WPT
This page compares scores on the Web Platform Tests across web engines, using the latest master runs from wpt.fyi and Blitz's own test runner.
Spec: WebVTT: The Web Video Text Tracks Format ↗
Runs: Chrome 155.0.8039.0 (wpt@6ec9fd59f, 2026-09-03) | Firefox 157.0a1 (wpt@6ec9fd59f, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-795e1 (wpt@7e3d005d7, 2026-09-03) | Servo Servo 0.6 (wpt@09159dcb3, 2026-09-02) | Blitz 188486089 (wpt@a95401e4e, 2026-09-02)
Sort areas: alphabetical | by subtest count
| Area | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Total | 100.0%117/117 | 94.9%111/117 | 100.0%117/117 | 70.9%83/117 | 82.1%96/117 | 0.0%0/117 |
| VTTCue | 100.0%36/36 | 94.4%34/36 | 100.0%36/36 | 27.8%10/36 | 58.3%21/36 | 0.0%0/36 |
| VTTRegion | 100.0%11/11 | 90.9%10/11 | 100.0%11/11 | 90.9%10/11 | 90.9%10/11 | 0.0%0/11 |
| Test | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| cue-pseudo-parsing.html | 8/8 | 5/8 | 8/8 | 3/8 | 3/8 | NOT RUN |
| historical.html | 6/6 | 6/6 | 6/6 | 6/6 | 6/6 | NOT RUN |
| idlharness.window.html | 56/56 | 56/56 | 56/56 | 54/56 | 56/56 | NOT RUN |