Google is developing a new Core Web Vitals metric, and they want your feedback!

Kaushal Thakkar is the Founder and MD of Infidigit. He has developed award-winning search strategies for various organizations, ranging from large enterprise and e-commerce websites to small and medium-sized businesses. Before Infidigit, he was leading digital marketing, product, and eCommerce initiatives at Myntra (a Walmart Company), Times Group, ICICI Group, Tata Group. Being an engineer and product manager in his earlier days, he loves to hack growth for websites via technical SEO strategies. He is a speaker at various forums and a Pro bono guest lecturer on Organic Search, Digital Marketing, Analytics & eCommerce. In X @

Google is developing a new Core Web Vitals metric, and they want your feedback!

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    Google is experimenting with a new responsiveness metric which could be the next Core Web Vitals metric

    The metric is focused on accurately measuring the interaction delay. Currently, Google makes use of the First Input Delay (FID) in order to measure this delay. 

    LCP indicates the time taken for the server to render the largest visible element in the viewport. This visible element could be an image or a text block. In simple terms, LCP is the time taken to load the largest content (text or image) on the page. For the best user experience, Google recommends that your LCP should be less than 2.5 seconds. 

    However, there are a lot of sites that pass the LCP test and score perfect scores. This has raised a lot of questions about the usefulness of this metric. Which has led to Google working on a new Core Web Vitals metrics. It is speculated that this new metric could potentially replace FID.

    What will the new Core Web Vitals metric measure?

    Google’s new metric will measure the full event duration. Currently, FID only measures the delay portion of the input event. It does not take into account the time it takes for the browser to actually process the event handlers. The new metric will measure the time from initial user input until the next frame is painted after all the event handlers have run. This will help Google measure the interaction delay more effectively.

    What are the improvements that will be made?

    With the new responsiveness metric, Google plans to make the following improvements:

    • The new metric will measure all the user inputs (unlike FID that only measure first input)
    • As mentioned above, it will capture the full event duration
    • The metric will group together all the events as part of the same logical user interaction. It will define the latency of the interactions as the max duration of all its events
    • In the end, it will come up with an aggregated score for all the interactions that happen on the page, throughout the full life cycle.

    This new metric will be able to judge whether a particular website is responding well to user interactions. You can read more about the metric here.

    Why do we require a new Core Web Vitals metric?

    Google believes that the First Input Delay (FID) is not a true measurement of users’ interactions. There are many sites that don’t respond well to user inputs and yet manage to get good FID scores.

    Here is Google’s take on this:

    “FID is very good for most CMSs on desktop, with all platforms scoring a perfect 100%. Most CMSs also deliver a good mobile FID of over 90%, except Bitrix and Joomla with only 83% and 85% of origins having a good FID.

    The fact that almost all platforms manage to deliver a good FID, has recently raised questions about the strictness of this metric.”

    What’s the progress on this new metric?

    Google Chrome developers team has been working on the new metric for months and have made good progress. They have effectively been able to measure responsiveness in a better way. There are still a few decisions they have to make in order for the new metric to be fully implemented. 

    Here’s the official statement from Google:

    “Earlier this year, the Chrome Speed Metrics Team shared some of the ideas we were considering for a new responsiveness metric. We want to design a metric that better captures the end-to-end latency of individual events and offers a more holistic picture of the overall responsiveness of a page throughout its lifetime.

    We’ve made a lot of progress on this metric in the last few months, and we wanted to share an update on how we plan to measure interaction latency as well as introduce a few specific aggregation options we’re considering to quantify the overall responsiveness of a web page.”

    Google also wants the valuable feedback of website owners and developers to help them effectively measure the overall user interactions of the pages.

    Here’s the tweet from Google’s Chrome Developers Twitter account:

    “Want to help us define the next Web Vitals metric?

    We’re close to finalizing a definition for our new input responsiveness metric (improving FID), and we want your feedback!

    Check out and make sure to try out the code sample at the end!

    We’d love to get feedback from developers and site owners as to which of these options would be most representative of the overall input responsiveness of their pages.”

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    New Core Web Vitals Metric

    Google is developing a new Core Web Vitals metric, and they want your feedback!