The following are a collection of online IP Tools that can be used to quickly get information about IP Addresses, Web Pages and DNS records.
These tools are placed here to be a quick reference whether you are assessing your organizations systems, or popping boxes on a penetration testing engagement.
Free IP and Network Tools
|Test Ping||A common tool for testing connectivity to a host, perform a
|DNS Lookup||Find DNS records for a domain, results are determined using the
|Find (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.|
|Find Shared DNS Servers||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|
|Whois Lookup||Determine the registered owner of a domain or IP address block with the
|GeoIP Lookup||Find the location of an
|Reverse IP||Discover web hosts sharing an IP address with a reverse IP lookup.|
|TCP Port Scan||Determine the status of an Internet facing service or firewall|
|UDP Port Scan||Online UDP port scan available for common UDP services|
|Subnet Lookup Online||Determine the properties of a network subnet|
|Page Links||Dump all the
API access to IP Tools
Try the Free API access to the IP Tools. The purpose of providing these tools accessible via an API is to make it as easy as possible to quickly get access to information that can assist when assessing the security of an organizations network.
The output from the API is basic text, you can access the API using
curl, a web browser or a scripting language of your choice such as
Using the API is straight forward, the target system IP address or hostname can be added to the q= parameter. No key or sign-up is required to access the API.
If you are a registered user you can access an API key in the user control panel. Access with the API key must use
Example request with curl and a valid API Key:
Access to the MTR Traceroute API
Access to the on-line Test Ping API
Access to the DNS Lookup API
Access to the Reverse DNS Lookup API
Access to the Whois Lookup API
Access to the GeoIP Lookup API
Access to the Reverse IP Lookup API
Access to the HTTP Headers API
Access to the Page Links API
These tools have been made available for adhoc lookups to assist in the security assessment process. There is a limit of 100 API calls per day from a single IP address. No guarantees are made for accuracy or reliability of this service. See the HackerTarget.com terms of service for more information.
Domain Profiler for Attack Surface Discovery
Use the Domain Profiler tool to perform automated reconnaissance against a domain name. This provides a quick overview of an organisations Internet facing infrastructure within a few minutes.
Results are collected passively; no packets are sent against the target IP ranges resulting in a very stealthy way to assess an organizations perimeter.
Chrome Extension for Fast access to IP Tools
If you are a Chrome user you may find this extension helpful in your day to day work. Access all the IP Tools using a quick popup window that will be available after you install the extension.
If you are on a Windows box this is a great way to get easy access to helpful Linux command line tools (dig, whois, curl, wget).