Automated auditing, performance metrics, and best practices for the web.
We expect this release to ship in the DevTools of Chrome 126, and to PageSpeed Insights within 2 weeks.
Thanks to our new contributors π½π·π°π―π»!
As per Chromeβs updated Installability Criteria, Lighthouse has removed the PWA category. For future PWA testing, users will be directed to use the updated PWA documentation.
The SEO category has been updated to reflect the priorities of Google search in 2024. As such, several audits have been removed or moved to other categories:
is-crawlable
audit is now weighted high enough to fail the SEO category on its own. (#15933)viewport
and font-size
audits are no longer priorities for SEO, but are still important for UX in general so they have been moved to the best practices category. (#15930)plugins
audit is no longer a priority for SEO and has been removed. (#15928)tap-targets
audit is no longer a priority for SEO and has been replaced with the target-size
audit in accessibility. (#15906)The overallSavingsMs
value on performance diagnostic audits has been deprecated (#15902). We recommend using metricSavings.LCP
or metricSavings.FCP
to understand the estimated metric savings of performance diagnostics.
aria-conditional-attr
, aria-deprecated-role
and aria-prohibited-attr
Axe checks have been added to the Lighthouse accessibility category. (#15963)redirects-http
audit has been brought back, but will only passively check for a http -> https redirect if the provided URL happens to be on http (#13548)layout-shifts-elements
audit is removed. Improved layout shift information can be found in the layout-shifts
audit. (#15931)no-unload-listeners
audit is removed. Unload listeners are deprecated and are still flagged in the deprecations
and bf-cache
audits. (#15874)duplicate-id-active
audit is removed because it's corresponding Axe check is deprecated. (#15900)uses-rel-preload
and preload-fonts
audits have been moved to the experimental config. Preload advice is still on hold and these audits were already in a disabled state. (#15876)CSSUsage
artifact (#15952)ScriptElements
artifact (#15879)service-worker
gatherer (#15942)tldts-icann
to 6.1.16 (#15967)third-party-web
to 0.24.2 (#15966)BenchmarkIndexes
base artifact (#15941)lighthouse-cli
file (#15935)We expect this release to ship in the DevTools of Chrome 125, and to PageSpeed Insights within 2 weeks.
Thanks to our new contributors π½π·π°π―π»!
impactedNodes
(#15915)We expect this release to ship in the DevTools of Chrome 125, and to PageSpeed Insights within 2 weeks.
manifest-parsing-or-network-error
(#15849)getArtifact
phase once (#15827)chrome-launcher
to 1.1.1 (#15871)We expect this release to ship in the DevTools of Chrome 124, and to PageSpeed Insights within 2 weeks.
axe-core
to 4.8.4 (#15805)We expect this release to ship in the DevTools of Chrome 123, and to PageSpeed Insights within 2 weeks.
Thanks to our new contributors π½π·π°π―π»!
We expect this release to ship in the DevTools of Chrome 122, and to PageSpeed Insights within 2 weeks.
Thanks to our new contributors π½π·π°π―π»!
Chrome plans to remove support for third-party cookies which can be detected using a new Lighthouse audit. Learn more about phasing out third-party cookies. (#15632)
else
to punctuation (#15624)We expect this release to ship in the DevTools of Chrome 121, and to PageSpeed Insights within 2 weeks.
Thanks to our new contributors π½π·π°π―π»!
clearStorageTypes
option (#15508)lighthouse-stack-packs
to 1.12.1 (#15566)We expect this release to ship in the DevTools of Chrome 120, and to PageSpeed Insights within 2 weeks.
This update includes an overhaul to the performance category. Performance insights are now scored and prioritized based on their estimated impact to the performance metrics. Additionally, the performance score gauge includes more detailed information about how each metric affects the score.
propertyRuleIssue
(#15491)axe-core
to 4.8.1 (#15446)We expect this release to ship in the DevTools of Chrome 119, and to PageSpeed Insights within 2 weeks.
Thanks to our new contributors π½π·π°π―π»!
bootup-time
(#15431)index.cjs
types (#15387)DevtoolsLog
and Trace
artifacts (#15345)rawHref
crawlable (#15406)third-party-web
to 0.24.0 (#15354)axe-core
to 4.8.0 (#15430)We expect this release to ship in the DevTools of Chrome 118, and to PageSpeed Insights within 2 weeks.
Thanks to our new contributors π½π·π°π―π»!
The --legacy-navigation
flag on the CLI, the legacyNavigation()
function in the Node API, and the "Legacy navigation" checkbox in the DevTools panel have all been removed.
DevtoolsLog
and Trace
artifactsFor custom audits, the devtoolsLogs['defaultPass']
and traces['defaultPass']
artifacts have been deprecated in favor of DevtoolsLog
and Trace
. See our plugin docs for example usage.
devtoolsLogs
and traces
still exist for compatibility purposes but will be removed in a future breaking release.
resource-summary
audit (#15299)DevtoolsLogError
and TraceError
artifacts (#15311)service-worker
audit (#15257)first-contentful-paint-3g
audit (#15252)Scripts
as a dependency (#15293)lighthouse-logger
to 2.0.1 (#15282)chrome-launcher
to 1.0.0 (#15287)devtoolsLogs
and traces
(#15318)fraggle-rock
fixtures directory to user-flows
(#15291)