Wondering what Google’s Core Web Vitals update is about? In this blog, we explain what the metrics are, why they are important, and how you can improve them. https://www.webguru-india.com/blog/core-web-vitals/

1. Core Web Vitals in Website Design (How to Improve
Them)
Has your website ever dropped in SEO rankings and you were left wondering what went
wrong? In such cases, after examining the core SEO factors such as quality content, natural
interlinking & backlinks, mobile optimization, and so on, you should consider looking up
another vital website report – your Core Web Vitals.
Google uses specific ranking signals to measure website reliability, efficiency, and core user
experience. Core Web Vitals are page experience scores that Google gives to websites. These
are vital factors that measure how well-optimized your site is, and how good the user
experience is. When designing your website, make sure it is optimized for these metrics.

2. Otherwise, you may end up harming your Google rank and the overall user experience as
well.
Too technical? In this article, we have tried to simplify what your site’s core web vitals mean,
how they are affected by your site’s design, and how you may go about improving them.
Improving your core web vitals score is crucial for your site’s ranking, so you may also take
the help of professional web designers if it sounds too difficult.
What Are They & Why Are They Important?
Google uses certain key performance indicators in order to measure the health and quality of
your website. These are called Core Web Vitals. Alongside older ranking signals such as
keyword optimization, content, metadata, etc, Google uses these web vitals to determine
your website’s performance.
Core Web Vitals can help you considerably improve your search results performance. They
analyze your site loading speed and user experience and lets Google determine how well your
website is performing. They also help you identify areas where your website design and
coding can be improved. There are specifically 3 things Core Web Vitals consider – loading
time, visual stability, and interactivity. These metrics are termed as:
 Largest Contentful Paint (LCP)
 Cumulative Layout Shift (CLS)
 First Input Delay (FID)
These metrics are easily measurable with the help of tools like Google Lighthouse, PageSpeed
Insights, GTMetrix, and Reddico SERP Speed Tool. If your website manages to obtain a score
within a specific threshold, you may receive a boost in ranking. If not, you will know where
optimization is required. Let us go over these terms.
Largest Contentful Paint (LCP)
The LCP generally measures your website’s loading performance from the point of view of an
actual user. It is not the same as measurements where we use numbers to account for a site’s
loading speed, like 2-3 seconds. This isn’t an accurate measurement, since not every element
in a web page loads at the same speed. Some of the heavier elements such as large images and
videos will take longer to load than the logo and the content.
If a site takes longer than 4-5 seconds to load, visitors will usually leave and look for a faster
site. If the loading time for the page is around 10 seconds, then the bounce rate for the page
increases up to 123% (Google). This is what makes LCP so crucial to the Core Web Vitals. LCP
measures the time required for the largest element on the web page to load, or rather how

3. long it takes for a page to finish loading. If your LCP falls under 2.5 seconds, then you have
nothing to worry about. If it is 4 seconds or over, your page still needs work.
In order to improve your web page’s LCP, you should keep the following points in mind:
 Unnecessary third-party scripts should be removed, since they can slow down the page
considerably.
 Upgrade to a web host that will boost your loading speeds.
 If you have a large element on your page that is not so important, consider removing
it.
 Bulky CSS can also cause slow loading times.
Cumulative Layout Shift (CLS)
CLS measures visual stability, meaning how stable your page layout is and how elements in it
move around. In other words, CLS tries to analyze the stability of the elements that load onto
the screen. It may often happen that elements on a page like buttons and images get shifted
around as the page loads. This happens when a large-sized background is still loading. It can
also happen due to ads. Although ads are the lifeline of numerous websites, they can often be
quite slow to load. A few more common reasons for a poor CLS metric are iframes, embedded
images and videos, content with heavy script, etc. As a result of these, elements like fonts,
text, buttons, and images move around the page randomly and unexpectedly, and this is then
flagged by Google as poor user experience.
The CLS metric compares frames of your webpage in order to measure the movement of the
elements. The severity of the movements is calculated by comparing the individual points
where the shift happens. Scores of 0.1 and below are considered “good”. If your score is
higher, consider the following:
 Include size attributes within your images and videos.
 You can use CSS aspect ratio boxes to specify the space that will be required by images
or videos as well. This will let the browser allocate the correct amount of space for the
elements right away, and they won’t appear suddenly and push away other content.
 Avoid letting new content appear on top of existing content when a user interacts.
 Add new elements to your webpage below all of the existing content.
First Input Delay (FID)
FID measures the amount of time required for a user to actually be able to interact with your
site. There is a small time gap between when a user first interacts with your page, and when
the browser actually starts processing a response to the interaction. This gap is measured

4. through FID. Google claims that this time should be 100 ms or below. If your FID falls in the
range of 100-300 ms, then it needs work. If the score is above 300, then your site performance
is considered poor.
In simple words, FID measures your site’s interactivity. This includes all kinds of interactions,
from selecting a menu option, to clicking on a link, to typing something into a field (scrolling
and zooming don’t fall under this category of metrics).
When a browser is busy, it might be unable to quickly process a user request or interaction,
resulting in latency. This usually happens when the page contains a high amount of
JavaScript code that requires execution. In order to improve your FID, consider the following
points:
 Long tasks tend to block the main thread, temporarily disabling it from being able to
process user inputs. Therefore, you should break up long tasks into smaller,
asynchronous ones. This will allow the browser to process user actions in between
these tasks. Also, make sure the time taken by these tasks doesn’t exceed 50 ms.
 Minimize the amount of post-processing required on the client side. This will
considerably reduce the load on their browser.
 Consider using web workers to reduce the load on the main thread.
 Remove all non-critical third-party scripts.
Tools and Techniques You Can Use
Here are some tools and techniques that will help you resolve most of the issues concerning
core web vitals.
 Check your hosting. With the help of fast web hosts with greater processing power,
most issues with LCP and FID should be resolved. Identify what kind of hosting your
site requires, then make the best choice.
 Set up caching for your site. WP Rocket is a great tool that can set this up for
WordPress websites with negligible hassle.
 Implement lazy loading. This ensures that only the visible portion of the web page is
loaded instead of its entirety. This will keep loading speeds on your website fast. WP
Rocket and Autoptimize are good tools to set this up.
 Set up a CDN, or Cloud Delivery Network. This sets up virtual servers worldwide for
your website, meaning people across the world can visit it without speed issues.
 Compress your images. If you only serve very high quality images, your site will take
unnecessarily long to load. Use tools like ShortPixel and io to reduce images in size
without compromising quality. Try to use images in the .webp format, since these are
the most web-friendly.

5.  Clean up your scripts, and remove any that you don’t need. If your website is slightly
older, you’re bound to have some plugins that you don’t use anymore. Uninstall and
remove them.
 Upgrade to HTTPS if you haven’t already. It’s faster.
Conclusion
If you follow all the best practices of website design, keeping all of the above points in mind,
then your scores will benefit greatly. It’s all about your visitors, and their web experience. As
long as you can keep improving your users’ experience on our site, you should have no
trouble maintaining an effective and successful website.
Resource: https://www.webguru-india.com/blog/core-web-vitals/
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