Web & Product Analytics · reliability comparison
Fullstory vs Microsoft Clarity: which is more reliable? (2026)
Microsoft Clarity is more reliable than Fullstory, scoring 80.0 vs 73.2 out of 100. Over the last 90 days Fullstory reported 5 incidents and Microsoft Clarity reported 0, with effective uptime of 99.63% and 100% respectively.
Data updated Nov 1, 2026 · How we score
| Metric | Fullstory | Microsoft Clarity |
|---|---|---|
| Reliability score | 73.2 | 80.0 |
| Rank (analytics tools) | #7 | — |
| Uptime (90 days) | 99.63% | 100% |
| Incidents (90 days) | 5 | 0 |
| Partial / major outages | 2 | 0 |
| Avg time to resolve | 5h 38m | — |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 0/100 |
Where Fullstory and Microsoft Clarity differ
- Microsoft Clarity reported no incidents in the last 90 days, while Fullstory reported 5.
- Fullstory had 2 partial or major outages, compared with 0 for Microsoft Clarity.
90-day uptime
Fullstory
Microsoft Clarity
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Fullstory incidents
- Partial outageSep 23, 2026 · resolved in <1m
Failure to load assets during playback for sessions (EU1 Data Center)
- Degraded performanceSep 7, 2026 · resolved in 14h 46m
Delayed Session Data Availability for a Subset of NA1 Data Center Orgs
Affected: Fullstory Web Application, Webhooks & Alerts
- Major outageSep 1, 2026 · resolved in 5h 17m
Multiple Fullstory Services Unavailable (NA1 Data Center)official update ↗
Affected: Data Capture - Web, Data Capture - Native Mobile, API, Fullstory Web Application, Fullstory Web Application, Webhooks & Alerts +4 more
- Degraded performanceAug 18, 2026 · resolved in 2h 27m
Delays for Warehouse Customers in NA1 Data Center
Affected: Fullstory Web Application, Fullstory Web Application, Webhooks & Alerts, Webhooks & Alerts, Anywhere: Warehouse, Anywhere: Warehouse
- InformationalAug 7, 2026 · resolved in <1m
Recent Microsoft Clarity incidents
No incidents reported by Microsoft Clarity in the last 90 days.
Other analytics tools to consider
- Hotjar · #1 · 100% uptime
- Lucky Orange · #2 · 99.98% uptime
- Google Analytics · #3 · 99.89% uptime
- Mixpanel · #4 · 99.84% uptime
See the full most reliable web & product analytics tools ranking →