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.
wpt / css / selectors / selectors-4
Spec: Selectors ↗
Runs: Chrome 155.0.8041.0 (wpt@2c385f65e, 2026-09-04) | Firefox 157.0a1 (wpt@2c385f65e, 2026-09-04) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-a7825 (wpt@2c385f65e, 2026-09-04) | Servo Servo 0.6 (wpt@7e3d005d7, 2026-09-03) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)
Sort areas: alphabetical | by subtest count
| Area | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Total | 100.0%39/39 | 89.7%35/39 | 97.4%38/39 | 94.9%37/39 | 92.3%36/39 | 17.9%7/39 |
| Test | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| details-open-pseudo-001.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| details-open-pseudo-002.html | PASS | PASS | PASS | FAIL | PASS | FAIL |
| details-open-pseudo-003.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-000.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-001.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-002.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-003.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-004.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-005.html | PASS | PASS | PASS | PASS | PASS | PASS |
| lang-006.html | PASS | PASS | PASS | PASS | PASS | PASS |
| lang-007.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-008.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-009.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-010.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-011.html | PASS | PASS | PASS | PASS | FAIL | FAIL |
| lang-012.html | PASS | PASS | PASS | PASS | FAIL | FAIL |
| lang-013.html | PASS | PASS | PASS | PASS | PASS | PASS |
| lang-014.html | PASS | PASS | PASS | PASS | PASS | PASS |
| lang-015.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-016.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-017.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-018.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-019.html | PASS | PASS | PASS | PASS | PASS | PASS |
| lang-020.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-021.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-022.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-023.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-024.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-025.html | PASS | PASS | PASS | PASS | PASS | FAIL |
| lang-singleton-subtag-matching.html | 10/10 | 6/10 | 9/10 | 9/10 | 9/10 | 2/10 |