Website Hosting Checker
See Who Hosts Any Site, And Why We Think So
Type a domain and this website hosting checker names the host, the CDN and the server. It shows the evidence for each guess, then lists plain fixes for anything that looks weak.
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Hosting Checker
Host, CDN, server, location, stack and domain details for any website
Type one site, or up to five separated by spaces or commas, to compare them side by side.
Type a site and the report appears here: the host, the CDN in front of it, the server software, the location and a short list of fixes.
What A Website Hosting Checker Tells You
Behind every website sits a real machine in a real building. A hosting checker finds out who owns that machine, so you can think about the site the way an engineer does.
So you type a domain and get a name, such as Cloudflare, Amazon Web Services or Hetzner. You also see the country of the server and the software it runs.
Why does that matter? Because the host decides how fast a site loads, how safe it is, and who to call when it breaks.
A single point needs saying before we start. No site prints its host on the front door. Instead, a host leaves clues, and this tool reads them all.
How To Check Website Hosting Provider Details
The tool follows the same trail a person would follow by hand. However, it does it in seconds and keeps every clue in view.
First it turns the domain into an IP address. Next it asks who owns that address, and what name the address points back to.
Then it loads the page and reads the headers. Finally it checks the name servers, the mail records and the certificate.
Each clue is a small vote for one provider. We add up the votes and show the winner with a confidence level.
Find Out Which Company Runs the Server Behind a Website The Clues We Read
No single clue is enough, so the tool reads eight kinds. A few clues are strong, others only hint.
The IP range is one of the strongest. Big providers own whole blocks of addresses, and those blocks are public.
Reverse DNS comes next. It is the name an address points back to, and it often has the host in it.
Response headers are another. A header such as cf-ray tells you a site sits behind Cloudflare, and x-vercel-id points to Vercel.
The Server header, the cookies and the page source add smaller votes. The name servers and CNAME records often name the host outright.
Why A CDN Can Hide The Real Host
Many sites sit behind a CDN, which is a network of servers placed around the world. Visitors talk to the CDN and not to the real server.
As a result, the IP address you see belongs to the CDN. The real host stays out of sight, and that is on purpose.
The report spells this out in plain words instead of hiding it. It shows the CDN as one row and any host it can still spot as another.
You can read more about how these networks work in the article on content delivery networks.
Read The Speed, Server And Security Numbers
You get far more than a company name. It also holds numbers that tell you how healthy the hosting is.
First response is the time our server waited for the page. It includes DNS and the secure handshake, so treat it as a rough guide.
Under one second is quick, and over two and a half seconds is slow. The same check from your own network may differ.
The web server and PHP version show what the site runs on. An old PHP version is a real risk, because it no longer gets security fixes.
What The Domain And Certificate Rows Mean
We read the domain age from the public registration data. A site that is many years old has usually survived a few moves between hosts. The certificate row shows who issued the HTTPS certificate and how many days are left, so you can renew it before visitors see a warning.
Line Up as Many as Five Websites
Type several domains, split by spaces or commas. The tool checks them one after another and then builds a table.
This is handy for competitor research. You see at a glance who uses a CDN, who is still on old software and who answers fastest.
It is just as handy for your own sites. If three of your five sites sit on one host, you have found a single point of failure.
Ahead of a Move to Another Host
A move goes best when you know the starting point. So run a check first and save the report.
Note the name servers, the mail provider and the certificate. Those are the three things people forget to move.
A little later, test the domain again. If the provider changed and the mail still works, the move went well.
Why Denwix Runs This Check On Its Server
Browsers stop one web page from reading the data of a different site. It cannot ask DNS, read a certificate or query a registry.
So the domain you type travels to this site, and our server does the lookups. No other route lets the check work.
We keep no copy of the domain or the answer. The note under the tool says the same thing in plain words.
On this page
- The tool
- What A Website Hosting Checker Tells You
- Using the Website Hosting Checker Step by Step
- What Sets This Hosting Checker Apart
- Reading the Verdict Without Kidding Yourself
- Mistakes People Make When They Check Hosting
- Hosting Checker FAQ
- More Free Tools For Site And Server Checks
Keep going
Using the Website Hosting Checker Step by Step
Four short steps, and the final one saves the most time.
- 1
Type one or more websites
Use plain names such as example.com. The tool strips the scheme, the path and the www for you. Add up to five, split by spaces or commas.
