Click here to download the Blitz Browser!

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 / animation-worklet

Spec: https://drafts.css-houdini.org/css-animationworklet/ ↗

Runs: Chrome 158.0.8110.0 (wpt@d6658f1eb, 2026-10-17) | Firefox 160.0a1 (wpt@d8b153fad, 2026-10-16) | Safari 254 preview (wpt@51a43ba4a, 2026-10-17) | Ladybird 1.0-c0c17 (wpt@51af97519, 2026-10-17) | Servo Servo 0.7 (wpt@df642c414, 2026-10-17) | Blitz fb8d6c15e (wpt@cd1d8aa5b, 2026-10-17)

Score history

Percentage of subtests passing over time, one master run per day. Every engine's percentage is relative to the same denominator: the total number of subtests known to any engine in the latest runs (so lines are not distorted by tests being added to WPT, and an engine that skips tests is not flattered for it).

1 month3 months6 months1 year2 years4 yearsAll time
0%20%40%60%80%100%Nov 2025Dec 2025Jan 2026Feb 2026Mar 2026Apr 2026May 2026Jun 2026Jul 2026Aug 2026Sep 2026Oct 2026ChromeFirefoxSafariLadybirdServo

Sort: alphabetical | by subtest count

AreaChromeFirefoxSafariLadybirdServoBlitz
Total20.9%18/8620.9%18/8620.9%18/8620.9%18/8620.9%18/860.0%0/86
TestChromeFirefoxSafariLadybirdServoBlitz
Total20.9%18/8620.9%18/8620.9%18/8620.9%18/8620.9%18/86NO DATA
animate-multiple-effects-on-different-targets-via-main-thread.https.htmlFAILFAILFAILFAILFAILNOT RUN
animate-non-accelerated-property.https.htmlFAILFAILFAILFAILFAILNOT RUN
animation-worklet-inside-iframe.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
animator-with-options.https.htmlFAILFAILFAILFAILFAILNOT RUN
cancel-non-accelerated-property.https.htmlFAILFAILFAILFAILFAILNOT RUN
current-time.https.htmlERRORERRORERRORERRORERRORNOT RUN
idlharness.any.html9/209/209/209/209/20NOT RUN
idlharness.any.worker.html9/139/139/139/139/13NOT RUN
inactive-timeline.https.htmlERRORERRORERRORERRORERRORNOT RUN
multiple-effects-on-same-target-driven-by-individual-local-time.https.htmlFAILFAILFAILFAILFAILNOT RUN
playback-rate.https.htmlERRORERRORERRORERRORERRORNOT RUN
scroll-timeline-writing-modes.https.htmlERRORERRORERRORERRORERRORNOT RUN
stateful-animator.https.html0/60/60/60/60/6NOT RUN
worklet-animation-animator-name.https.htmlFAILFAILFAILFAILFAILNOT RUN
worklet-animation-cancel.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-creation.https.html0/80/80/80/80/8NOT RUN
worklet-animation-duration.https.htmlFAILFAILFAILFAILFAILNOT RUN
worklet-animation-get-computed-timing-progress-on-worklet-thread.https.htmlFAILFAILFAILFAILFAILNOT RUN
worklet-animation-get-timing-on-worklet-thread.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-local-time-after-duration.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-local-time-before-start.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-local-time-null-1.https.html0/40/40/40/40/4NOT RUN
worklet-animation-local-time-null-2.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-pause-immediately.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-pause-resume.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-pause.https.htmlERRORERRORERRORERRORERRORNOT RUN
worklet-animation-play.https.html0/20/20/20/20/2NOT RUN
worklet-animation-set-keyframes.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-set-timing.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-start-delay.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-with-effects-from-different-frames.https.htmlFAILFAILFAILFAILFAILNOT RUN
worklet-animation-with-fill-mode.https.htmlERRORERRORERRORERRORERRORNOT RUN
worklet-animation-with-invalid-effect.https.htmlFAILFAILFAILFAILFAILNOT RUN
worklet-animation-with-non-ascii-name.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-with-scroll-timeline-and-display-none.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-with-scroll-timeline-and-overflow-hidden.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-with-scroll-timeline-root-scroller.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-with-scroll-timeline.https.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
worklet-animation-without-target.https.htmlERRORERRORERRORERRORERRORNOT RUN