Google’s New Core Web Vitals Update

Google implemented a “broad core update” to its search-engine algorithm on May 25, 2022. Google has introduced new Core Web Vitals metrics: INP (Interaction To Next Paint) and TTFB (Time to First Byte).

INP refers to how the page responds to specific user interactions that are programmed into the overall INP metric measured by Google Chrome’s lab data and field data.

TTFB measures the length of time that it takes for the first byte to be transferred by the server. With TTFB, SEO pros can measure how their site performs at the server level.

Now more details about INP

The measurement of INP is a representation of how long a user has to take to interact with the entire page. It is designed to provide a representation of the overall interaction delay of a page.

Google’s web.dev documentation explains that a good INP value is around 200 milliseconds or less.

Be aware of the following:

  • An INP below or at 200 milliseconds means that your page has good responsiveness.
  • An INP above 200 milliseconds and below or at 500 milliseconds means that your page’s responsiveness needs improvement.
  • An INP above 500 milliseconds means that your page has poor responsiveness.

Some INP issues arise because people do not optimize their main thread work enough to make sure that things are properly viable from a Core Web Vitals perspective.

Others can be caused by JavaScript file misfirings and a lack of attention to how things load on the page — especially with larger images.

You can use the Google Chrome Extension called Lighthouse to measure INP.

Indeed, improving your INP won’t do everything to ensure instant SEO success, but it can contribute to changes in overall SEO performance.

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