Service comparison

Fly.io vs. Vercel

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

Last 90 days · 102 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
100.00%
100.00%
0.00 pp
Last 7 days
71.33%
100.00%
-28.67 pp
Last 30 days
87.72%
99.80%
-12.08 pp
Last 90 days
93.55%
98.71%
-5.16 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

    79 total

    29 major 50 minor
    • Median resolution

      52m

    • Longest incident

      48h 10m

  • Vercel

    23 total

    9 major 14 minor
    • Median resolution

      47m

    • Longest incident

      6h 54m

Recent activity

Last 5 incidents, side-by-side

  • Fly.io logo

    Fly.io

    • Nov 12

      GitHub connections reset - sign in with GitHub again to restore GitHub deploys

      3h 37m

      Minor
    • Nov 12

      LAX region outage

      2d 10m

      Major
    • Nov 11

      Intermittent errors pushing images to Fly.io Registry

      < 1m

      Minor
    • Nov 6

      IPv6 egress issues on a subset of IAD hosts

      22m

      Minor
    • Nov 4

      Emergency network maintenance on a subset of hosts in ORD

      14m

      Minor
  • Vercel logo

    Vercel

    • Nov 10

      Elevated Sandbox and Blob request latency and errors

      < 1m

      Minor
    • Nov 5

      Build delays and degraded Vercel Dashboard performance

      25m

      Minor
    • 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

Bottom line

Vercel wins

Vercel edges out on 90-day uptime.

Fly.io posted 93.55% vs. 98.71% for Vercel (Δ -5.16 pp). Incidents: 79 vs. 23 (+56).

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