PageSpeed ​​Insights.

PageSpeed ​​Insights: -

  • Google has announced that PageSpeed ​​Insights will publish all available field data.
  • PageSpeed ​​Insights and API updated to show more field data than ever before. 
  • Updated PageSpeed ​​Insights scoring is live and reflects a new way of handling field data.
  • PageSpeed ​​Insights displays field data if all field data is collected.

Field data in PageSpeed ​​Insights:

  • Field data is the actual user page speed metrics collected by Google through selected Chrome mobile browsers that send anonymous performance information from the site visitor's actual experience on the webpage, which is used to calculate page speed metrics.
  • Lab data is used at Google Lighthouse, a tool used to estimate page speed scores.
  • Lighthouse is shipped in the Chrome browser and powered by dev tools.
  • Right-clicking anywhere on a web page opens Chrome Dev Tools and from there you can use Lighthouse to simulate what PageSpeed ​​metrics are.
  • The actual data used by Google for ranking purposes is called field data and is collected from real users who are actually downloading real pages on mobile devices.
  • The change made by Google to the PageSpeed ​​Insights API and tool is that Google shows the collected field metrics even if no other field data is collected.
  • Google will report all collected data only if it corresponds to a specific threshold of data.

First Input Delay (FID):

  • First input delay is a metric that measures website response by measuring the delay in processing an event and the time it takes for the webpage to respond, such as clicking a button, pressing a menu, or entering data with a keyboard press.
  • Scrolling and zooming in on text or images is not considered interaction with a web page.
  • Most users do not interact with the webpage and as a result, this metric is not recorded in the Chrome User Experience Report (CrUX).
  • This is a positive step from Google as the additional information will allow more publishers to make better decisions about what needs to be done regarding page speed metrics.

Good news for web publishers, developers and SEO:

  • This is great news for the publishing community as the field data reflects the user experience of the actual site visitor on the web page.
  • More field data can be taken to address a more accurate and complete action if publishers have the information.

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