Free IP tools

Whois Lookup

Determine the registered owner of a domain or IP address block with the whois tool.

DNS Lookup

Find DNS records for a domain, results are determined using the dig DNS tool.

TCP Port Scan

Lookup which ports are opened.


Using mtr an advanced traceroute tool trace the path of an Internet connection.


A common tool for testing connectivity to a host, perform a ping from our server.

DNS (A) Records

Find forward DNS (A) records for a domain.

Reverse DNS

Find Reverse DNS records for an IP address or a range of IP addresses.

Shared DNS

Find hosts sharing DNS servers.

Zone Transfer

Online Test of a zone transfer that will attempt to get all DNS records for a target domain.

IP Geolocation

Find the location of an IP address using the GeoIP lookup location tool.

Reverse IP

Discover web hosts sharing an IP address with a reverse IP lookup.

UDP Port Scan

Determine the status of an Internet facing service, firewall or common UDP services.

Subnet Lookup

Determine the properties of a network subnet

HTTP Headers

View HTTP Headers of a web site. The HTTP Headers reveal system and web application details.

Page Links

Dump all the links from a web page.

AS Lookup

Get Autonomous System Number or ASN details from an AS or an IP address.

Banner Grabbing

Discover network services by querying the service port.

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