How do you detect a site’s hosting provider?

We analyze the domain’s nameservers (NS), IP address and Autonomous System Number (ASN), and match them against a database of known providers.

How accurate is the detector?

It’s very accurate for most sites, though some use a CDN or proxy (like Cloudflare) that can mask the real hosting provider.

Can I look up the hosting of any website?

Yes, it works with any public domain — yours, a competitor’s, or any site you want to analyze.

What data do I get besides the provider name?

IP address, ASN, approximate server location, and a speed/quality score for the detected provider.

Free tool

Who is hosting this website?

Detect the hosting provider of any domain

Find out which company hosts any website — server, datacenter, provider and hosting quality.

How does this tool work?

1 Resolves the domain's IP using DNS over HTTPS
2 Queries the ASN (Autonomous System Number) of that IP
3 Identifies the organization that owns the IP block
4 Cross-references with a database of known providers

Popular providers

🇺🇸 GoDaddy

🇺🇸 HostGator

🇺🇸 Bluehost

🇧🇬 SiteGround

🇱🇹 Hostinger

🇩🇪 IONOS (1&1)

🇺🇸 DreamHost

🇺🇸 Namecheap

How to find out where a website is hosted

This tool resolves the domain’s DNS and looks up the ASN of the resulting IP. It is the fastest method, but not the only one, and none of them works alone in every case. These are the five we use when auditing a site’s infrastructure, with the exact point where each one breaks.

Method	What it reveals	Where it breaks
DNS + ASN	The public IP and the organization that owns the address block.	With a CDN or proxy in front, you see the CDN and not the real server.
MX records	The mail provider, which for most small businesses is the same as the host.	Tells you nothing if mail runs on Google Workspace or Microsoft 365.
HTTP headers	The server software (Nginx, LiteSpeed, Apache) and sometimes the control panel.	They can be hidden, and several panels now do it by default.
SSL certificate	Who issued it and which other domains it covers in the SAN field.	With Let’s Encrypt the issuer does not identify the provider.
Nameservers (NS)	Who runs the DNS zone, which usually matches the host.	If they use the registrar’s or Cloudflare’s DNS, it says nothing about the server.

What to do when the result says Cloudflare

This is the most common case and the one no tool solves on its own. Cloudflare acts as a proxy: the IP you see is theirs, not the server’s. The real host is still behind it, and it almost always leaves a trace in one of these four places.

1
Check the MX records Mail rarely goes through the proxy. If the MX points to something like mail.yourdomain.com, resolve that subdomain: it usually returns the server’s real IP.
2
Try the subdomains that are rarely proxied cpanel, webmail, ftp, mail, direct and server stay outside the proxy in many panel setups, because proxying them would break admin access.
3
Look through the certificate history crt.sh lists every certificate issued for the domain. The ones predating Cloudflare usually give the provider away, and it is often still the same one.
4
Check historical DNS The A records from before the proxy point to the origin IP. If the site has not migrated since, that IP is still the right one.

What an ASN is, and why it says more than the provider’s name

An ASN (Autonomous System Number) identifies the organization announcing a block of IP addresses in the internet routing table. It is the hardest figure to dress up: getting your own ASN means applying to a regional registry and announcing the range over BGP.

That is why the ASN separates two things a brand name hides. If the ASN belongs to the provider itself, they own network and addresses. If the ASN belongs to a wholesaler or another datacenter, they are reselling: any network problem gets resolved one step above them, outside their control.

Terranode operates its own /24 block, which is what makes it possible to hold IP reputation and move addresses between nodes without depending on a third party.

You know who hosts the site. Now what?

Measure latency from where your visitors are A European server for an Ecuadorian audience adds 120 to 200 ms to every request. It is the most noticeable difference and the one no pricing comparison shows.

Check whether the provider owns the network or resells it The ASN tells you. Reselling is not bad in itself, but it defines who can actually escalate a network problem.

Look at what language and hours they support An incident at three in the morning in your timezone is the real SLA test, not what the pricing page claims.

Confirm they can invoice in your country For an Ecuadorian company, an invoice with RUC and proper tax backing is worth more than two dollars off the plan.

If the result does not convince you, compare it against our plans: See VPS plans