SeeTheStackSeeTheStackA website's host shows up in a few places. The server's IP address belongs to a network, and that network's owner is usually the cloud or hosting company. The DNS records often point at the host by name, response headers can name the platform that served the page, and managed hosts like WP Engine and Kinsta add their own headers and cookies. We check all of these together.
Platforms that host their own sites, like Shopify, Squarespace and Wix, count as the host: a store on Shopify runs on Shopify's servers whatever domain it uses.
Limits: when a site sits behind a CDN or proxy such as Cloudflare, the IP address belongs to the CDN, and the real server, the origin, is hidden on purpose. In that case we name the CDN and only name a host when another signal gives it away.
Paste the address above. We look up the site's IP address and its network owner, read its DNS records and check the response headers for the platform that served the page.
Cloudflare, like other CDNs, stands in front of the real server and answers on its behalf. The origin host stays hidden unless a header or DNS record mentions it.
Not necessarily. The registrar is where the domain name was bought; the host is where the site's files are served from. The full report for a site shows both.
Yes. There's no sign-up and no limit on lookups.
Share of the 6,676 scanned sites where we found a CDN or host.
AWS39%
Amazon S3 (static hosting)2%
