Oh Dear vs Uptime Kuma
Oh Dear is a European alternative to Uptime Kuma: same uptime monitoring use case, headquartered in Belgium and governed by EU GDPR, while Uptime Kuma (Louis Lam (open source)) is based in Hong Kong.
By the EU Alternatives team Last updated
Monitor website uptime, SSL certificates, broken links, mixed content, and performance from multiple locations. Get instant alerts and maintain site health.
- Jurisdiction
- EU / EEA
- Primary privacy law
- EU GDPR
- US CLOUD Act exposure
- No
- Open source
- No
- Free tier
- No
Self-hosted open-source uptime monitor with checks for websites, APIs, TCP ports, DNS records and Docker containers, over 90 notification channels and built-in status pages. It is free under the MIT licence; you provide your own server. The project is maintained by Hong Kong developer Louis Lam.
- Jurisdiction
- Hong Kong
- GDPR by default
- Requires DPA + TIA
- US CLOUD Act exposure
- Possible
Oh Dear vs Uptime Kuma at a glance
| Oh Dear | Uptime Kuma | |
|---|---|---|
| Headquarters | Belgium | Hong Kong |
| Data jurisdiction | EU / EEA | Hong Kong |
| Primary privacy law | EU GDPR | Requires DPA + transfer assessment |
| US CLOUD Act exposure | No | Possible |
| Best for | Teams that need uptime monitoring built for European data-protection requirements | Teams already invested in the Louis Lam (open source) ecosystem |
Choose Oh Dear if…
- You want a provider governed by a European privacy regime
- GDPR or public-sector data-protection requirements apply to you
- You'd rather back the European tech ecosystem
Stick with Uptime Kuma if…
- You depend on integrations only available in the Louis Lam (open source) ecosystem
- Your organisation has no EU data-residency constraints
- Migration costs outweigh the jurisdiction benefits for now
About Oh Dear
Oh Dear is the all-in-one monitoring tool for your entire website, replacing a stack of single-purpose tools with one unified dashboard. It continuously watches uptime, SSL certificates, broken links, mixed content, Lighthouse performance, and scheduled tasks, catching the issues that quietly erode user trust long before customers file a support ticket.
Beyond simple ping checks, Oh Dear crawls your entire site to surface broken pages, mixed-content warnings, and missing meta tags, while DNS, domain, and blocklist monitors keep you ahead of reputation issues. Alerts route through Slack, email, SMS, Discord, Microsoft Teams, Telegram, PagerDuty, OpsGenie, and webhooks, and public status pages let you communicate incidents the moment they happen.
Key benefits:
- Full-site crawling finds broken pages, mixed content, and SEO issues
- SSL and certificate monitoring with expiry and chain-validation alerts
- Cron job monitoring for scheduled tasks and background workers
- Application health checks for queues, storage, and cache layers
- Lighthouse performance tracking to catch regressions in Core Web Vitals
- DNS, domain, and blocklist monitoring to protect sender reputation
- Public status pages included at no extra cost, replacing ~$100/mo in separate tools
Based in Berlaar, Belgium, Oh Dear is an indie European alternative to stacking Pingdom, Statuspage, PagerDuty, and Screaming Frog. Monitoring runs from Europe West alongside South America East and North America West regions, giving you multi-region verification without the data-residency concerns of US-headquartered vendors.
Rated 4.9/5 on Capterra and 4.7/5 on G2, and trusted by teams at Laravel, IGN, and Takeaway.com. Start free with up to five websites, no credit card required.
Why choose Oh Dear over Uptime Kuma?
The decisive argument is data jurisdiction. Uptime Kuma is headquartered in Hong Kong, which means personal data processed through it can be subject to non-EU legal regimes: the US CLOUD Act, FISA 702, or similar laws depending on the provider. After the 2020 Schrems II ruling, EU organisations must carry out a transfer impact assessment for every such data flow.
Oh Dear removes that overhead. As a Belgium-based provider, it operates under EU GDPR, and data stays inside the EU/EEA by default. For regulated sectors such as health, public administration, and finance, that's not a nice-to-have but a requirement. For everyone else, it's concentration-risk insurance: you avoid depending on a single jurisdiction that can change the rules without warning.