Hosting Checker Tool
Enter a URL or domain name and press Enter to find out who is hosting any website.
Hosting Checker Chrome Extension
See who hosts any site you visit, directly from your browser toolbar. No copy-pasting required.
Add to Chrome
Instant Results
Cached responses deliver results in milliseconds.
Accurate Data
RDAP lookups with a curated ASN-to-host database.
100% Free
No signup, no API key, no limits on basic usage.
This website hosting checker lets you find the hosting provider behind any domain in seconds — for free. Enter a domain name and you'll get back the hosting company, IP address, ASN, and data center details with no signup required. Whether you're doing competitive research, verifying a DNS migration, or just curious about where a site lives, this web hosting checker gives you a clean, instant answer.
How Our Hosting Checker Works
Every website is served from a server with a public IP address, and that IP is registered to an organization through one of the regional internet registries. Our tool traces that path in three steps:
- DNS Resolution: Your domain is resolved to its live IP address. This reflects wherever the domain currently points, so you always get fresh data rather than cached guesses.
- RDAP Lookup: We query the IP against RDAP — the modern, structured replacement for WHOIS — to retrieve the ASN (Autonomous System Number) and the organization that owns that IP block.
- Host Identification: The ASN is matched against our curated database of hosting providers, cloud platforms, and CDNs to return a clean provider name alongside the raw technical details.
Why Check Who Hosts a Website?
There are more reasons to use a website hosting finder than you might expect. Here are the most common ones:
SEO and competitive research. When you're analyzing a competitor's site, knowing where it's hosted gives you a fuller picture of their stack. A site on AWS or a managed WordPress host signals something different than one on a shared GoDaddy plan. Use this tool to check where a site is hosted, then factor that into your performance and infrastructure benchmarking.
Security analysis. If you're investigating a suspicious domain — phishing, spam, or malware distribution — knowing the hosting provider is often the first step. You can identify whether the site is on known bad infrastructure, and it gives you a starting point for abuse reports.
DNS migration and propagation verification. After moving a site to a new host, you want to confirm that DNS has fully propagated. Checking your domain here tells you which IP it's resolving to right now and who owns it — useful for confirming the cutover is complete before decommissioning the old server.
Agency and sales prospecting. If you run a web agency, this tool helps you quickly check who hosts a domain before reaching out to a prospect. Knowing they're on an outdated shared host or a platform you support makes for a much more relevant conversation.
Vendor and partner due diligence. If you're integrating with a third-party service or evaluating a SaaS vendor, checking their hosting provider is a reasonable part of infrastructure due diligence — especially for compliance-sensitive environments where data residency matters. Pair it with a WHOIS lookup or a domain age check for a fuller picture of any domain you're researching.
Common Hosting Providers You Might Find
The results you get back depend on where the domain's DNS points. Some domains resolve directly to their host's infrastructure; others sit behind a CDN or proxy. The most frequently detected providers include:
- Amazon Web Services (AWS) (AS14618, AS16509)
- Google Cloud Platform (AS15169)
- Microsoft Azure (AS8075)
- Cloudflare (AS13335) — often a CDN layer, not the origin host
- DigitalOcean (AS14061)
- GoDaddy (AS26496)
- Hostinger (AS47583)
- Bluehost / EIG (AS46606)
If a domain uses Cloudflare, the result will show Cloudflare rather than the underlying host — this is expected behavior, since Cloudflare sits in front of the origin server. See the FAQ below for more on this.
Frequently Asked Questions
Is the hosting checker completely free?
Yes, completely free — no signup, no API key, no usage cap on basic lookups. The service is funded through non-intrusive advertising, so you can check as many domains as you need without creating an account.
Why does my result show Cloudflare instead of the actual host?
Cloudflare acts as a reverse proxy for millions of websites. When a site routes traffic through Cloudflare for CDN or DDoS protection, its DNS points to Cloudflare's IP ranges rather than the origin server. The checker correctly identifies Cloudflare as the front-end provider in those cases. To find the true hosting backend, you'd need to look at nameserver records or check the site's server headers directly — Cloudflare intentionally obscures origin IPs for security reasons.
How accurate is the hosting checker?
The IP-to-provider mapping is highly accurate for major cloud providers and hosting companies. Results are based on live DNS resolution combined with RDAP data from the regional internet registries, cross-referenced against our curated ASN database. The main source of ambiguity is CDN and proxy layers — if a site uses Cloudflare, AWS CloudFront, or a similar service, you'll see the CDN rather than the underlying host.
Can I check my own website's hosting provider?
Absolutely. Enter your own domain to see what hosting provider appears in public records. This is especially useful after a migration — you can confirm that DNS has fully propagated to the new host before you decommission the old server.
How do I check where a website is hosted?
To check where a site is hosted, type the domain into the search box above and click "Check Hosting." The tool resolves the domain's DNS, looks up the IP address through RDAP, and returns the hosting provider name, ASN, and data center details — usually in under a second. No technical knowledge required; just the domain name.
What's the difference between a hosting provider and a domain registrar?
A domain registrar is the company where you registered (purchased) your domain name — GoDaddy, Namecheap, and Google Domains are common examples. A hosting provider is where the actual website files and server live. Many people register their domain through one company and host their site through another. This tool detects the hosting provider (where the site is served from), not the domain registrar.
This free web hosting checker saves you from digging through WHOIS records manually. Whether you need to find out who hosts a website for competitive research, security analysis, or DNS verification — this website hosting finder gives you the answer in one lookup, no account required.