Vendor Reliability Hub
Provider status-observation and incident-notice consistency across 1902 monitored cloud services.
Updated Nov 14, 2026 09:42 UTC · 411 source-qualified records · 1,491 provisional
337
Grade A vendors
31
Grade B
43
Grade C–F
1,491
Provisional
| Service | Grade | Avg Observation→Notice | Incident Notices (90d) | Notice Match |
|---|---|---|---|---|
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 2 | — |
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Provisional | — | 5 | — |
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Provisional | — | 0 | — |
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Provisional | — | 2 | — |
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Provisional | — | 1 | — |
AWS
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Provisional | — | 24 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 1 | — |
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Provisional | — | 11 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 2 | — |
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Provisional | — | 0 | — |
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Provisional | — | 2 | — |
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Provisional | — | 2 | — |
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Provisional | — | 0 | — |
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Provisional | — | 5 | — |
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Provisional | — | 1 | — |
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Provisional | — | 0 | — |
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Provisional | — | 2 | — |
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Provisional | — | 1 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 2 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 1 | — |
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Provisional | — | 12 | — |
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Provisional | — | 2 | — |
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Provisional | — | 0 | — |
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Provisional | — | 2 | — |
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Provisional | — | 0 | — |
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Provisional | — | 0 | — |
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Provisional | — | 2 | — |
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Provisional | — | 3 | — |
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Provisional | — | 1 | — |
How we grade transparency
Grades summarize consistency between two records from an official provider source: when ServiceAlert observed an operational-to-disrupted status change and the incident-notice time reported by that source. The observation timestamp is a polling time, not the provider’s exact change time or an independent outage detection. Small or incomplete samples are shown as Provisional.
See also: status reliability observations and source-backed SLA evidence.