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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 / loading / early-hints

Runs: Chrome 158.0.8110.0 (wpt@4c84956f8, 2026-10-18) | Firefox 160.0a1 (wpt@b58866519, 2026-10-18) | Safari 254 preview (wpt@850b36a56, 2026-10-18) | Ladybird 1.0-49a95 (wpt@4c84956f8, 2026-10-18) | Servo Servo 0.7 (wpt@df642c414, 2026-10-17) | Blitz 38ca4e777 (wpt@cd1d8aa5b, 2026-10-18)

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
Total98.0%49/5086.0%43/5037.9%19/5034.0%17/5037.9%19/500.0%0/50
TestChromeFirefoxSafariLadybirdServoBlitz
Total98.0%49/5086.0%43/5037.9%19/5034.0%17/5037.9%19/50NO DATA
404-with-early-hints.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
arbitrary-header-in-early-hints.h2.window.htmlPASSPASSPASSPASSPASSNOT RUN
coep-early-hints-none-final-require-corp.h2.window.htmlPASSFAILPASSFAILFAILNOT RUN
coep-early-hints-require-corp-final-none.h2.window.htmlPASSFAILPASSPASSPASSNOT RUN
csp-early-hints-absent-final-absent.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
csp-early-hints-absent-final-allowed.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
csp-early-hints-absent-final-disallowed.h2.window.htmlPASSPASSPASSPASSPASSNOT RUN
csp-early-hints-allowed-final-absent.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
csp-early-hints-allowed-final-allowed.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
csp-early-hints-allowed-final-disallowed.h2.window.htmlPASSPASSPASSPASSPASSNOT RUN
csp-early-hints-disallowed-final-absent.h2.window.htmlPASSPASSPASSPASSPASSNOT RUN
csp-early-hints-disallowed-final-allowed.h2.window.htmlPASSPASSPASSPASSPASSNOT RUN
csp-early-hints-disallowed-final-disallowed.h2.window.htmlPASSPASSPASSPASSPASSNOT RUN
early-hints-response-time.h2.htmlPASSFAILFAILFAILFAILNOT RUN
embed-object.h2.window.html2/22/20/20/20/2NOT RUN
iframe-coep-disallow.h2.htmlPASSPASSFAILPASSFAILNOT RUN
iframe-pdf.h2.window.htmlPASSFAILPASSFAILPASSNOT RUN
iframe-x-frame-options-deny.h2.window.htmlPASSPASSPASSPASSFAILNOT RUN
invalid-headers-in-early-hints.h2.window.html2/22/20/20/22/2NOT RUN
modulepreload-as-worker-cross-origin.h2.window.htmlPASSPASSPASSPASSPASSNOT RUN
modulepreload-as-worker.h2.window.htmlFAILPASSFAILFAILFAILNOT RUN
modulepreload-cross-origin.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
modulepreload-in-early-hints.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
multiple-early-hints-responses.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
preconnect-in-early-hints.h2.window.htmlPASSPASSPASSFAILPASSNOT RUN
preload-fetch.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
preload-fetchpriority.h2.window.html3/33/30/30/30/3NOT RUN
preload-finished-before-final-response.h2.window.htmlPASSPASSTIMEOUTTIMEOUTTIMEOUTNOT RUN
preload-finished-while-receiving-final-response-body.h2.window.htmlPASSPASSTIMEOUTTIMEOUTTIMEOUTNOT RUN
preload-in-flight-when-consumed.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
preload-initiator-type.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
preload-integrity-mismatch.h2.window.htmlPASSPASSPASSPASSPASSNOT RUN
preload-integrity.h2.window.htmlPASSPASSPASSPASSPASSNOT RUN
preload-with-csp-document-disallow.h2.window.htmlPASSTIMEOUTPASSPASSPASSNOT RUN
preload-with-invalid-as.h2.window.htmlPASSPASSPASSPASSPASSNOT RUN
preload-without-as.h2.window.htmlPASSPASSPASSPASSPASSNOT RUN
preload-without-csp-document-disallow.h2.window.htmlPASSTIMEOUTPASSPASSPASSNOT RUN
redirect-cross-origin-between-early-hints.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
redirect-cross-origin.h2.window.htmlPASSPASSPASSPASSPASSNOT RUN
redirect-same-origin-between-early-hints.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
redirect-same-origin.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
referrer-policy-no-referrer.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
referrer-policy-origin-when-cross-origin.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
referrer-policy-origin.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
referrer-policy-same-origin.h2.window.htmlPASSPASSFAILFAILFAILNOT RUN
referrer-policy-unsafe-url.h2.window.htmlPASSFAILFAILFAILFAILNOT RUN