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Dev tools · alternatives · 2026

24 alternatives to Vigilmon

Free uptime monitoring + SSL expiry alerts + status pages

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

    Monitoring for websites, APIs, and cron jobs

    2024 · webgazer.io · its alternatives →

  2. 2

    Free forever website monitoring & status pages 🤩

    2018 · freshworks.com · its alternatives →

  3. 3

    No more expired SSL certificates

    2021 · haveibeenexpired.com · its alternatives →

  4. 4
  5. 5

    Monitor everything about your website

    2021 · its alternatives →

  6. 6

    Self-hosted & easy to use uptime monitoring software.

    2022 · 66uptime.com · its alternatives →

  7. 7

    Get real-time alerts for your SSL expiry

    2022 · its alternatives →

  8. 8

    Get instant alerts when your website goes down.

    2023 · uptime-monitor.io · its alternatives →

  9. 9

    Free uptime and SSL monitoring for your website.

    2020 · monitoria.ca · its alternatives →

  10. 10

    Website monitoring & health checks

    2025 · its alternatives →

  11. 11

    Simple uptime & SSL monitoring for client sites

    Jul 2026 · pulsewatch.cc · its alternatives →

  12. 12

    Free Web Monitoring & Status Page

    2023 · its alternatives →

  13. 13

    Reliable uptime and performance monitoring for your services

    2019 · its alternatives →

  14. 14

    I'm trying to disrupt the insane pricing of uptime monitoring. I hope you'll help me out. I'm trying to create the absolute cheapest dev monitoring tool on the market, while still being competitive with all the others. This means $3/month plan, while still having monitoring for: Website, REST API, UDP/TCP, ICMP, Heartbeat/CRON, WS/WSS, DNS, Domain Intel/expiry and SSL. Everything with unlimited alerts through webhooks. I'm also taking an unlimited approach to the amount of checks you can have. I'd love to hear your thoughts.

    2025 · exit1.dev · its alternatives →

  15. 15
    Vigil▲11

    Microservices Status Page. Sends alerts to Slack.

    2018 · github.com · its alternatives →

  16. 16

    Website monitoring with instant downtime alerts.

    Jul 2026 · whydown.org · its alternatives →

  17. 17

    Website status monitor with realtime notifications

    Dec 2025 · status.slap.pt · its alternatives →

  18. 18

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

    May 2026 · domainmonitor.samtech.solutions · its alternatives →

  19. 19

    A few months ago I took out my side project - an uptime & SSL monitoring service - from the drawer. I've decided to give it a new life and completely overhauled it, added a lot of new feature, and most importantly, a UI. Highlights - configurable uptime & SSL monitoring - Telegram, Slack, PagerDuty & E-mail notifications (more to come!) - fully-fledged REST API - a responsive, modern & fast UI - monitors are optionally configurable via a single YAML file, or you can choose to use either the UI or the API to maintain them - Cloud-native, distributed as amd64 and arm64 images - Only one…

    2025 · kuvasz-uptime.dev · its alternatives →

  20. 20

    Automated SSL certificate monitoring with expiration alerts, Certificate Transparency discovery, and Slack/Discord/Teams notifications. Prevent downtime with continuous monitoring.

    2022 · haveibeenexpired.com · its alternatives →

  21. 21

    HTTP monitoring with 60s checks & SSL alerts

    May 2026 · api-monitor-production-a5f4.up.railway.app · its alternatives →

  22. 22

    Monitor SSL certs and avoid unexpected downtime

    2025 · its alternatives →

  23. 23

    Monitor your website uptime, SSL, domain — 24/7

    Nov 2025 · prositemonitor.com · its alternatives →

  24. 24
    UpMon▲11

    Uptime & performance monitoring with instant alerts

    2025 · upmon.app · its alternatives →

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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 →