Google Updates PageSpeed Insights With Lighthouse 11

Google Updates PageSpeed Insights With Lighthouse 11

Google has up to date PageSpeed Insights with a brand new model of Lighthouse. The brand new model comprises new audits, bug fixes and adjustments to scoring.

Lighthouse 11

Lighthouse is an open supply measurement software that helps debug web site efficiency points.

It’s additionally the expertise that powers PageSpeed Insights and different instruments that measure core internet vitals.

Google launched the newest model, Lighthouse 11, on Monday, August twenty eighth.

Adjustments To Lighthouse 11/PageSpeed Insights

There are numerous adjustments launched.

The next adjustments and additions are notable:

  • New accessibility audits
  • Adjustments to how best practices are scored
  • Largest Contentful Paint scoring bug fastened
  • Up to date Interplay to Subsequent Paint (INP) to mirror it’s not experimental
  • A number of miscellaneous bug fixes

Interplay to Subsequent Paint (INP)

Interaction to Next Paint (INP) is a brand new metric that measures the interactivity of the whole webpage.

It was previously an experimental metric however in Could of this yr Google eliminated it from the experimental stage and it’s in line to grow to be an official Core Internet Important in 2024.

The change in Lighthouse 11 is to formally mirror that INP is not experimental.

Largest Contentful Paint (LCP) Scoring Bug Fastened

LCP diagnostic suggestions confirmed an error in scoring, a bug that was launched in Lighthouse 10.2.0.

In keeping with the GitHub error report:

“Largest Contentful Paint ingredient — Error!” is showing on all web sites, together with your personal web site (https://internet.dev/).

It seems to be a bug with the newest model of Lighthouse (Lighthouse 10.2.0) when utilizing PageSpeed Insights.”

Screenshot of Bug in PageSpeed Insights

Google Updates PageSpeed Insights With Lighthouse 11

Accessibility Audits

Web site accessibility shouldn’t be at present a rating issue and fairly probably not a top quality sign.

Nonetheless it’s a finest follow for a web site to operate appropriately for as many individuals as doable.

It’s good for society and in the end it’s additionally good for the underside line.

Lighthouse 11 introduces 13 new accessibility audits:

  1. aria-allowed-role
  2. aria-dialog-name
  3. aria-text
  4. html-xml-lang-mismatch
  5. image-redundant-alt
  6. input-button-name
  7. label-content-name-mismatch
  8. link-in-text-block
  9. select-name
  10. skip-link
  11. desk–duplicate-name
  12. table-fake-caption
  13. td-has-header


The aria-allowed-role, in easy phrases, is the title for a gaggle of labels that helps folks utilizing assistive applied sciences work together with the webpage.

For instance, a landmark function identifies the aim of a semantic ingredient.

The Mozilla reference page for the landmark role explains:

“A landmark is an summary function for a piece of content material that’s necessary sufficient that customers will probably need to have the ability to navigate to the part simply and have it included in a dynamically generated abstract of the web page.

Landmarks permit assistive applied sciences to navigate and to search out content material rapidly.”


The image-redundant-alt is an audit for figuring out various textual content that’s redundant as a result of it’s positioned subsequent to textual content that claims the identical factor.

An instance of redundancy is when the alt-text of a button says “Click on Right here” and the identical textual content (click on right here) exists beneath the button.

A display reader will learn the alt-text and the textual content, as click on right here, click on right here.

Up to date Lighthouse 11

This replace comprises many necessary adjustments to PageSpeed Insights and factors the best way to even greater adjustments coming in 2024.

Learn the Official Bulletins

The official bulletins are unfold out throughout a number of pages, together with dozens of error experiences on GitHub.

Listed here are two good beginning factors for studying all the small print:

What’s new in Lighthouse 11

Lighthouse 11 release notes

Featured picture by Shutterstock/Overearth




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