GitHub · Where software is built

☔ Performance Score Is Different
#10657 · patrickhulce opened on Apr 28, 2020
☂ "Unable to load the page"
#2784 · paulirish opened on Jul 28, 2017
46
Error Message: Attempted to get a SyntheticEventsManager without initializing
#16571 · patrick-mcdougle opened on Jul 1, 2025
5

Labels Milestones New issue

<code>third-parties-insight</code> misreports <code>transferSize</code> for double-requested (cached) resources

#16833

· benschwarz opened

on Jan 14, 2026

Strategies for optimizing CLS and LCP on a documentation-heavy "Cheat Sheet" site?

#16814

· lilyfloori opened

on Dec 24, 2025

Developer Tools/Lighthouse/SEO Results Differ in Chrome Dev vs Chrome

#16807

· 3gramms-web opened

on Dec 19, 2025

Use trace instead of protocol for lantern

#16805

· connorjclark opened

on Dec 15, 2025

Do insights audits make it hard to identify the LCP element?

#16801

· mattzeunert opened

on Dec 13, 2025

Should networkQuietThresholdMs / pauseAfterLoadMs/... be quietly overridden for non-simulated tests?

#16796

· mattzeunert opened

on Nov 30, 2025

Why does the accessibility gatherer run when running just SEO audits?

#16795

· mattzeunert opened

on Nov 30, 2025

Erroneous "Identical links have the same purpose." warning

#16793

· makeprintplay opened

on Nov 24, 2025

Significant differences between CLS in PageSpeed Insights and Chrome DevTools

#16784

· littleAmused opened

on Nov 12, 2025

page's load performance.

#16783

· joselpalacios12345 opened

on Nov 9, 2025

Chrome extensions installed are harming the reports

#16780

· fabioselau077 opened

on Nov 4, 2025

LCP request discovery" audit incorrectly reports "fetchpriority=high" should be applied.

needs-more-info

#16779

· andyj2022 opened

on Oct 31, 2025