Cloud / IaaS Reliability Rankings
All 15 Cloud / IaaS providers ranked by 30-day availability. Independent measurement, no provider affiliation. Refreshed on every page load.
| Rank | Provider | Status | 7d | 30d 30d availability | 30d downtime | 90d |
|---|---|---|---|---|---|---|
| Tied for 1 |
|
Operational | 100.00% |
|
0 min | 100.00% |
| Tied for 1 |
|
Operational | 100.00% |
|
0 min | 100.00% |
| Tied for 1 |
|
Operational | 100.00% |
|
0 min | 100.00% |
| Tied for 1 |
|
Operational | 100.00% |
|
0 min | 100.00% |
| Tied for 1 |
|
Operational | 100.00% |
|
0 min | 100.00% |
| Tied for 1 |
|
Operational | 100.00% |
|
0 min | 100.00% |
| Tied for 1 |
|
Operational | 100.00% |
|
0 min | 100.00% |
| Tied for 1 |
|
Operational | 100.00% |
|
0 min | 100.00% |
| Tied for 1 |
|
Operational | 100.00% |
|
0 min | 100.00% |
| Tied for 1 |
|
Operational | 100.00% |
|
0 min | 100.00% |
| Tied for 1 |
|
Operational | 100.00% |
|
0 min | 100.00% |
| #12 |
|
Operational | 100.00% |
|
0 min+1 min degraded | 99.99% |
| Tied for 13 |
|
Operational | 99.98% |
|
4 min+3 min degraded | 99.98% |
| Tied for 13 |
|
Operational | 99.97% |
|
4 min+4 min degraded | 99.98% |
| #15 |
|
Operational | 100.00% |
|
1 h 39 min+7 min degraded | 99.83% |
What does this measure?
Independent probes in five locations measure each service at per-check cadences: HTTP every minute, DNS every five minutes, TLS once an hour, storage every five to ten minutes. A minute is "up" only when a strict majority of reporting probes vote up; minutes with fewer than three reporting probes are excluded from the denominator. The 30-day availability above is the share of measured minutes flagged "up". Read the full methodology .