Code Hosting & CI/CD · reliability comparison
GitHub Actions vs Semaphore: which is more reliable? (2026)
GitHub Actions and Semaphore are effectively tied on reliability (55.6 vs 54.9). Over the last 90 days GitHub Actions reported 20 incidents and Semaphore reported 22, with effective uptime of 98.91% and 98.92% respectively. GitHub Actions resolves incidents faster on average (2h 21m).
Data updated Nov 1, 2026 · How we score
| Metric | GitHub Actions | Semaphore |
|---|---|---|
| Reliability score | 55.6 | 54.9 |
| Rank (code hosting & CI platforms) | #9 | #10 |
| Uptime (90 days) | 98.91% | 98.92% |
| Incidents (90 days) | 20 | 22 |
| Partial / major outages | 8 | 6 |
| Avg time to resolve | 2h 21m | 4h 2m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where GitHub Actions and Semaphore differ
- Semaphore reported 10% more incidents than GitHub Actions over the last 90 days (22 vs 20).
- GitHub Actions had 8 partial or major outages, compared with 6 for Semaphore.
- GitHub Actions fixes problems faster: 2h 21m on average, against 4h 2m for Semaphore.
- GitHub Actions's longest outage on record lasted 4h 30m (Oct 21, 2026); Semaphore's lasted 10h 5m (Aug 31, 2026).
90-day uptime
GitHub Actions
Semaphore
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent GitHub Actions incidents
- Partial outageOct 30, 2026 · resolved in 1h 33m
Incident with Actions, Pages, and Webhooks
Affected: Webhooks, Actions, Pages
- Degraded performanceOct 26, 2026 · resolved in 9m
Incident with Actions, Issues, API Requests and Pull Requests
Affected: API Requests, Issues, Pull Requests, Actions
- Degraded performanceOct 23, 2026 · resolved in 36m
Delayed Actions status check results
Affected: Actions
- Degraded performanceOct 22, 2026 · resolved in 11h 2m
Affected: API Requests, Issues, Pull Requests, Actions, Packages
- Degraded performanceOct 22, 2026 · resolved in 1h 1m
Affected: Actions
- Major outageOct 21, 2026 · resolved in 4h 30m
Delays for Pull Requests and Webhook deliveriesofficial update ↗
Affected: Webhooks, Pull Requests, Actions
Recent Semaphore incidents
- Degraded performanceOct 29, 2026 · resolved in 1h 25m
Affected: Semaphore
- Degraded performanceOct 26, 2026 · resolved in 3h 14m
Affected: Semaphore
- Degraded performanceOct 26, 2026 · resolved in 2h 41m
Affected: Semaphore
- Degraded performanceOct 22, 2026 · resolved in 2h 15m
Affected: Semaphore
- Degraded performanceOct 21, 2026 · resolved in 3h 47m
Affected: Semaphore
- InformationalOct 20, 2026 · resolved in 2h 1m
Affected: Semaphore
Other code hosting & CI platforms to consider
- Bitrise · #1 · 99.90% uptime
- Depot · #2 · 99.89% uptime
- GitLab · #3 · 100% uptime
- Bitbucket · #4 · 99.74% uptime
See the full most reliable code hosting & ci/cd platforms ranking →