The coming core web vitals update

The coming core web vitals update


Brace for impact! The Google Core Web Vitals update is coming soon! The update will focus heavily on user page experience – utilising the Core Web Vitals from Page Speed Insights to ascertain if a web page has passed their very strict tests. The toughest part of this update is that your site has to be performing for 28 consecutive days before it passes – it can’t be checked once and told it’s all good! Currently, the focus is on three aspects:

Largest Contentful Paint (LCP): measures loading performance. To provide a good user experience, LCP should occur within 2.5 seconds of when the page first starts loading.

First Input Delay (FID): measures interactivity. To provide a good user experience, pages should have a FID of less than 100 milliseconds.

Cumulative Layout Shift (CLS): measures visual stability. To provide a good user experience, pages should maintain a CLS of less than 0.1.


This is represented by the tools in in a neat little speedometer style report, which looks like this:


core web vitals may 2021


According to Google, anything in the top 75th percentile means that a page has passed and the theory is that it won’t be affected by the update. The rumblings in the Manchester SEO community seem to be that this update is going to be a massive one – the last time Google gave such a lengthy notice of an update like this was back when it first rolled out Mobilegeddon, which was back in 2015 – and nothing has quite shook the results pages up since then.

Fortunately though, if you are a Gorilla Marketing client – we’re all over this. We’ve already boosted our own website and are about 75% of the way through our clients.



Gorilla 100

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