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Your Public IPv4 Address

Instantly check any IP address or domain against the mainstream blacklists — plus location, ISP, and browser fingerprint.

Leave blank to check your own IP · works with any IPv4 or domain · 12 DNSBLs
Public IPv4  //  Live Lookup
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Diagnostics Suite  //  Free Tools

Everything you need to inspect a domain or server

Fast, no-login network and hosting checks — run live from our servers. Point them at any domain or IP.

Location
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Postal
Coordinates
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ISP / Carrier
Organization
ASN
Connection
Reverse DNS
PTR Record
Hostname
rDNS Status
Browser & OS
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