Service comparison

Fly.io vs. Vercel

Fly.io vs. Vercel: uptime, incident frequency and resolution times, head-to-head.

Last 90 days · 100 incidents total · From each provider's official status page

Head-to-head

90-day summary

Uptime over time

Availability across windows

Window Fly.io Vercel Δ
Last 24 hours
98.89%
100.00%
-1.11 pp
Last 7 days
95.68%
99.39%
-3.71 pp
Last 30 days
95.78%
98.60%
-2.82 pp
Last 90 days
95.30%
98.64%
-3.34 pp

Uptime is the share of each window with no incident open on the provider's official status page. Δ is percentage-point difference (Fly.io minus Vercel). Higher is better.

Incidents 90-day

Severity breakdown

  • Fly.io

    77 total

    31 major 46 minor
    • Median resolution

      58m

    • Longest incident

      12h 52m

  • Vercel

    23 total

    9 major 14 minor
    • Median resolution

      49m

    • Longest incident

      6h 54m

Recent activity

Last 5 incidents, side-by-side

  • Fly.io logo

    Fly.io

    • Oct 26

      Packet loss in IAD

      Ongoing

      Minor
    • Oct 25

      MPGv2 IAD control plane is read-only

      16m

      Minor
    • Oct 22

      Degraded Edge Performance

      1h 26m

      Minor
    • Oct 20

      Capacity issues in GRU region

      6h 59m

      Minor
    • Oct 16

      Fly-metrics.net Grafana Dashboard Outage

      1h 15m

      Major
  • Vercel logo

    Vercel

    • Oct 23

      Delays in Logs and Observability data

      1h 1m

      Minor
    • Oct 12

      Increased build and deployment failures

      6h 36m

      Major
    • Oct 10

      Delays in Drains, Observability, and Workflow in Washington (iad1)

      1h 21m

      Major
    • Oct 6

      Vercel Auth login failures for pages with Deployment Protection enabled

      15m

      Major
    • Oct 6

      Elevated Sandbox error rates in Paris (cdg1)

      24m

      Minor

Bottom line

Vercel wins

Vercel edges out on 90-day uptime.

Fly.io posted 95.30% vs. 98.64% for Vercel (Δ -3.34 pp). Incidents: 77 vs. 23 (+54).

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