How to Find Out Who Hosts a Website (and Who Owns the Domain)

Maybe you have inherited a website from a previous employee, taken over a club or charity’s admin, or you simply want to know what a competitor uses. Whatever the reason, finding out who hosts a website – and who the domain is registered with – takes about five minutes with free tools. Here is how to do it.

The three questions and where the answers live

• Who is the domain registered with? → WHOIS lookup
• Who runs the DNS? → nameserver lookup
• Whose server is the site on? → IP address lookup

These are often three different companies, which surprises people. A site might have its domain at one registrar, DNS at Cloudflare, and hosting somewhere else entirely.

Step 1: WHOIS – the domain registrar and registrant

For .uk domains, use the WHOIS search on Nominet’s website (Nominet is the official .uk registry). It shows the registrar and, for UK businesses, usually the registrant’s name. For .com/.net/.org, use any WHOIS tool (ICANN’s own lookup is reliable); the registrar is always shown, though personal registrant details are redacted for privacy.

The registrar is where the domain is managed and renewed. If the site is yours and you need control of the domain, this is the company to contact – and the registrant name tells you whether the domain is actually in your business’s name (it should be – if it is not, read our guide to domains and fix it while everything is amicable).

Step 2: Nameservers – who answers DNS for the domain

Run the domain through a DNS lookup tool (or on any computer, open a terminal and type nslookup -type=ns yourdomain.co.uk). Nameservers usually carry the provider’s name: ns1.somehost.co.uk points clearly at a hosting company, while *.ns.cloudflare.com means DNS is at Cloudflare and the actual host is one step further on. Our post on Switchweb’s nameservers shows what a typical hosting provider’s set looks like.

Step 3: IP address – the server itself

Look up the site’s A record (same DNS tool, or nslookup yourdomain.co.uk), then put the IP address into an IP-WHOIS tool. The result names the network operator. Three common outcomes:

• A hosting company’s name – that is the host, job done.
• A cloud platform (AWS, Google, Hetzner, etc.) – the site runs on rented infrastructure; the day-to-day host is whoever manages that server, which the nameservers or an agency credit in the site footer often reveal.
• Cloudflare – you are seeing the proxy, not the server. The true host sits behind it; email-related DNS records (MX, SPF) frequently leak the real provider’s name.

Reading email DNS for extra clues

The MX records (nslookup -type=mx yourdomain.co.uk) show who handles the domain’s email – often the same company as the hosting on small business sites. The SPF TXT record likewise lists permitted sending services by name. For sites hiding behind a CDN, these records are usually the quickest giveaway.

What to do with the answers

If the site is yours and you are consolidating control: contact the registrar about the domain first (it matters most), then the host about account access. If the previous admin is unreachable, our companion guide to DNS for business owners explains the records you will be asked about, and hosts and registrars all have identity-verification processes for legitimate owners.

FAQs

Is it legal to look up who hosts a website?

Yes. WHOIS, DNS and IP records are public infrastructure information. What is redacted for privacy stays redacted, but registrars, nameservers and network operators are open data.

The WHOIS says “registered through a reseller” – what does that mean?

Many web designers and hosts resell domains from a larger registrar. The registrar shown handles the domain at the top level; your commercial relationship may be with the reseller. If the reseller is unresponsive, the registrar can still verify you as the registrant.

Can I find out how much a site pays for hosting?

No – pricing is not public. But identifying the provider lets you compare like for like. If you discover you are on an expensive legacy platform, our plan comparison shows what the equivalent costs with us, and migration is included.

The short version

WHOIS for the registrar, nameservers for the DNS provider, IP lookup for the server, MX/SPF records when a CDN is in the way. Five minutes, all free. And if the answer turns out to be “a company that vanished years ago”, we can help you take back control.