Monitoring & Observability · reliability comparison
Checkly vs Sentry: which is more reliable? (2026)
Checkly is more reliable than Sentry, scoring 91.1 vs 54.9 out of 100. Over the last 90 days Checkly reported 6 incidents and Sentry reported 23, with effective uptime of 99.96% and 98.93% respectively. Checkly resolves incidents faster on average (1h 54m).
Data updated Nov 1, 2026 · How we score
| Metric | Checkly | Sentry |
|---|---|---|
| Reliability score | 91.1 | 54.9 |
| Rank (monitoring & observability tools) | #4 | #13 |
| Uptime (90 days) | 99.96% | 98.93% |
| Incidents (90 days) | 6 | 23 |
| Partial / major outages | 0 | 15 |
| Avg time to resolve | 1h 54m | 2h 21m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Checkly and Sentry differ
- Sentry reported 3.8× as many incidents as Checkly over the last 90 days (23 vs 6).
- Sentry had 15 partial or major outages, compared with 0 for Checkly.
- Checkly fixes problems faster: 1h 54m on average, against 2h 21m for Sentry.
- Checkly's longest incident on record lasted 3h 10m (Oct 7, 2026); Sentry's lasted 6h 18m (Aug 27, 2026).
90-day uptime
Checkly
Sentry
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Checkly incidents
- Degraded performanceNov 1, 2026 · resolved in 1h 40m
- Degraded performanceOct 7, 2026 · resolved in 3h 10m
- Degraded performanceOct 5, 2026 · resolved (duration not published)
- Degraded performanceSep 23, 2026 · resolved in 53m
Performance Degradation for Playwright Check Suites in us-east-1
- Degraded performanceSep 18, 2026 · resolved (duration not published)
- Degraded performanceAug 10, 2026 · resolved (duration not published)
Security Notice: Unauthorized Access via Third-Party Analytics Tool
Recent Sentry incidents
- Degraded performanceOct 21, 2026 · resolved in 21m
Increased latency processing integration webhooks
Affected: Slack, Integration Pipeline
- Major outageOct 21, 2026 · resolved in 1h
- Partial outageOct 20, 2026 · resolved in 3h 18m
- Major outageOct 19, 2026 · resolved in 53m
- Partial outageOct 14, 2026 · resolved in 2h 34m
- Major outageOct 6, 2026 · resolved in 42m
Other monitoring & observability tools to consider
- Rollbar · #1 · 99.98% uptime
- incident.io · #2 · 99.97% uptime
- New Relic · #3 · 99.93% uptime
- UptimeRobot · #5 · 99.93% uptime
See the full most reliable monitoring & observability tools ranking →