Alternatives

Products that do what upsonar.io does

Don't let a CDN outage break your site silently

1. 1IM
   I made a down detector for down detector▲591

   After down detector went down with the rest of the internet during the Cloudflare outage today I decided to build a robust, independent tool which checks if down detector is down. Enjoy!!

   Nov 2025 · downdetectorsdowndetector.com

2. 2
   Simple Uptime▲203

   Monitor the health of your websites and servers inside Slack

   2024

3. 3
   Better Uptime▲144

   Unified observability tool

   2020

4. 4
   Cloudflare Drop▲374

   Drop your folder in browser & deploy instantly on Cloudflare

   Jul 2026 · cloudflare.com

5. 5
   Does it use Cloudflare?▲144

   Tool to check if site uses CloudFlare

   2017

6. 6
   Pulsetic▲204

   Status pages and website uptime checker—no expert needed!

   2024

7. 7
   Freshping by Freshworks▲245

   Free forever website monitoring & status pages 🤩

   2018

8. 8
   Uptime Monster▲208

   Monitor your websites and servers from one place

   2024

9. 9
   Up Ninja▲128

   Simple and affordable uptime monitors and status pages

   2020

10. 10
    StayUp.dev▲2

    Find out if it’s your server or Cloudflare messing up.

    Nov 2025 · stayup.dev

11. 11
    easyping.▲110

    Uptime monitoring made super easy 📯.

    2020

12. 12
    Is it down?▲138

    Monitor your apis and websites on menubar

    Oct 2025

13. 13
    ApiChecker▲104

    Reliable uptime and performance monitoring for your services

    2019

14. 14
    Metrist▲91

    Respond to cloud outages faster with dependency monitoring

    2022

15. 15
    WebsiteDown.xyz▲12

    Website status checker, uptime monitor & site outage reports

    2025

16. 16
    What Broke Today▲6

    Know what's broken before your boss asks

    Jan 2026 · whatbroke.today

17. 17
    IsDown▲10

    Be the first to know when vendors go down

    2025

18. 18
    MonitorFlare

    Zero-cost uptime monitoring on the Cloudflare free tier

    15d ago · monitorflare.csr.plus

19. 19
    SiteSentry▲1

    Get alerted the second your site goes down.

    7d ago · usesitesentry.com

20. 20
    SafeWebAlerts▲6

    Is Your Website Up or Down? Monitor It 24/7

    Oct 2025

21. 21
    Upwarden▲1

    Know when your page goes down before your customers do.

    Mar 2026

22. 22CM
    Cloudflare marking all traffic from Pakistan as threat▲30

    whenever I click through to a site managed through cloudflare I end up seeing a screen asking me to identify myself. This has happened often enough especially with HN articles that I just close some articles outright and read the discussion on HN instead. As an experiment I setup cloudflare for website of mine which gets majority of its traffic from Pakistan (where I am located). This is what I see https://dl.dropbox.com/u/8037186/cloudflare.png It basically shows cloudflare marking 100% of traffic from Pakistan as known threats. I would be interested to find out if its a common problem…

    2012

23. 23
    Outage Observer▲8

    Get notified when any service in your stack has issues

    Jun 2026 · outage.observer

24. 24
    PingWatch — Uptime Monitoring▲16

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

    Jun 2026 · pingwatch.netlify.app

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