Who is hosting this site?
Find out which company hosts a website, whether it sits behind a CDN, and who runs its DNS and email.
What this tool checks
DNSPeek follows the domain’s CNAME chain and looks up its A and AAAA records, then finds the network each IP address belongs to: the autonomous system number (ASN), the organisation that runs it, the address block and the country the network is registered in (not necessarily where the server is). It also reads the NS records to name the DNS provider, every one of them when they are mixed, and the MX records to name the email provider.
How to read the result
“Hosted by” is the organisation of the first public IP address. When a CDN such as Cloudflare, CloudFront, Fastly, Akamai, Vercel or Netlify is in front, recognised by the CNAME chain, reverse DNS or network, the tool says so: the addresses belong to the CDN’s edge and the origin host is hidden. Private addresses are listed but not looked up.
Planning a move
Knowing the current host, DNS provider and email provider tells you which records you must recreate at the new place. Follow the migration playbook, and read how to find your server IP when a CDN hides it.
Frequently asked questions
How does this tool know who hosts a site?
It looks up the domain’s IP addresses and asks which network announces each address on the internet, using Team Cymru’s public IP-to-ASN mapping. The network owner is usually the hosting company or cloud provider.
Why does it say Cloudflare instead of my host?
The site is behind a CDN or proxy such as Cloudflare, so public DNS returns the CDN’s addresses and the real server stays hidden. Your hosting provider can tell you the server’s own IP, which you need for a preview link.
Is the DNS provider the same as the host?
Not necessarily. DNS can be run by the registrar, by a CDN or by a separate provider, and email often goes to Google Workspace or Microsoft 365. The tool shows all three separately.
Can I see a site on its new host before DNS moves?
Yes: a DNSPeek preview link shows the site from the new server while DNS still points at the old one. You need the domain and the new server’s IP.
Moving a site to a new server?
See the site on the new server before you change DNS: DNSPeek gives you one HTTPS preview link that works on any device and that you can share with your team or client. No hosts file, no VPN.
Create a free preview link