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 push. View uptime, downtime and response times.
Monitor your websites and APIs from multiple locations around the world and get notified by smart alerts. Get daily, weekly and monthly availability reports along with performance metrics.
SynTraffic provides realtime monitoring for your websites from any geographical region around the world. Smart alerts notify you about important issues as soon as they occur while helping you deal with alert storms gracefully.
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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 push. View uptime, downtime and response times.
Freemium Web
All-in-One monitoring solution that covers your entire application stack: • Application performance monitoring for Java, Node.js, PHP, & .
Commercial Windows Linux Android iPhone Android Tablet iPad Chrome OS Web
RapidSpike is an uptime and performance monitoring service for websites and web applications. Monitor, measure and test your digital platform eco-system from one dashboard. .
Commercial Web
Free open-source website monitoring software, easy to set up and use for monitoring web sites. You can monitor single web pages, multiple web pages, pages in sitemap and even your whole web site using spider.
Free Open Source Mac OS X Windows Linux
You can monitor up to 5 URLs with 1-minute monitoring interval, for FREE!
Free Web
Websites and networks monitoring: * Website Monitoring (HTTP / HTTPS) * False Alert Protection * DNS Server Monitoring * Ping Monitoring * SSL Certificate...
Commercial Mac OS X Windows Linux
Server Monitoring lets you monitor your servers and your websites for free with 4 minute intervals. Monitor websites with HTTP monitoring and get notified immediately...
Free Web
UptimeButler is a modern Software as a Service (SaaS) product for website availability monitoring. Whether you own a small online shop or run a big company, your...
Commercial Web