Cloud Storage & Office Suites · reliability comparison
Backblaze vs Proton Drive: which is more reliable? (2026)
Backblaze and Proton Drive are effectively tied on reliability (76.7 vs 77.0). Over the last 90 days Backblaze reported 2 incidents and Proton Drive reported 3, with effective uptime of 99.86% and 99.65% respectively. Proton Drive resolves incidents faster on average (3h 11m).
Data updated Nov 2, 2026 · How we score
| Metric | Backblaze | Proton Drive |
|---|---|---|
| Reliability score | 76.7 | 77.0 |
| Rank (cloud storage & office suites) | #8 | #7 |
| Uptime (90 days) | 99.86% | 99.65% |
| Incidents (90 days) | 2 | 3 |
| Partial / major outages | 0 | 3 |
| Avg time to resolve | 19h 55m | 3h 11m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Backblaze and Proton Drive differ
- Proton Drive reported 50% more incidents than Backblaze over the last 90 days (3 vs 2).
- Proton Drive had 3 partial or major outages, compared with 0 for Backblaze.
- Proton Drive fixes problems faster: 3h 11m on average, against 19h 55m for Backblaze (6.2× quicker).
- Backblaze's longest incident on record lasted 19h 55m (Oct 30, 2026); Proton Drive's lasted 4h 27m (Jan 16, 2026).
90-day uptime
Backblaze
Proton Drive
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Backblaze incidents
- Degraded performanceOct 30, 2026 · resolved (duration not published)
New incident: "Customers in the US east region might be facing issues with downloads"
- Degraded performanceOct 30, 2026 · resolved in 19h 55m
- MaintenanceOct 28, 2026 · resolved (duration not published)
Scheduled Maintenance: US West Network Maintenance, October 28, 2026
- MaintenanceOct 28, 2026 · resolved (duration not published)
Scheduled Maintenance: EU Central Network Maintenance October 28, 2026
- MaintenanceOct 21, 2026 · resolved (duration not published)
Scheduled Maintenance: US West Network Maintenance, October 21, 2026
- MaintenanceOct 8, 2026 · resolved (duration not published)
Scheduled Maintenance: US East Region Network Maintenance Oct 14, 2026
Recent Proton Drive incidents
- Major outageOct 2, 2026 · resolved in 3h 17m
MacOS Certification Errors on the Proton Meet & Proton Mail appsofficial update ↗
Affected: Mobile and Desktop Apps, Desktop Apps
- Partial outageSep 1, 2026 · resolved in 4h 8m
Service disruptionofficial update ↗
Affected: Web Application, Free servers, Mobile Apps, Web Application, Mobile Apps, Web Application +20 more
- Major outageAug 26, 2026 · resolved in 2h 9m
Global Outageofficial update ↗
Affected: Web Application, Free servers, Mobile Apps, Web Application, Mobile Apps, Incoming Mail +18 more
Other cloud storage & office suites to consider
- Tresorit · #1 · 100% uptime
- SugarSync · #2 · 100% uptime
- ShareFile · #3 · 99.99% uptime
- Egnyte · #4 · 99.94% uptime
See the full most reliable cloud storage & office suites ranking →