UptimeRobot Dashboard with 50 Monitors, Checked Every 5 Minutes, Totally Free. Monitor HTTP(s), Ping, Port and check Keywords. Get alerted via e-mail, SMS, Twitter, web-hooks or... Freemium Web Public Status Page Uptime Monitoring Support for Let's Encrypt Add a feature 76 Like
Pingdom Pingdom is a service for testing performance of website. Enter a URL to test the load time of that page, analyze it and find bottlenecks. Commercial Web Android iPhone Performance Monitoring Transactional Monitoring Uptime Monitoring Add a feature 54 Like
StatusCake StatusCake enables the visitor to track unlimited websites for free and get alerts when the site is down or having trouble. StatusCake also tracks performance over time... Freemium Web Network Monitoring Uptime Monitoring Add a feature 36 Like
Cabot Self-hosted, easily-deployable monitoring and alerts service - like a lightweight PagerDuty. Free Open Source Self-Hosted No features added Add a feature 9 Like
NIXStats SaaS monitoring tool for linux servers and websites. Think up-time robot but with more features. You can monitor your linux hosts, windows hosts under development. Freemium $ $ $ Web Uptime Monitoring Computer monitoring Downtime detection Performance Monitoring ... Uptime Monitoring Add a feature 6 Like
Site24x7 Comprehensive website and web application monitoring: * simulate a real browser (Firefox) to check performance * services monitoring (FTP(S), DNS, PING, TCP, SSL... Freemium Web IT Automation Uptime Monitoring Add a feature 8 Like
Binary Canary Website monitoring service that offers a comprehensive free plan with: * escalation levels (if a first-responder contact doesn't acknowledge the downtime, another... Commercial $ $ $ Web Uptime Monitoring Add a feature 4 Like
Monitis Monitis is a Cloud monitoring and IT analytics service offering Website Monitoring, Server Monitoring, Network Monitoring, Application Monitoring, Cloud Monitoring, and... Freemium Web Network Monitoring Uptime Monitoring Add a feature 22 Like
healthchecks.io Monitor cron jobs and get notified when they fail. For each job you want to monitor, you create a "check" on healthchecks.io website. Each check has an... Freemium $ $ $ Open Source Linux Web Network Monitoring Add a feature 9 Like
Nodeping NodePing Server Monitoring and Web Site Monitoring. Simple but powerful Internet service monitoring. Checks as frequent as once a minute. Commercial Web No features added Add a feature 3 Like
Port Monitor Port Monitor is an easy and online tool that does website and server monitoring for you 24/7 every 60 seconds and sends you or your co-workers instant email/push... Freemium Web Uptime Monitoring Add a feature 125 Like
RapidSpike RapidSpike is an uptime and performance monitoring service for websites and web applications. Monitor, measure and test your digital platform eco-system from one... Commercial Web Real User Monitoring Uptime Monitoring Public Status Page Supports SSL certificate Add a feature 7 Like
Montastic The website monitoring service that doesn't suck. Get an email when your website goes down. Statuses are available by email, web, RSS feeds and widgets. Freemium Web Uptime Monitoring Add a feature 2 Like
HappyApps Sophisticated Uptime Monitoring for your Apps, DBs, IT systems, and business services. Get pro-active alerts and fix incidents with ease without the noise. Freemium Mac OS X Windows Linux Web Uptime Monitoring Add a feature 23 Like
Webcron Webcron offers website uptime monitoring, plus the possibility of setting up and running cron jobs. Commercial Web Performance Monitoring Add a feature 10 Like
