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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 / infrastructure / reftest

Runs: Chrome 158.0.8110.0 (wpt@850b36a56, 2026-10-18) | Firefox 160.0a1 (wpt@b58866519, 2026-10-18) | Safari 254 preview (wpt@850b36a56, 2026-10-18) | Ladybird 1.0-9ca42 (wpt@850b36a56, 2026-10-18) | 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
Total67.3%33/4963.2%31/4955.1%27/4955.1%27/4955.1%27/490.0%0/49
legacy77.7%7/977.7%7/977.7%7/977.7%7/977.7%7/90.0%0/9
TestChromeFirefoxSafariLadybirdServoBlitz
Total64.9%26/4060.0%24/4050.0%20/4050.0%20/4050.0%20/40NO DATA
devicePixelRatio.htmlPASSPASSPASSPASSPASSNOT RUN
green-ref.htmlPASSPASSPASSPASSPASSNOT RUN
reftest.https.htmlPASSPASSPASSPASSPASSNOT RUN
reftest.www.sub.htmlPASSPASSPASSPASSPASSNOT RUN
reftest_fuzzy_1.htmlPASSPASSPASSPASSPASSNOT RUN
reftest_fuzzy_no_differences.htmlPASSPASSPASSPASSPASSNOT RUN
reftest_fuzzy_no_differences_1.htmlPASSPASSPASSPASSPASSNOT RUN
reftest_match-print.htmlPASSPASSNOT RUNNOT RUNNOT RUNNOT RUN
reftest_match.htmlPASSPASSPASSPASSPASSNOT RUN
reftest_match_and_mismatch-0.htmlFAILFAILFAILFAILFAILNOT RUN
reftest_match_and_mismatch-1.htmlFAILFAILFAILFAILFAILNOT RUN
reftest_match_and_mismatch-2.htmlPASSPASSPASSPASSPASSNOT RUN
reftest_match_and_mismatch-3.htmlPASSPASSPASSPASSPASSNOT RUN
reftest_match_and_mismatch-4.htmlFAILFAILFAILFAILFAILNOT RUN
reftest_match_and_mismatch-5.htmlFAILFAILFAILFAILFAILNOT RUN
reftest_match_and_mismatch-6.htmlFAILFAILFAILFAILFAILNOT RUN
reftest_match_and_mismatch-7.htmlFAILFAILFAILFAILFAILNOT RUN
reftest_match_fail-print.htmlFAILFAILNOT RUNNOT RUNNOT RUNNOT RUN
reftest_match_fail.htmlFAILFAILFAILFAILFAILNOT RUN
reftest_mismatch-num-pages-print.htmlPASSPASSNOT RUNNOT RUNNOT RUNNOT RUN
reftest_mismatch-print.htmlPASSPASSNOT RUNNOT RUNNOT RUNNOT RUN
reftest_mismatch.htmlPASSPASSPASSPASSPASSNOT RUN
reftest_mismatch_fail-print.htmlFAILFAILNOT RUNNOT RUNNOT RUNNOT RUN
reftest_mismatch_fail.htmlFAILFAILFAILFAILFAILNOT RUN
reftest_mismatch_page_margins-print.htmlPASSPASSNOT RUNNOT RUNNOT RUNNOT RUN
reftest_multiple_match-0.htmlPASSPASSPASSPASSPASSNOT RUN
reftest_multiple_match-1.htmlPASSPASSPASSPASSPASSNOT RUN
reftest_multiple_mismatch-0.htmlFAILFAILFAILFAILFAILNOT RUN
reftest_multiple_mismatch-1.htmlFAILFAILFAILFAILFAILNOT RUN
reftest_ref_timeout.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
reftest_timeout.htmlTIMEOUTTIMEOUTTIMEOUTTIMEOUTTIMEOUTNOT RUN
reftest_wait_0-print.htmlPASSPASSNOT RUNNOT RUNNOT RUNNOT RUN
reftest_wait_0.htmlPASSPASSPASSPASSPASSNOT RUN
reftest_wait_TestRendered.htmlPASSPASSPASSPASSPASSNOT RUN
reftest_window_load.htmlPASSPASSPASSPASSPASSNOT RUN
size.htmlPASSPASSPASSPASSPASSNOT RUN
testdriver-iframe.sub.htmlPASSPASSPASSPASSPASSNOT RUN
testdriver-in-ref.htmlPASSTIMEOUTPASSPASSPASSNOT RUN
testdriver-print.htmlPASSSKIPNOT RUNNOT RUNNOT RUNNOT RUN
testdriver.htmlPASSPASSPASSPASSPASSNOT RUN