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: CSS ↗
Runs: Chrome 155.0.8043.0 (wpt@d317428a6, 2026-09-05) | Firefox 157.0a1 (wpt@d317428a6, 2026-09-05) | Safari 251 preview (wpt@c29bd2aee, 2026-09-05) | Ladybird 1.0-62d2b (wpt@6f9e382f6, 2026-09-05) | Servo Servo 0.6 (wpt@2c385f65e, 2026-09-04) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)
Sort areas: alphabetical | by subtest count
| Area | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Total | 97.1%102/105 | 95.2%100/105 | 92.4%97/105 | 57.1%60/105 | 78.1%82/105 | 35.2%37/105 |
| Test | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| bidi-001.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| bidi-002.xht | PASS | FAIL | PASS | FAIL | PASS | FAIL |
| bidi-003.xht | FAIL | FAIL | FAIL | FAIL | FAIL | FAIL |
| bidi-004.xht | FAIL | FAIL | FAIL | FAIL | FAIL | FAIL |
| bidi-005a.xht | PASS | PASS | PASS | FAIL | FAIL | PASS |
| bidi-005b.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| bidi-006a.xht | PASS | PASS | PASS | FAIL | FAIL | PASS |
| bidi-006b.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| bidi-007a.xht | PASS | PASS | PASS | FAIL | FAIL | PASS |
| bidi-007b.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| bidi-008a.xht | PASS | PASS | PASS | FAIL | FAIL | PASS |
| bidi-008b.xht | PASS | PASS | PASS | FAIL | PASS | PASS |
| bidi-009a.xht | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| bidi-009b.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| bidi-010a.xht | PASS | PASS | PASS | FAIL | FAIL | PASS |
| bidi-010b.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| bidi-011.xht | PASS | FAIL | FAIL | FAIL | FAIL | PASS |
| bidi-box-model-001.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-002.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-003.xht | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| bidi-box-model-004.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-005.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-006.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| bidi-box-model-007.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-008.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-009.xht | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| bidi-box-model-010.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-011.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-012.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-013.xht | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| bidi-box-model-014.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-015.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-016.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-017.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-018.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-019.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-020.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-021.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-022.xht | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| bidi-box-model-023.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-024.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-025.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-026.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-027.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-028.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-029.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-030.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-031.xht | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| bidi-box-model-032.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-033.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-034.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-035.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-036.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-037.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-038.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-039.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-040.xht | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| bidi-box-model-041.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-042.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| bidi-box-model-043.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-044.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-box-model-045.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| bidi-breaking-001.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| bidi-breaking-002.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| bidi-breaking-003.xht | FAIL | FAIL | PASS | FAIL | FAIL | FAIL |
| bidi-glyph-mirroring-001.xht | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| bidi-glyph-mirroring-002.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| bidi-inline-001.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| bidi-inline-002.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| direction-001.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| direction-002.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| direction-003.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| direction-applies-to-001.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| direction-applies-to-002.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| direction-applies-to-003.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| direction-applies-to-004.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| direction-applies-to-005.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| direction-applies-to-006.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| direction-applies-to-007.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| direction-applies-to-008.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| direction-applies-to-009.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| direction-applies-to-012.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| direction-applies-to-013.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| direction-applies-to-014.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| direction-applies-to-015.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| line-breaking-bidi-001.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| line-breaking-bidi-002.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| line-breaking-bidi-003.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| unicode-bidi-001.xht | PASS | PASS | PASS | PASS | PASS | FAIL |
| unicode-bidi-002.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| unicode-bidi-003.xht | PASS | PASS | FAIL | FAIL | FAIL | FAIL |
| unicode-bidi-004.xht | PASS | PASS | FAIL | FAIL | FAIL | FAIL |
| unicode-bidi-applies-to-001.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| unicode-bidi-applies-to-002.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| unicode-bidi-applies-to-003.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| unicode-bidi-applies-to-004.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| unicode-bidi-applies-to-005.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| unicode-bidi-applies-to-006.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| unicode-bidi-applies-to-007.xht | PASS | PASS | FAIL | FAIL | FAIL | FAIL |
| unicode-bidi-applies-to-008.xht | PASS | PASS | PASS | FAIL | PASS | FAIL |
| unicode-bidi-applies-to-009.xht | PASS | PASS | FAIL | FAIL | FAIL | FAIL |
| unicode-bidi-applies-to-012.xht | PASS | PASS | FAIL | FAIL | FAIL | FAIL |
| unicode-bidi-applies-to-013.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| unicode-bidi-applies-to-014.xht | PASS | PASS | PASS | PASS | PASS | PASS |
| unicode-bidi-applies-to-015.xht | PASS | PASS | PASS | FAIL | FAIL | FAIL |