What Is My IP Address?

Located somewhere near Ashburn, Virginia, United States. View more info »

Lookup DNS records such as A, MX, CNAME, NS and TXT.

Reverse DNS

Find hostname by IP address.

Geo IP / ISP Info

Find the city, country and ISP of an IP address (with Google Map).

Blocking List

Check if an IP address is listed in a blocking list. (zen.spamhaus.org / bl.spamcop.net)


As a web developer, I needed something that would help me troubleshoot DNS issues for clients. I also needed a tool that would help me see DNS configurations when transferring websites to different hosts, verifying Google Services, setting up email, or just finding out what's my ip address? Hopefully you can find it useful in your work as well.



  • Jan 08, 2020 - Updates to MaxMind Geo IP Lookups. Fixed CloudFlare IP issue.
  • May 14, 2017 - Updates to MaxMind Geo IP Database. SSL support. Various Bug fixes
  • November 21, 2013 - Upgraded Geo IP lookup to a more accurate database. Removed WhoIs lookup. Added shortcuts to easily perform additional lookups.
  • August 23, 2013 - Fixed bug in DNS lookups not obeying user-specified nameserver. Added Propagation Testing Tool to Lookup Results and Blocking List lookup.
  • August 11, 2013 - Added WhoIs domain name lookup. Minor bug fixes.
  • August 1, 2013 - Moved to new framework, responsive layout and DNS Resolution API. Users can now bookmark lookups for future use (see URL bar). Changed default nameserver to Google DNS ( Various bug fixes.