UptimeRobot
Free plan ($0): 50 uptime monitors checked every 5 minutes.
Dev Tools
What you get
50 website, API, keyword, port, ping, DNS and SSL monitors checked every 5 minutes, with basic status pages.
How to get it
Register on uptimerobot.com/pricing.
What it requires
No credit card required.
The catch
UptimeRobot pitches Free for hobby and non-profit projects; checks run only every 5 minutes, with 5 integrations and no team seats.
From the official page · checked Oct 23, 2026