- 2
Decide on the registry lookup
The box starts ticked. It adds the registrar, the domain age and the end date, and it takes a second or two longer.
- 3
Read the verdict first
The big name at the top is the best answer. The badge beside it says how sure we are.
- 4
Open the evidence if you doubt it
Each provider lists what put it there. After that, copy the report or save it as a CSV or JSON file.
What Sets This Hosting Checker Apart
Naming a host is the easy part. Saying how sure you are is the hard part.
It shows its evidence
Every provider comes with the clue that put it there. So you can judge the answer yourself, and not just trust a label.
It separates the CDN from the host
A CDN in front is shown as its own row. Therefore you never mistake the proxy for the server behind it.
Every answer carries a trust badge
Rated high, medium or low by how many clues point the same way. A weak guess is never shown as a fact.
It lists the weak spots and says how to repair each one
Old PHP, no cache headers or a certificate that ends soon each get a plain sentence. Better still, each comes with the next step.
It looks at every layer of the stack
Besides the host, you see the web server, the language, the CMS and the mail provider. All of it arrives in one report.
It keeps nothing
We look the domain up and then forget it. No account, no log of your searches and no ads inside the tool.
Reading the Verdict Without Kidding Yourself
A few habits make the answer far more useful.
- Trust the confidence badge High means several clues agree. Low means one weak clue, so treat the name as a hint and check it by hand.
- A CDN is not a host When Cloudflare shows up, the site may still live on any server. Look at the second row for the host behind it.
- Speed depends on where you stand Our server measures the time from one place. A visitor on another continent may wait longer or shorter.
- Email can live elsewhere A site on one host may use Google or Microsoft for mail. That is normal, and the report lists it separately.
- Shared hosting shares an IP Hundreds of sites can sit behind one address. So an IP alone never proves who owns a site.
- Re-check after a move DNS changes spread slowly. Wait for the old TTL to run out, then test again.
Mistakes People Make When They Check Hosting
Each of these has caught a smart person out.
Treating the IP location as the owner
An IP in Frankfurt does not mean a German company runs the site. Many hosts rent space in other countries.
Stopping at the CDN name
Writing "hosted on Cloudflare" is half the story. The origin server sits behind it, and sometimes it can still be found.
Drawing a speed verdict from a single test
One slow reading may be a busy moment. Run it twice, and compare it with the other sites in the table.
Ignoring the certificate date
Expired certificates scare visitors away and hurt rankings. Put a note in your diary for four weeks before the certificate runs out.
Moving the site and forgetting the mail
Changing name servers can switch off email in a minute. Note the MX records before you start.
Hosting Checker FAQ
Is there a simple way to find the host of a website?
Enter the domain in the box, then press Check. The tool reads the IP address, the headers and the name servers, then shows the most likely host with a confidence badge.
Does the hosting checker cost anything?
Yes, it is free. You need no account, and there is no limit on how often you use it, apart from a short pause if you send very many checks in a row.
Why does it say Cloudflare and not my host?
Cloudflare is a CDN. It sits in front of the real server and answers for it. The tool shows the CDN first, then any host it can still detect behind it.
How much can I trust the verdict?
Very accurate for large providers with public IP ranges. Smaller hosts and private servers are harder, so the tool lowers its confidence and shows the evidence.
Can I check a site that is down?
Yes. If the page does not load, the tool still reads DNS and the registry. It marks the page as unreachable and tells you why.
What is meant by first response time?
It is how long our server waited for the page to start loading. It includes DNS and the secure handshake, so it is a rough guide and not a full speed test.
Can I find the hosting company that owns a domain name?
You can find the host of the site. The company that sold the domain is the registrar, and the report shows that too when the registry lookup is on.
Are the domains I enter kept anywhere?
No. The domain travels to this site for the lookups, and then we forget it. We save and share nothing.
More Free Tools For Site And Server Checks
Four that answer the next question a hosting check tends to raise.
DNS Records Checker
Read the A, MX, TXT and NS records of any domain, plus SPF and DMARC.
Open tool →SSL Checker
See who issued a certificate and when it ends.
Open tool →Domain Age Checker
Find the date a domain first went live.
Open tool →HTTP Header Checker
Read the full set of headers a server sends back.
Open tool →
Ready To See Who Hosts Your Site?
Type a domain and read the answer in a few seconds. We take no payment and open no account for you.