Fly.io vs Vercel
Reliability comparison based on uptime, incident history, and mean time to recovery. Updated daily.
|
F
Fly.io
|
 Vercel
|
|
|---|---|---|
| Current Status | Operational | Operational |
| Uptime (30d) | 89.698% | 94.233% Best |
| Uptime (90d) | 90.074% | 94.177% Best |
| MTTR | 3.8 hrs | 2.8 hrs Best |
| Incidents (30d) | 17 | 14 Best |
| Incidents (90d) | 69 | 45 Best |
| Reliability Score | 55.9/100 | 64.0/100 Best |
Recent Incidents
Fly.io
Increased API latency
minor
Vercel
Vercel Community temporarily unavailable
maintenance
Vercel
Timeouts loading charts and observability data in Dashboard
major
Vercel
Dashboard authentication errors
critical
Fly.io
High number of 5XX on the Machines API and dashboard
major
Fly.io
Egress IPv6 issues in BOM
minor
Vercel
Increased invocation failures for Hobby Team functions
minor
Vercel
Errors logging in with GitHub
minor
Vercel
GitHub-linked deployments and authentication affected
minor
Fly.io
App creation failing
minor
Fly.io
Edge proxy issues
minor
Vercel
SAML Single Sign-On (SSO) errors
major
Vercel
Missing Build CPU Minutes Usage Data
minor
Vercel
Errors accessing teams that require 2FA
minor
Fly.io
Partial outage in SJC
major
Fly.io
Some DFW hosts offline
minor
Vercel
Increased Build failure rates
minor
Vercel
Erroneous budget notifications
none
Fly.io
Registry performance issues
minor
Fly.io
Delays starting Depot Builders in IAD
minor
Frequently Asked Questions
Which is more reliable, Fly.io or Vercel?
Based on our monitoring data, Vercel is currently more reliable than Fly.io. Vercel has a reliability score of 64.0/100 compared to Fly.io's 55.9/100. This score factors in uptime percentage, mean time to recovery, incident frequency, and consistency. Monitor both services with Happy Uptime for real-time alerts.
Which has better uptime, Fly.io or Vercel?
Over the last 30 days, Vercel has a higher uptime of 94.233% compared to Fly.io's 89.698%. We check both services every 5 minutes from multiple global regions.
Is Fly.io more stable than Vercel?
Vercel has been more stable over the past 90 days with 45 incidents compared to Fly.io's 69 incidents. Fewer incidents generally indicates a more stable service. Use Happy Uptime to track both services and get AI-powered incident analysis.
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