How to Optimize for Core Web Vitals

In the dynamic digital landscape, where user experience is king, there’s one absolute truth: optimize for Core Web Vitals or be left in the dust. I’ve been down the murky roads of website optimization, where every millisecond of load time can be the difference between a converted customer and a bounce statistic. It’s not just about ticking boxes; it’s about crafting seamless digital experiences that users can glide through as effortlessly as a hot knife through butter.

What Are Core Web Vitals?

Let me cut to the chaseCore Web Vitals are the holy trinity of modern website performance metrics, designed to measure how users experience the speed, responsiveness, and visual stability of a page. These are not some vanity metrics to flaunt; they are the pulse and breath of your website’s user experience.

  • Largest Contentful Paint (LCP): This gauges loading performance. If a page’s main content pops up quicker than a Weasley’s firework, you’re golden.
  • First Input Delay (FID): This one’s all about interactivity. You click, and it responds without a coffee break in betweenthat’s the goal.
  • Cumulative Layout Shift (CLS): Visual stability is its game. No one likes a button that dances away as you’re about to click it.

Why Are Core Web Vitals Important?

Let’s not beat around the bush. Core Web Vitals are Google’s way of telling you that user experience trumps all. A site that loads like molasses, reacts like it’s in deep slumber, or shuffles content like a deck of cards is a no-go.

Google has made it clear: these metrics are now a part of their ranking factors. So, if you care about where your website stands in the search resultsand believe me, you shouldyou’ll prioritize these like they’re the oxygen your website breathes.

How to Measure Core Web Vitals

Learn about Core Web Vitals Optimization

In this article, you will learn:
– What Core Web Vitals are and why they are important
– How to measure Core Web Vitals using tools like Google Search Console, PageSpeed Insights, Lighthouse, and Chrome DevTools
– Tips to improve specific Core Web Vitals such as Largest Contentful Paint, First Input Delay, and Cumulative Layout Shift

Google Search Console

How to Optimize for Core Web Vitals

For the uninitiated, Google Search Console is akin to a stethoscope for your website’s health. It has a dedicated Core Web Vitals report that lets you peer into your site’s vitals at a granular level. My advice? Use it religiously.

PageSpeed Insights

How to Optimize for Core Web Vitals

PageSpeed Insights is your website’s personal trainer, giving you a rundown of performance and actionable advice. It’s a no-brainer tool that helps you pinpoint exactly where your Core Web Vitals need a boost.


How to Optimize for Core Web Vitals

Lighthouse is the beacon in the foggy world of web performance. It’s an open-source, automated tool that has helped me, and countless others, illuminate the dark corners of our websites that need work.

Chrome DevTools

How to Optimize for Core Web Vitals

Chrome DevTools is the Swiss Army knife for developers. It has a performance panel that allows you to record and analyze a page load, which is invaluable for nailing down those pesky performance issues.

How to Improve Core Web Vitals

Largest Contentful Paint (LCP)

How to Improve LCP

Improving LCP is like tuning an engine for maximum performance. Here’s the secret sauce:
Optimize your server: A performance-optimized hosting solution is paramount. Think of it as a race carwithout a solid engine, you’re going nowhere fast.
Use a CDN: Spread your content across a content delivery network to reduce latency. It’s like having multiple pit stops in a race to ensure your car gets serviced in the blink of an eye.
Optimize images and files: Compress and format your images. I learned the hard way that oversized images are like dragging an anchor in a sprint.

First Input Delay (FID)

How to Improve FID

Reducing FID is about ensuring that your site is as responsive as a world-class sprinter at the starting block:
Minimize (or defer) JavaScript: It’s the equivalent of shedding unnecessary weight to run faster.
Remove non-critical third-party scripts: Every extra script is like an additional hurdle on the track. Remove them, and you clear the path to victory.

Cumulative Layout Shift (CLS)

How to Improve CLS

Imagine setting a glass down only to have the table jerk away. Annoying, right? That’s poor CLS. To improve it:
Use set size attribute for images and videos: It’s like telling your guests where the furniture is so they don’t trip over.
Ensure ad elements have a reserved space: Don’t let ads pop up like a jack-in-the-box. Give them a designated space.

Core Web Vitals FAQs

What is a good LCP score?

Insider Tip: Aim for an LCP of 2.5 seconds or faster. It’s the sweet spot where users feel the website is snappy.

What is a good FID score?

A good FID score is below 100 milliseconds. It’s the threshold where interactions feel instantaneous.

What is a good CLS score?

Insider Tip: Strive for a CLS of 0.1 or less. This ensures your page feels as stable as a rock.

What is the difference between LCP, FID, and CLS?

  • LCP measures the loading performance of the main content.
  • FID measures the time from a user’s interaction to the response of the browser.
  • CLS measures the visual stability of a page.

What is the difference between Core Web Vitals and Page Experience?

Core Web Vitals are a subset of the Page Experience signals, which include mobile-friendliness, HTTPS, and absence of intrusive interstitials, among others.


To wrap this up, optimizing for Core Web Vitals isn’t just a checkbox exercise; it’s a commitment to providing an unparalleled user experience. It’s about respecting the user’s time and ease of navigation, and in doing so, earning their trust and potentially, their business. Remember, the internet is a vast ocean, and your website is your ship. Make it swift, make it stable, and make it responsive, or risk sinking into the abyss of irrelevance.

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Xavier Berkness

Xavier Berkness is the President of PERC, a renowned Digital Marketing Company. With an impressive career spanning over two decades since 1996, Xavier has earned a reputation as a leader in the field of digital marketing. He has leveraged his deep understanding and expertise in building websites to author a highly-regarded book, 'Mastering On-Page Optimization - The Secret Sauce of an SEO System.' Xavier's impactful contributions to the industry have been recognized in a Star Tribune feature, where he was hailed as a 'Mover and Shaker.' Outside the professional realm, Xavier is a nature lover who cherishes time spent near the ocean. He continues to fuel his passion for digital marketing, relentlessly seeking new knowledge and strategies every day. His combination of professional prowess and personal charm make Xavier a trusted authority in the digital marketing industry.