What is Website Hosting Checker?
Website Hosting Checker is a free online tool that finds the likely hosting provider and CDN of any website from its DNS records (NS, A, CNAME, MX) and HTTP server headers. No paid WHOIS API is used.
Find who hosts a website with public DNS NS/CNAME/A records and Server headers. Fah Swe Tools hosting checker guesses CDN and host providers without a paid WHOIS API — free, on-demand checks.
Key features
- Detects host and CDN (Cloudflare, Vercel, Hostinger, AWS…)
- Shows nameservers, A/AAAA, CNAME and MX records
- Reads Server headers over HTTPS
- Free, no signup
Popular uses
- Find which hosting company a website uses
- Check whether a site is behind Cloudflare
- Research competitors' infrastructure
Also known as: Who Is Hosting This, Hosting Provider Lookup, Web Host Checker.
How it works
- Enter a website URL or domain (example.com).
- Run the check — we resolve DNS and probe HTTPS headers.
- Review provider guess, NS, A/AAAA, MX, and tips.
FAQ
Is this exact WHOIS?
No. It guesses hosting/CDN from public DNS and HTTP signals. Origin IP may be hidden behind Cloudflare.
Do you store domains I check?
Checks run on demand. We do not keep a permanent hosting-check history.
How can I find out who hosts a website?
Enter the domain here. The tool checks DNS and server headers to identify the host or CDN.
Why does it show Cloudflare instead of the real host?
Cloudflare proxies traffic and hides the origin server; only the site owner knows the real host.