is built with too?
Yes. The same result shows the platform (WordPress, Shopify, Wix and 24 others) and, for WordPress, the theme.
Is it free?
Yes, with no signup. Some links in the results are affiliate links, marked as such; they never change what the detector finds.