I am evaluating Site24x7 and generally like what I see but one thing that is massively undermining my confidence in the reliability and security of your systems is that you keep probing my sites from IP addresses in China or unlisted IP addresses and reporting that you are testing from US cities. This is not OK. When you report that a site was unreachable from "Denver - US" but you did not test from Denver, you tested from Shanghai, China... you not only give a false alert but you trigger a series of troubleshooting of infrastructure that would pertain to traffic from Denver had a test from that location actually failed.
In the past 12 hours you have falsely reported failures from the following IP addresses, including two that do not exist in your IP Address list at all and are also not found with a search of this forum:
# 188.8.131.52 is in San Francisco ... used for testing form "Denver - US"
# 184.108.40.206 is in Shanghai China ... used for testing from "Denver - US"
# 220.127.116.11 is in Shenzhen China ... used for testing from "Salt Lake City - US"
# 18.104.22.168 is in Zhangjiakou China ... used for testing from "Salt Lake City - US"
# 22.214.171.124 is not found in the Site24x7 IP Address list ... used for tsting from "Dallas"
# 126.96.36.199 is not found in the Site24x7 IP address list ... used for testing from "Denver"
This is of particular concern given your recent promotion of being suitable for use by GovCloud tenants.
Have you been hacked or are you unable to keep up with your own system updates? Please tell me there is a good explanation that can restore confidence in your service.