If you’ve recently run a Google Lighthouse report on your page and you’ve found yourself a bit puzzled by some of the points, don’t worry.
We’ve compiled all the possible audit points from the Performance section of the Google Lighthouse report in a glossary format.
Find out what each audit means, why they’re checked and how points are passed or failed.
After running the Lighthouse report, the main audit points are categorised into:
|Ensure text remains visible during webfont load||Reduce the impact of third-party code|
|Image elements do not have explicit width and height||Avoid an excessive DOM size|
|Minimize main-thread work||Serve static assets with an efficient cache policy|
|User Timing marks and measures||Keep request counts low and transfer sizes small|
|Largest Contentful Paint element||Avoid large layout shifts|
|Avoid long main-thread tasks||Avoid non-composited animations|
|Eliminate render-blocking resources||Properly size images|
|Defer offscreen images||Minify CSS|
|Serve images in next-gen formats||Enable text compression|
|Preconnect to required origins||Reduce server response times (TTFB)|
|Avoid multiple page redirects||Preload key requests|
|Use HTTP/2||Use video formats for animated content|
|Avoid enormous network payloads||Does not use passive listeners to improve scrolling performance|