Check sites and services to make sure they are up. ServersUp.net can check a number of different services on different hosts to make sure those services are up and running. It will send alerts when the statuses change.
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ServersUp.net
Alternatives
| # | Image | App Name | Features | Platforms | Price | Website Link |
| 1 |  |
NIXStats | Web | Freemium | Website | |
| 2 |  |
Mist.io | Software as a Service (SaaS) | Freemium | Website | |
| 3 | UptimeRobot Alternatives and Similar Apps and Websites | Online Android Android Tablet |
Free with limited functionality | Website | ||
| 4 |  |
Site monitoring | Mac Windows Linux |
Free | Website | |
| 5 |  |
MxToolBox | Web | Freemium | Website | |
| 6 |  |
NetCrunch | Web | Mac Windows Self-Hosted Linux |
Commercial | Website |
| 7 |  |
Pingdom | Web | Android iPhone |
Commercial | Website |
| 8 |  |
StatusCake | Web | Android iPhone Software as a Service (SaaS) |
Freemium | Website |
| 9 |  |
Site24x7 | Web | Commercial | Website | |
| 10 |  |
Freshping | Web | Free | Website |