IP Address Utilities

  Comprehensive Tests

Free Website Test

Test your website for a variety of issues

Free Email Server Test

Test your email server for a variety of issues that can prevent delivery

Free Visual TraceRoute

See a trace route visually on a map

I.P. Lookup Examples

Gets DNS, geolocation and organization data
See example
See example
See example
See example
See example
  Scheduled Tests
To perform these tests on a regular schedule with notifications upon failure, use our website monitoring product 1stWarning.

Click here to visit 1stWarning.com


  Top I.P. Addressses

Baidu 220.181.111.86
Baidu 123.125.114.144
Baidu 220.181.111.85
Blogger 74.125.141.191
Wikipedia 208.80.152.201
Windows Live 65.55.206.154
Twitter 199.59.150.39
Twitter 199.59.148.82
Twitter 199.59.149.230
Amazon 72.21.194.1
Amazon 72.21.214.128
Amazon 72.21.211.176
LinkedIn 216.52.242.86
LiveJournal 208.93.0.128
Blog.com 195.170.168.1
Facebook 66.220.152.16
Facebook 66.220.158.70
Facebook 69.171.237.16
Facebook 69.171.247.21
Facebook 69.220.149.88
Facebook 69.171.234.21
Google 74.125.224.192
YouTube 74.125.224.239
Yahoo! 98.138.253.109
Yahoo! 98.139.183.24
Yahoo! 72.30.38.140