GreenVPN - Simple VPN that works in China
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Business VPN by KeepSolid - Deploy private servers for your Business in a few clicks. Protect corporate traffic and remotely unite all employees within a single network. High-level security, smooth management system, and convenient remote access - all-in-one!
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
VPN Report - I test VPNs using my credit card so you don't have to
Better Uptime - We call you when your website goes down