Dev tools · alternatives · 2026

24 alternatives to Watchdog

Know your site is down before your client does

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Pulsetic▲407

   Know when your site is down before your customers do

   2020 · pulsetic.com · its alternatives →

2. 2
   SimpleOps▲297

   Keep your websites up and never lose customers

   2020 · simpleops.io · its alternatives →

3. 3
   Apollo▲101

   Reliable uptime monitoring, status pages & much more

   2020 · its alternatives →

4. 4
   DownNotifier▲139

   Get an alert when your website is down 🚨

   2016 · downnotifier.com · its alternatives →

5. 5
   Monitor v2 [Retired]▲129

   Alert your entire team when your site goes offline.

   2015 · brandongreen.co · its alternatives →

6. 6
   Uptime Monitor▲76

   Get instant alerts when your website goes down.

   2023 · uptime-monitor.io · its alternatives →

7. 7
   Downtime Monkey▲69

   Website downtime alerts & uptime monitoring

   2018 · downtimemonkey.com · its alternatives →

8. 8
   UptimeRobot App 2.0▲199

   Web, SSL, ports & Cron-jobs monitoring

   2021 · uptimerobot.com · its alternatives →

9. 9
   Simple Uptime▲203

   Monitor the health of your websites and servers inside Slack

   2024 · simpleuptime.app · its alternatives →

10. 10
    UptimeWatchdog▲2

    Know when your website goes down before your users do.

    May 2026 · uptimewatchdog.com · its alternatives →

11. 11
    Whydown▲3

    Website monitoring with instant downtime alerts.

    Jul 2026 · whydown.org · its alternatives →

12. 12
    ApiChecker▲104

    Reliable uptime and performance monitoring for your services

    2019 · its alternatives →

13. 13
    Odown▲74

    Simple and reliable uptime monitoring service

    2021 · odown.com · its alternatives →

14. 14
    elmah.io▲71

    Cloud logging for .NET web applications

    2022 · elmah.io · its alternatives →

15. 15
    Uptime Monitor by HetrixTools▲81

    Minimize your downtime by being the first to know about it

    2021 · hetrixtools.com · its alternatives →

16. 16
    SiteIsDead.dev▲11

    Phone alerts for website downtime | real-time monitoring

    Nov 2025 · siteisdead.dev · its alternatives →

17. 17
    StatusPing▲78

    Monitor everything about your website

    2021 · its alternatives →

18. 18
    Tell Me When Down▲6

    Uptime monitoring & a free website security scan

    Jul 2026 · tellmewhendown.com · its alternatives →

19. 19
    PingWatch — Uptime Monitoring▲16

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

    Jun 2026 · pingwatch.netlify.app · its alternatives →

20. 20
    24/7 Uptime, SSL & SEO Alerts▲8

    Website monitoring & health checks

    2025 · its alternatives →

21. 21
    SiteSentry▲1

    Get alerted the second your site goes down.

    Aug 2026 · usesitesentry.com · its alternatives →

22. 22GC
    Get calls on mobile, skype when a website is down▲16

    NotifyNinja saves your website and servers from a big downtime. You and your team will be first who will know about problems with your websites

    2014 · notifyninja.com · its alternatives →

23. 23
    Talgora▲8

    Monitor your site's SSL and headers — before attackers do

    2025 · talgora.com · its alternatives →

24. 24
    AlertsDown▲5

    Simple uptime/SSL monitor with instant alerts

    Dec 2025 · alertsdown.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →