Core Web Vitals are certain bunch of rules that google consider for the overall website user experience that deals with page load time, interactivity with the user.
Google affirms Core Web Vitals are turning out to be important ranking factor in May 2021. This might be one of the part of new page experience signals to google search console.

You can test your website’s speed by PageSpeed Insights , or even by GTmetrix
Page Experience Ranking Signals
The page experience signal estimates parts of how user see the experience of collaborating with a site page.
In the own words of Google, here is what it means
The page experience signal measures aspects of how users perceive the experience of interacting with a web page. Optimizing for these factors makes the web more delightful for users across all web browsers and surfaces, and helps sites evolve towards user expectations on mobile. We believe this will contribute to business success on the web as users grow more engaged and can transact with less friction.
The ‘page experience’ signal consolidates Core Web Vitals with the accompanying signs:
- Mobile-friendliness
- Safe-browsing
- HTTPS-security
- Intrusive interstitial guidelines
In particular, these are characterized as the Core Web Vitals in page experience signals:
- Largest Contentful Paint: The time it takes for a main page content to load and an ideal LCP measurement is 2.5 seconds or quicker.
- First Input Delay: The time it takes for a page to become interactive with the user. An ideal measurement is under 100 milliseconds.
- Cumulative Layout Shift: The measure of sudden design move of visual page content. An ideal measurement is less (<) than 0.1.
Where to Check Your Core Web Vital Info
You can find your website Core Web Vitals information in the “enhancements” section of your Google Search Console account.
You can even manually test your website page speed test too by page speed insights
Factors to Improve your Core Web Vital
Here in this guide i will reveal you the most important factors that how you can optimize your website to improve the core web vital for an upcoming update in may 2021 by google to be stable in your ranking factor.
You have to concentrate on these 3 factors:
- LCP
- FID
- CLS
Largest Contentful Paint (LCP)
LCP is the time taken for a main page content to be loaded from the user’s view point.
In other words to say, this is the time from clicking on a link in a page to see the majority of the content on-screen.
It should be less than 2.5 seconds.
Consider the main factors to improve your LCP :
- Upgrade your web hosting
- Enable Lazy loading of images
- Minification process should be done
- Removal of the third-party scripts
Here is a snapshot of what the Core Web Vitals Report looks like for the issue in the google search console:
From above search console part, you can
- Identify the particular URL that causes the issue
- Evaluate LCP of the page element
- Identify the element that time taken for largest loading
- Validate the issue and fix it.
First Input Delay
The next factor to improve in core web vitals is FID where the exact time taken by the user to interact with your site.
Some of the factors of interactions includes:
-
- Clicking an option from a menu
- Click on your Pop-up
- Clicking on a link in the site’s navigation
Suppose if you have an Sign Up option in your main page content then it usually loads the script and the time taken to interact will be little longer for the user.
Here i will list some of the factors you need to check for reducing your FID less than 100ms as follows:
- Reduce your javascript execution time
- Enable browser cache
- Minimize the third party scripts
For a page that have only content in main page like a blog post or articles then FID error might not arise often. The only “interaction” here is scrolling up or down and zoom in, zoom out only.
Cumulative Layout Shift (CLS)
CLS is how the page is visually stable for user point of view.
This should be less than 0.1
Suppose if some elements moves out after page loads then you probably will have high CLS score.
Probably slow loading page may tends user to bounce the website. No one here ready to wait still page loads very long , so this causes increase in CLS often.
Here displays the CLS issue by Pagespeed Insight test by Lighthouse:
So if you run a speed test you will get the factors to rectify the CLS in your site and improve CLS by fixing those issues.
To maintain a proper CLS follow these factors:
- Improve your image dimension by size attributes
- Improve CSS style load
- In the event that utilizing CSS to animate components, favor “transform” animation
- Disable logo shrink effect, sticky headers too
- Make sure first page don’t have much ads or reserve page for ads.
Website owners have all the earmarks of being striving to set up their pages for the page experience signal. Google reports a middle 70% expansion in the quantity of user drawing in with Lighthouse and Page Speed Insights to assess page experience signal.
Getting these three Core Web Vitals forward-thinking is significant for now, however “page experience ranking signals” may be essentially unique tomorrow. Google is continually moving its methodology and improving its calculation to meet client goal. Site proprietors need to remain in a position of spryness to adjust to refreshes as they occur.