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.
ProtonVPN - ProtonVPN is a security focused FREE VPN service, developed by CERN and MIT scientists. Use the web anonymously, unblock websites & encrypt your connection.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
RiseupVPN - RiseupVPN is an easy, fast, and secure VPN service from https://riseup.net. RiseupVPN does not require a user account, keep logs, or track you in any way.
Better Uptime - We call you when your website goes down
Hotspot Shield - Hotspot Shield is a software application developed by AnchorFree, Inc.