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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 / speculation-rules / prefetch

Spec: Speculation Rules ↗

Runs: Chrome 155.0.8039.0 (wpt@6ec9fd59f, 2026-09-03) | Firefox 157.0a1 (wpt@6ec9fd59f, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-795e1 (wpt@7e3d005d7, 2026-09-03) | Servo Servo 0.6 (wpt@09159dcb3, 2026-09-02) | Blitz 188486089 (wpt@a95401e4e, 2026-09-02)

Sort areas: alphabetical | by subtest count

AreaChromeFirefoxSafariLadybirdServoBlitz
Total88.5%216/24434.8%85/24460.2%147/2440.0%0/2440.0%0/2440.0%0/244
anonymous0.0%0/20.0%0/20.0%0/20.0%0/20.0%0/20.0%0/2
client-hints100.0%14/1464.3%9/1464.3%9/140.0%0/140.0%0/140.0%0/14
no-vary-search100.0%58/5827.6%16/5834.5%20/580.0%0/580.0%0/580.0%0/58
tentative70.7%29/419.8%4/4119.5%8/410.0%0/410.0%0/410.0%0/41
TestChromeFirefoxSafariLadybirdServoBlitz
clear-prefetch-cache-after-clear-site-data-cache.https.html2/22/21/20/20/2NOT RUN
cross-origin-cookies.https.htmlPASSFAILFAILERRORERRORNOT RUN
different-initiators-2.https.htmlPASSPASSPASSERRORERRORNOT RUN
different-initiators.sub.https.html?cross-site-1PASSPASSPASSERRORERRORNOT RUN
different-initiators.sub.https.html?cross-site-2PASSPASSFAILERRORERRORNOT RUN
different-initiators.sub.https.html?same-sitePASSPASSFAILERRORERRORNOT RUN
document-rules-details-element.https.html2/22/22/20/20/2NOT RUN
document-rules.https.html?include=andPASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=baseURLChangedByBaseElementPASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=baseURLChangedBySameDocumentNavigationPASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=defaultPredicatePASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=hrefMatchesPASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=immediateMutationPASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=invalidPredicatePASSPASSPASSERRORERRORNOT RUN
document-rules.https.html?include=linkHrefChangedPASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=linkInShadowTreePASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=linkToSelfFragmentPASSPASSPASSERRORERRORNOT RUN
document-rules.https.html?include=newRuleSetAddedPASSPASSPASSERRORERRORNOT RUN
document-rules.https.html?include=notPASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=orPASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=selectorMatchesPASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=selectorMatchesDisplayLockedPASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=selectorMatchesDisplayNonePASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=selectorMatchesScopingRootPASSFAILPASSERRORERRORNOT RUN
document-rules.https.html?include=unslottedLinkPASSPASSPASSERRORERRORNOT RUN
duplicate-urls.https.htmlPASSPASSPASSERRORERRORNOT RUN
fragment.https.htmlPASSFAILPASSERRORERRORNOT RUN
implicit-source.https.htmlPASSFAILPASSERRORERRORNOT RUN
initiators-a-element.sub.https.html?cross-site0/20/20/20/20/2NOT RUN
initiators-a-element.sub.https.html?same-site2/20/22/20/20/2NOT RUN
initiators-iframe-location-href.sub.https.html?cross-sitePASSPASSPASSERRORERRORNOT RUN
initiators-iframe-location-href.sub.https.html?same-sitePASSPASSPASSERRORERRORNOT RUN
initiators-window-open.sub.https.html?cross-site0/20/20/20/20/2NOT RUN
initiators-window-open.sub.https.html?same-site2/20/22/20/20/2NOT RUN
inline-speculation-rules-after-stylesheet.https.htmlPASSFAILPASSERRORERRORNOT RUN
multiple-url.https.htmlPASSPASSPASSERRORERRORNOT RUN
mutate-rules.https.html3/32/33/30/30/3NOT RUN
navigation-timing-delivery-type.https.html?prefetch=false&bypass_cache=falsePASSFAILPASSERRORERRORNOT RUN
navigation-timing-delivery-type.https.html?prefetch=false&bypass_cache=truePASSFAILPASSERRORERRORNOT RUN
navigation-timing-delivery-type.https.html?prefetch=true&bypass_cache=falsePASSFAILPASSERRORERRORNOT RUN
navigation-timing-delivery-type.https.html?prefetch=true&bypass_cache=truePASSFAILPASSERRORERRORNOT RUN
navigation-timing-requestStart-responseStart.https.html?include=afterResponsePASSFAILPASSERRORERRORNOT RUN
navigation-timing-requestStart-responseStart.https.html?include=noPrefetchPASSPASSPASSERRORERRORNOT RUN
navigation-timing-requestStart-responseStart.https.html?include=waitingForRedirectPASSFAILPASSERRORERRORNOT RUN
navigation-timing-requestStart-responseStart.https.html?include=waitingForResponsePASSFAILPASSERRORERRORNOT RUN
navigation-timing-sizes.https.html?bypass_cache=truePASSPASSPASSERRORERRORNOT RUN
navigation-timing-sizes.https.html?defaultPASSPASSPASSERRORERRORNOT RUN
navigation-timing-sizes.https.html?prefetch=truePASSFAILPASSERRORERRORNOT RUN
