Root cause
DNS
Name resolution failed or returned the wrong answer.
Incidents per month
October 2025September 2026
15
in 12 months
9
major or critical
1h 30m
median duration
most affected
Incidents
IncidentStarted (UTC)DurationImpactRoot cause
SupabaseDelays in creation of DNS recordsJul 27, 2026, 20:342h 2mMinorDNS
MongoDBAWS Cluster DNS Changes Degraded PerformanceMay 7, 2026, 15:176h 58mMajorDNS
ElasticIssue creating new projects in AWS us-east-1Feb 6, 2026, 01:562h 26mMajorDNS
AWSIncreased Error Rates and LatenciesOct 20, 2025, 07:1115h 42mCriticalDNS
1PasswordIntermittent SSO unavailability due to downstream outageJul 14, 2025, 22:5634mMinorDNS
AtlassianService Disruptions Affecting Atlassian ProductsFeb 14, 2024, 21:571h 35mInformationalDNS
Questions
How common are outages caused by dns?
15 incidents in the last 12 months across the vendors tracked here were traced to dns in the vendors' own words.
How is this cause identified?
From the sentences where the vendor explains why the incident happened, or by hand for landmark postmortems. Symptoms like "elevated error rates" are never counted as a cause.
From vendors' own status pages and disclosures. Times as reported. Logos via logo.dev; trademarks belong to their owners.