← All website monitoring tools
Updown.io
Pay-per-check uptime — load €5 credit, get ~50000 checks. Solo-founder favorite.
What it does well
- Pay-per-request pricing model avoids fixed monthly subscription costs.
- Dual-stack monitoring checks both IPv4 and IPv6 addresses for each site.
- Clean, minimalist interface without complex dashboards or feature bloat.
- Provides public, embeddable status pages for transparency with users.
Where it falls short
- No free tier is available; you must purchase credits to use the service.
- Lacks advanced features like transaction monitoring or real user monitoring (RUM).
- Alerting options are basic and lack complex on-call scheduling or escalation policies.
- Does not offer application performance monitoring (APM) for code-level diagnostics.
Alternatives to Updown.io
UptimeRobot
freemiumMost popular free uptime monitor — 50 free monitors at 5-min intervals.
GuardLabs Care
paidAnnual website care + monitoring + monthly health report — for solo founders and small teams who don't want monthly billing complexity.
StatusCake
freemiumLong-running freemium uptime tool — uptime + SSL + domain expiry in one dashboard.
Uptime Kuma
freeSelf-hosted open-source uptime monitor with status pages — Docker one-liner deploy.