navigation-timing-sizes.https.html?prefetch=true&bypass_cache=truePASSFAILPASSERRORERRORNOT RUN
no-http-cache-interference.https.htmlPASSPASSPASSERRORERRORNOT RUN
no-prefetch-for-post.https.htmlPASSPASSPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=BaseCasePASSFAILPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=CSPExemptionPASSFAILPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=EmptyRuleSetPASSPASSPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=FailCORSPASSPASSPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=FailToParseRuleSetPASSPASSPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=FailToParseSpeculationRulesHeaderPASSPASSPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=FollowRedirectPASSFAILPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=InnerListInSpeculationRulesHeaderPASSPASSPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=InvalidMimeTypePASSPASSPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=InvalidUrlForSpeculationRulesSetPASSPASSPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=RelativeUrlForCandidatePASSPASSPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=RelativeUrlForSpeculationRulesSetPASSFAILPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=StatusCode199PASSPASSPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=StatusCode404PASSPASSPASSERRORERRORNOT RUN
out-of-document-rule-set.https.html?include=UseNonUTF8EncodingForSpeculationRulesSetPASSPASSPASSERRORERRORNOT RUN
prefetch-single.https.html?from_protocol=http&to_protocol=httpPASSPASSPASSERRORERRORNOT RUN
prefetch-single.https.html?from_protocol=http&to_protocol=httpsFAILFAILFAILERRORERRORNOT RUN
prefetch-single.https.html?from_protocol=https&to_protocol=httpPASSPASSPASSERRORERRORNOT RUN
prefetch-single.https.html?from_protocol=https&to_protocol=httpsPASSFAILPASSERRORERRORNOT RUN
prefetch-status.https.html?status=200&should_prefetch=truePASSFAILPASSERRORERRORNOT RUN
prefetch-status.https.html?status=250&should_prefetch=truePASSFAILPASSERRORERRORNOT RUN
prefetch-status.https.html?status=299&should_prefetch=truePASSFAILPASSERRORERRORNOT RUN
prefetch-status.https.html?status=400&should_prefetch=falsePASSPASSPASSERRORERRORNOT RUN
prefetch-status.https.html?status=500&should_prefetch=falsePASSPASSPASSERRORERRORNOT RUN
prefetch-traverse-reload.sub.html3/31/31/30/30/3NOT RUN
prefetch-uses-cache.sub.https.html?cross-siteFAILFAILFAILERRORERRORNOT RUN
prefetch-uses-cache.sub.https.html?same-sitePASSFAILPASSERRORERRORNOT RUN
redirect-middle-of-prefetch.https.html?origin=cross-site-initial2/22/22/20/20/2NOT RUN
redirect-middle-of-prefetch.https.html?origin=cross-site-redirect2/22/22/20/20/2NOT RUN
redirect-middle-of-prefetch.https.html?origin=same-origin2/22/22/20/20/2NOT RUN
redirect-to-prefetch-url.https.html?origin=cross-site-initial2/22/22/20/20/2NOT RUN
redirect-to-prefetch-url.https.html?origin=cross-site-redirect2/22/22/20/20/2NOT RUN
redirect-to-prefetch-url.https.html?origin=same-origin0/22/22/20/20/2NOT RUN
redirect-url.https.html?origin=cross-site-initial0/20/20/20/20/2NOT RUN
redirect-url.https.html?origin=cross-site-redirect0/20/20/20/20/2NOT RUN
redirect-url.https.html?origin=same-origin2/20/22/20/20/2NOT RUN
referrer-policy-from-rules.https.html?1-1PASSFAILPASSERRORERRORNOT RUN
referrer-policy-from-rules.https.html?2-2PASSFAILPASSERRORERRORNOT RUN
referrer-policy-from-rules.https.html?3-3FAILFAILFAILERRORERRORNOT RUN
referrer-policy-from-rules.https.html?4-4PASSPASSPASSERRORERRORNOT RUN
referrer-policy-from-rules.https.html?5-5PASSFAILPASSERRORERRORNOT RUN
referrer-policy-from-rules.https.html?6-6PASSPASSPASSERRORERRORNOT RUN
referrer-policy-from-rules.https.html?7-7PASSPASSPASSERRORERRORNOT RUN
referrer-policy-from-rules.https.html?8-lastPASSFAILPASSERRORERRORNOT RUN
referrer-policy-not-accepted.https.html?1-1PASSFAILPASSERRORERRORNOT RUN
referrer-policy-not-accepted.https.html?2-2PASSPASSPASSERRORERRORNOT RUN
referrer-policy-not-accepted.https.html?3-lastPASSPASSPASSERRORERRORNOT RUN
referrer-policy.https.html?1-1PASSFAILPASSERRORERRORNOT RUN
referrer-policy.https.html?2-2PASSFAILPASSERRORERRORNOT RUN
referrer-policy.https.html?3-3PASSFAILPASSERRORERRORNOT RUN
referrer-policy.https.html?4-lastPASSFAILPASSERRORERRORNOT RUN
same-origin-cookies.https.html?1-1PASSFAILPASSERRORERRORNOT RUN
same-origin-cookies.https.html?2-lastPASSFAILPASSERRORERRORNOT RUN
sec-fetch-headers.https.html4/40/44/40/40/4NOT RUN
user-pass.https.html?cross-origin=falsePASSFAILERRORERRORERRORNOT RUN
user-pass.https.html?cross-origin=trueTIMEOUTTIMEOUTERRORERRORERRORNOT RUN