Promised uptime vs actual

Vendors35Services99

35 vendors · 99 services

Microsoft Azure SLA

Cloud · 5 of 5 services with an SLA · up to 99.995% · checked 13d ago

Official SLACompare

Services

No data99.99%
Azure Blob Storage (Storage Accounts)
Microsoft Azure promises 99.99% uptime, with a 10% credit when it misses; its status page has no history this site can read.
No data99.95%
Azure Functions
Microsoft Azure promises 99.95% uptime, with a 10% credit when it misses; its status page has no history this site can read.
No data99.9%
Azure OpenAI in Foundry Models
Microsoft Azure promises 99.9% uptime, with a 10% credit when it misses; its status page has no history this site can read.
No data99.995%
Azure SQL Database
Microsoft Azure promises 99.995% uptime, with a 10% credit when it misses; its status page has no history this site can read.
No data99.99%
Azure Virtual Machines
Microsoft Azure promises 99.99% uptime, with a 10% credit when it misses; its status page has no history this site can read.

Latest incidents

Status page

Azure publishes post-incident reviews as web pages only, with no machine-readable history, so observed uptime is not computed.

Support response times

Plans
Fastest n/aIncluded for all Azure customers
Basic
No published response targets.
Fastest n/a$29 per month
Developer
Minimal business impact (Sev C): Within eight business hours
Fastest 1 h$100 per month
Standard
Critical business impact (Sev A): Within one hour · Moderate business impact (Sev B): Within four hours · Minimal business impact (Sev C): Within eight business hours
Fastest 1 h$1,000 per month
Professional Direct
Critical business impact (Sev A): Within one hour · Moderate business impact (Sev B): Within two hours · Minimal business impact (Sev C): Within four business hours
Fastest 15 min
Unified Enterprise
Critical business system down (Sev 1): Within 15 mins for Azure, one hour for all other products · Critical business impact (Sev A): Within one hour · Moderate business impact (Sev B): Within two hours · Minimal business impact (Sev C): Within four business hours

SLA changes

Number changedOct 27, 2026
Azure OpenAI in Foundry Models
The SLA on file is now Service Level Agreement for Microsoft Online Services, October 1, 2026, replacing the September 1, 2026 edition.
13 days agoPage
SLA page changedUnverifiedOct 23, 2026
Azure Virtual Machines
The SLA page text changed (6 sentences added, 2 removed); not yet reviewed.
2 weeks agoPage
From the change logMay 1, 2018
Azure Virtual Machines
Availability Zones tier added: VMs across two or more zones get 99.99% (10/25/100% credits). Not present in the March 2018 edition.
8 years agoSource
From the change logMar 15, 2017
Azure Virtual Machines
100% credit tier added below 95% for Availability Set and single-instance VMs. January 2017 edition: Availability Set < 99.95% 10%, < 99% 25% (no 100% tier); March 15, 2017 edition adds '< 95% 100%'.
9 years agoSource
From the change logJan 1, 2017
Azure Virtual Machines
Single-instance VM SLA of 99.9% (premium storage for all disks) first appears. December 2016 edition covered only VMs in an Availability Set (99.95%, credits 10% / 25%).
9 years agoSource
About Microsoft Azure

All Azure SLA figures come from the consolidated 'Service Level Agreement for Microsoft Online Services' September 1, 2026 English WW edition (docx downloaded from the licensing page on 2026-09-23). Unified Enterprise pricing is not published ('See pricing details'). Sev C targets are in business hours, so minutes are null. Change history comes from Microsoft's own archived monthly SLA editions on the same licensing page. The Standard SSD / Standard HDD single-instance tiers are not dated: the late-2020 to 2021 editions sampled did not carry the Azure VM section, so the date they were introduced could not be pinned down.

Microsoft Corporation is an American multinational technology company headquartered in Redmond, Washington. Source

Highest commitment: Azure SQL Database, 99.995% (General Purpose / Business Critical / Premium / Hyperscale, Zone Redundant).

Status history
Azure publishes post-incident reviews as web pages only, with no machine-readable history, so observed uptime is not computed.
Weighted uptime
Status page
azure.status.microsoft/en-us/status/history/
Across Glyph
Company profileAcquisitionsAdvisoriesAwardsBlogsBreachesCalendarCertificationsComplianceComputeDatacentersQuarterlyEmergingFree tiersIncidentsKeynotesLabsLawsuitsLeadersLeadersMarketplacesOpenperksPapersPartnershipsPaydaysPredictionsPricingProblemsProblemsProblemsProblemsQuadrantQuotesRegionsRegionsChangefeedReposSalariesSocialsStandardsStoriesSunsetsTechConfTermsTrainingTrending
Compare with
AWSDigitalOceanGoogle CloudOracle Cloud Infrastructure