Alternatives

Products that do what Sentinel does

Website Monitoring Built for Agencies

1. 1
   Apex Ping▲301

   Uptime & performance monitoring for websites and APIs

   2016

2. 2
   Simple Uptime▲203

   Monitor the health of your websites and servers inside Slack

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3. 3
   Sentinel | Uptime Monitoring

   Monitoring that beats your customers to the punch

   Apr 2026 · senti.solutions

4. 4
   Free Monitoring Suite by WebGazer▲338

   Monitoring for websites, APIs, and cron jobs

   2024

5. 5
   ApiChecker▲104

   Reliable uptime and performance monitoring for your services

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6. 6
   Uptime Monster▲208

   Monitor your websites and servers from one place

   2024

7. 7
   Oh Dear▲154

   Monitor your entire website, not just the homepage

   2020

8. 8
   Apollo▲101

   Reliable uptime monitoring, status pages & much more

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9. 9
   66uptime▲98

   Self-hosted & easy to use uptime monitoring software.

   2022

10. 10
    Domain Monitor▲69

    The fastest all-in-one domain & website monitoring tool

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11. 11
    easyping.▲110

    Uptime monitoring made super easy 📯.

    2020

12. 12
    PingWatch — Uptime Monitoring▲16

    Monitor your websites 24/7. Get instant downtime alerts.

    Jun 2026 · pingwatch.netlify.app

13. 13
    Sourcery Sentinel▲47

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14. 14
    Visual Sentinel▲3

    Your Website Just Broke. Do You Know Yet?

    Mar 2026 · visualsentinel.com

15. 15
    Pingify▲32

    Real-Time Monitoring for Websites

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16. 16DM
    DevRaven – Monitoring for Developers▲46

    Hi HN! I am Krishna Thota, founder of DevRaven. DevRaven is a monitoring platform for Developers. DevRaven enables engineering teams or individual developers to setup active monitoring for their services/applications and get alerted when things don't work as expected Today's launch makes available the following features: API Monitoring - Monitor your HTTP end points and perform no-code or scripted assertions. Synthetic Monitoring - Execute browser based end-to-end tests using Playwright framework. No setup required. SSL Monitoring - Monitor SSL certificates for your end points and get…

    2022 · devraven.io

17. 17
    UpsNode▲3

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    May 2026 · upsnode.com

18. 18
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19. 19
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20. 20
    Domain Monitor: SSL & Uptime▲4

    Simple uptime monitoring for your domains, SSL, and latency.

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21. 21
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    Know when your client's site goes down before they o

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22. 22
    WWT - Web Watch Tower▲2

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23. 23
    URLWatch.io▲2

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24. 24
    ProSiteMonitor▲6

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