Root cause
Certificate or TLS
An expired, revoked or misissued certificate.
Incidents per month
October 2025September 2026
5
in 12 months
4
major or critical
1h 21m
median duration
most affected
Incidents
IncidentStarted (UTC)DurationImpactRoot cause
Questions
How common are outages caused by certificate or tls?
5 incidents in the last 12 months across the vendors tracked here were traced to certificate or tls 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.