Cloud Providers · reliability comparison
Alibaba Cloud vs Amazon Web Services (AWS): which is more reliable? (2026)
Alibaba Cloud is more reliable than Amazon Web Services (AWS), scoring 100.0 vs 61.8 out of 100. Over the last 90 days Alibaba Cloud reported 0 incidents and Amazon Web Services (AWS) reported 7, with effective uptime of 100% and 99.43% respectively.
Data updated Nov 1, 2026 · How we score
VS
| Metric | Alibaba Cloud | Amazon Web Services (AWS) |
|---|---|---|
| Reliability score | 100.0 | 61.8 |
| Rank (cloud providers) | — | #3 |
| Uptime (90 days) | 100% | 99.43% |
| Incidents (90 days) | 0 | 7 |
| Partial / major outages | 0 | 0 |
| Avg time to resolve | — | 11h 44m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Alibaba Cloud and Amazon Web Services (AWS) differ
- Alibaba Cloud reported no incidents in the last 90 days, while Amazon Web Services (AWS) reported 7.
- Alibaba Cloud's longest outage on record lasted 10h 19m (Apr 21, 2026); Amazon Web Services (AWS)'s lasted 3d (Mar 2, 2026).
90-day uptime
Alibaba Cloud
Amazon Web Services (AWS)
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Alibaba Cloud incidents
No incidents reported by Alibaba Cloud in the last 90 days.
Recent Amazon Web Services (AWS) incidents
- Degraded performanceOct 30, 2026 · resolved in <1m
Affected: apigateway, us-west-2
- Degraded performanceOct 4, 2026 · resolved in 2h 42m
Affected: internetconnectivity, eu-south-2
- Degraded performanceSep 21, 2026 · resolved in 58m
Affected: ec2, us-east-1
- Degraded performanceSep 3, 2026 · resolved in 2h 18m
Affected: multipleservices, us-west-2
- Degraded performanceAug 21, 2026 · resolved in 38m
Affected: connect, ap-northeast-1
- Degraded performanceAug 19, 2026 · resolved in 3h 32m
Affected: ec2, eu-west-2
Other cloud providers to consider
- IBM Cloud · #1 · 100% uptime
- Hetzner Cloud · #2 · 99.58% uptime
- UpCloud · #4 · 99.37% uptime
- Google Cloud · #5 · 98.90% uptime