Performance and load tests

Quizzy runs real games end to end on its staging site every two weeks: 5, 50, a 50-player knockout, 200 and 1,000 players, with simulated phones plus real Android, iPhone and desktop browsers and a paired TV.

Known limitations

  • In a 1,000-player game, wait about two minutes after everyone has joined before you start. If you start sooner, the first question can reach some phones up to ~12 seconds late; later questions are unaffected. We’re working on it.

    Since Oct 8, 2026

Recent test runs

“Test incomplete” means our test harness couldn’t finish judging that game. It isn’t a failure of the game itself.

Times are shown in UTC.

  1. Oct 8, 2026, 8:47 AM UTC

    • 5 players

      Passed
      • TV scoreboard in sync

    • 50 players

      Passed
      • 294 of 294 answers confirmed
      • 95% of results reached phones within 16 ms
      • TV scoreboard in sync

    • 50 players · knockout

      Passed
      • 144 of 144 answers confirmed
      • 95% of results reached phones within 17 ms
      • TV scoreboard in sync

    • 200 players

      Passed
      • 1,343 of 1,343 answers confirmed
      • 95% of results reached phones within 25 ms
      • TV scoreboard in sync

    • 1,000 players

      Passed
      • 6,965 of 6,965 answers confirmed
      • 95% of results reached phones within 120 ms
      • TV scoreboard in sync

  2. Oct 8, 2026, 6:25 AM UTC

    • 5 players

      Passed
      • TV scoreboard in sync

    • 50 players

      Passed
      • 294 of 294 answers confirmed
      • 95% of results reached phones within 29 ms
      • TV scoreboard in sync

    • 50 players · knockout

      Passed
      • 84 of 84 answers confirmed
      • 95% of results reached phones within 36 ms
      • TV scoreboard in sync

    • 200 players

      Passed
      • 1,344 of 1,344 answers confirmed
      • 95% of results reached phones within 123 ms
      • TV scoreboard in sync

    • 1,000 players

      Test incomplete
      • 4,379 of 4,389 answers confirmed
      • 95% of results reached phones within 64.1 sec
      • TV scoreboard in sync

  3. Oct 8, 2026, 5:38 AM UTC

    • 5 players

      Passed
      • TV scoreboard in sync

    • 50 players

      Passed
      • 294 of 294 answers confirmed
      • 95% of results reached phones within 45 ms
      • TV scoreboard in sync

    • 50 players · knockout

      Passed
      • 138 of 138 answers confirmed
      • 95% of results reached phones within 20 ms
      • TV scoreboard in sync

    • 200 players

      Passed
      • 1,344 of 1,344 answers confirmed
      • 95% of results reached phones within 91 ms
      • TV scoreboard in sync

    • 1,000 players

      Test incomplete
      • 6,957 of 6,957 answers confirmed
      • 95% of results reached phones within 228 ms
      • TV out of sync

  4. Oct 8, 2026, 4:13 AM UTC

    • 5 players

      Passed
      • TV scoreboard in sync

    • 50 players

      Passed
      • 294 of 294 answers confirmed
      • 95% of results reached phones within 26 ms
      • TV scoreboard in sync

    • 50 players · knockout

      Passed
      • 126 of 126 answers confirmed
      • 95% of results reached phones within 23 ms
      • TV scoreboard in sync

    • 200 players

      Passed
      • 1,344 of 1,344 answers confirmed
      • 95% of results reached phones within 37 ms
      • TV scoreboard in sync

    • 1,000 players

      Test incomplete
      • 6,303 of 6,304 answers confirmed
      • 95% of results reached phones within 8.5 sec
      • TV out of sync

  5. Oct 8, 2026, 3:20 AM UTC

    • 5 players

      Passed
      • TV scoreboard in sync

    • 50 players

      Passed
      • 294 of 294 answers confirmed
      • 95% of results reached phones within 12 ms
      • TV scoreboard in sync

    • 50 players · knockout

      Passed
      • 101 of 101 answers confirmed
      • 95% of results reached phones within 16 ms
      • TV scoreboard in sync

    • 200 players

      Passed
      • 1,343 of 1,343 answers confirmed
      • 95% of results reached phones within 29 ms
      • TV scoreboard in sync

    • 1,000 players

      Test incomplete
      • 5,765 of 5,768 answers confirmed
      • 95% of results reached phones within 26.2 sec
      • TV scoreboard in sync

  6. Oct 8, 2026, 12:21 AM UTC

    • 5 players

      Passed
      • TV scoreboard in sync

    • 50 players

      Test incomplete

    • 50 players · knockout

      Passed
      • 110 of 110 answers confirmed
      • 95% of results reached phones within 26 ms
      • TV scoreboard in sync

    • 200 players

      Test incomplete

    • 1,000 players

      Test incomplete
      • 6,941 of 6,941 answers confirmed
      • 95% of results reached phones within 2.7 sec
      • TV scoreboard in sync

  7. Oct 7, 2026, 9:32 PM UTC

    • 5 players

      Passed
      • TV scoreboard in sync

    • 50 players

      Passed
      • 294 of 294 answers confirmed
      • 95% of results reached phones within 20 ms
      • TV scoreboard in sync

    • 50 players · knockout

      Passed
      • 46 of 46 answers confirmed
      • 95% of results reached phones within 30 ms
      • TV scoreboard in sync

    • 200 players

      Passed
      • 1,344 of 1,344 answers confirmed
      • 95% of results reached phones within 35 ms
      • TV scoreboard in sync

    • 1,000 players

      Test incomplete
      • 6,926 of 6,926 answers confirmed
      • 95% of results reached phones within 177 ms
      • TV out of sync

Fixed

  • A paired TV could stop updating its scoreboard in very large games.

    Fixed on Oct 8, 2026

  • Reloading the host screen mid-question no longer ends the question early.

    Fixed on Oct 8, 2026

  • Reloading the host screen mid-game no longer loses the game.

    Fixed on Oct 7, 2026

← Back to Quizzy.earth