Service comparison

Vercel vs. Fly.io

Vercel vs. Fly.io — reliability, API availability, and incident frequency head-to-head.

Last 90 days · 106 incidents total · Data via Pulsetic monitoring

Head-to-head

90-day summary

Vercel

vercel.com

Online
- 90-day uptime
  
  95.23%
- Incidents (90d)
  
  46
  
  7 major · 39 minor
- Median resolution
  
  55m
- Longest outage
  
  12h 39m
View status page →
Fly.io

fly.io

Online
- 90-day uptime
  
  89.18%
- Incidents (90d)
  
  60
  
  26 major · 34 minor
- Median resolution
  
  1h 39m
- Longest outage
  
  46h 6m
View status page →

Uptime over time

Availability across windows

Window	Vercel	Fly.io	Δ
Last 24 hours	99.31%	78.13%	+21.18 pp
Last 7 days	99.90%	92.06%	+7.84 pp
Last 30 days	98.62%	91.78%	+6.84 pp
Last 90 days	95.23%	89.18%	+6.05 pp

Δ is percentage-point difference (Vercel minus Fly.io). Higher is better.

Incidents 90-day

Severity breakdown

Vercel

46 total

7 major 39 minor
- Median resolution
  
  55m
- Longest outage
  
  12h 39m
Fly.io

60 total

26 major 34 minor
- Median resolution
  
  1h 39m
- Longest outage
  
  46h 6m

Recent activity

Last 5 incidents, side-by-side

Vercel
- Jun 23
  
  Degraded Domain Search in Vercel Dashboard
  
  10m
  
  Minor
- Jun 19
  
  Resolved: Elevated ERR_STREAM_PREMATURE_CLOSE errors in Vercel Functions
  
  < 1m
  
  Minor
- Jun 16
  
  Partial disruption of Observability, Analytics, Firewall, and Usage in dashboard
  
  2h
  
  Minor
- Jun 14
  
  Elevated latency and errors in FRA1 Vercel Region (Frankfurt, Germany)
  
  4h 20m
  
  Major
- Jun 9
  
  Elevated Build Errors for Secure Compute/Static IPs Projects
  
  36m
  
  Major
View all incidents →
Fly.io
- Jun 24
  
  Degraded networking in North America
  
  5h 15m
  
  Minor
- Jun 22
  
  Network issues in SIN, NRT
  
  1h 40m
  
  Major
- Jun 22
  
  SIN, NRT network issues
  
  2h 38m
  
  Major
- Jun 19
  
  Log search unavailable
  
  3h 47m
  
  Minor
- Jun 17
  
  Network Issues in SIN
  
  1h 33m
  
  Major
View all incidents →

Bottom line

Vercel wins

Vercel edges out on 90-day uptime.

Vercel posted 95.23% vs. 89.18% for Fly.io (Δ +6.05 pp). Incidents: 46 vs. 60 (-14).

Also compare

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