WebGazer - Monitor your website's availability with WebGazer, review its performance and get instant notifications when your website goes down. No installation required and free plan available.

StatusPage.io - StatusPage.io is the best way for web infrastructure, developer API, and SaaS companies to get set up with their very own status page in minutes. Integrate public metrics and allow your customers to subscribe to be updated automatically.

Oh Dear! - Website monitoring, without the hassle

Status.io - Status.io is a platform for system status pages and status notifications. Companies rely on Status.io to track outages, schedule planned maintenances, broadcast status notifications, and much more; and their customers love the transparency.

Monitority - Simple website monitoring service (sms/email alerts)

Hund - Hund is a website that allows a business to create its own status pages. It lets a business monitor their status and keep customers informed on status changes.