Website Hosting Checker

Website Hosting Checker

Find the hosting provider, IP address, ASN, nameservers, and mail servers behind any domain.

Safe public lookup
Only public DNS and IP ownership data is checked. Private addresses and unsafe network targets are blocked.
Checking public DNS and hosting details...

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Features

Complete Hosting Intelligence

Review public hosting, DNS, ASN, and mail infrastructure details in one clear report.

Public IP Detection

Resolve public IPv4 and IPv6 addresses published by the domain.

Hosting Provider & ASN

Match web IP addresses with their network provider, country, and ASN.

Nameserver Mapping

Inspect nameserver hosts and the public networks behind them.

Incoming Mail Routing

Check MX hosts used to receive email for the domain.

SPF Outgoing Mail

Read SPF records and discover included outbound mail providers.

Privacy & Security First

Use public DNS only with validation, timeouts, caching, and rate limits.

Frequently Asked Questions

It checks public DNS records and maps public IP addresses to the network provider, ASN, country, webserver, nameservers, and mailserver details.

Usually no. A CDN, reverse proxy, or firewall can hide the origin server, so the report may show the public edge network instead.

Yes. The tool reads public DNS and ownership information only. It does not scan ports, log in, or send requests to private network addresses.

MX records identify servers that receive email. SPF records identify providers that are allowed to send email for the domain.

Some IP ownership APIs do not return complete ASN data, or DNS may be temporarily unavailable. The IP and DNS records are still shown when possible.

DNS results are cached briefly for performance and provider lookups are cached for a limited period. Run the lookup again after a DNS or hosting migration.
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