Cloud / IaaS Reliability Rankings
All 12 Cloud / IaaS providers ranked by 30-day availability. Independent measurement, no provider affiliation. Refreshed on every page load.
| Rank | Provider | Status | 7d | 30d availability | 90d |
|---|---|---|---|---|---|
| #1 |  AWS EC2 us-east-1 | Operational | 100.00% | | 100.00% |
| #2 | AWS EC2 eu-central-1 | Operational | 100.00% | | 100.00% |
| #3 | AWS EC2 eu-west-1 | Operational | 100.00% | | 100.00% |
| #4 | | Operational | 100.00% | | 100.00% |
| #5 | | Operational | 100.00% | | 100.00% |
| #6 | | Operational | 100.00% | | 100.00% |
| #7 | | Operational | 100.00% | | 100.00% |
| #8 | | Operational | 100.00% | | 100.00% |
| #9 | | Operational | 100.00% | | 100.00% |
| #10 | | Operational | 100.00% | | 100.00% |
| #11 | | Operational | 100.00% | | 100.00% |
| #12 | | Operational | 100.00% | | 100.00% |
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 .