Service comparison

Fly.io vs. Vercel

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

Last 90 days · 104 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
98.47%
99.73%
-1.26 pp
Last 30 days
96.68%
99.20%
-2.52 pp
Last 90 days
95.79%
97.36%
-1.57 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

    73 total

    29 major 44 minor
    • Median resolution

      56m

    • Longest incident

      9h 59m

  • Vercel

    31 total

    10 major 21 minor
    • Median resolution

      55m

    • Longest incident

      22h 48m

Recent activity

Last 5 incidents, side-by-side

  • Fly.io logo

    Fly.io

    • Oct 3

      Partial outage in AMS

      56m

      Major
    • Oct 1

      Delayed ingestion of app logs

      1h 38m

      Minor
    • Sep 29

      GRU Networking Issues

      1h 42m

      Minor
    • Sep 29

      GRU Networking Issues

      < 1m

      Major
    • Sep 26

      Network outage in AMS region

      17m

      Major
  • Vercel logo

    Vercel

    • Sep 28

      Build failures and 500 errors for functions using Edge runtime

      27m

      Minor
    • Sep 18

      Deployment stuck in initializing state

      55m

      Minor
    • Sep 18

      Elevated Errors Triggering Deployments

      49m

      Major
    • Sep 18

      Elevated Vercel KMS and Connect Errors

      < 1m

      Minor
    • Sep 17

      Failures delivering Logs to Drains

      2h

      Minor

Bottom line

Vercel wins

Vercel edges out on 90-day uptime.

Fly.io posted 95.79% vs. 97.36% for Vercel (Δ -1.57 pp). Incidents: 73 vs. 31 (+42).

Where would your uptime rank against Vercel?

Pulsetic is website uptime monitoring. Aim it at a website you run and build a 90-day record of your own.

10 monitors free, email alerts on failure and recovery. No credit card.