Core Web Vitals
Optimization Services

Does achieving optimal website performance metrics like Core Web Vitals seem impossible? Our Supreme Technologies team can improve your website's Largest Contentful Paint (LCP), Interaction to Next Paint (INP), Cumulative Layout Shift (CLS), and other page experience signals. After our optimization process, you can expect:

  • Better rankings
  • Faster load times
  • Enhanced UX
  • Higher conversions
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Understanding Website Core Web Vitals Metrics

Delivering an exceptional user experience on websites is crucial for business success, especially in the e-commerce and online sectors. In 2021, Google implemented a significant algorithm update focusing on user-centric page experience metrics.

Google introduced three new ranking factors known as Core Web Vitals: Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS). In 2024, FID was replaced by a new metric called Interaction to Next Paint (INP).

These Core Web Vitals scores evaluate how well a website (both mobile and desktop versions) performs for actual users. Each metric measures a specific aspect of the user experience:

  • Largest Contentful Paint (LCP) assesses loading performance by measuring the time it takes for the largest content element (text or image) to become visible after a user opens the page.
  • Interaction to Next Paint (INP) evaluates responsiveness by measuring the latency between user interactions and the next visual update on the page.
  • Cumulative Layout Shift (CLS) measures visual stability by quantifying unexpected layout shifts that occur as users interact with the page.

Why Optimizing Your Website's Performance Matters

In today's digital world, ignoring website performance is bad for business. However, there are great reasons to make it a priority - not only does it boost search rankings, but it also gives users a better experience. Here's how optimizing your site's performance can drive success:

Better Search Rankings

Search engines like Google prioritize fast, responsive websites in their ranking algorithms. A high-performing site can easily outrank slower competitors, giving you an edge in visibility and discoverability. Additionally, better rankings mean more qualified traffic coming your way, increasing your chances of conversions and growth. Studies have shown that even a one-second delay in load times can significantly impact bounce rates and conversions, making performance optimization crucial for search engine success.

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More Free Traffic

With higher rankings comes more visits from people searching online - traffic that doesn't cost you anything. Moreover, more visitors translate into more potential customers and sales opportunities. This free, organic traffic is highly targeted and valuable, as users are actively seeking solutions that your business provides. By optimizing for speed and performance, you can capture a larger share of this valuable traffic, expanding your reach and potential customer base.

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Faster Page Loads

Performance upgrades fix whatever is making pages load slowly. As a result, with faster load times, especially on mobile, users have a smoother, less frustrating experience. Faster load times also reduce the likelihood of users abandoning your site before it fully loads, improving overall engagement and time on site. In addition, faster load times can positively impact user perception of your brand, as users associate speed with professionalism and reliability.

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Improved Stats

Without lagging, freezing, or content jumping around, you'll see lower bounce rates, longer visits, and more engagement. Consequently, all your website metrics get better. Optimized performance directly impacts key performance indicators (KPIs) that drive business growth and success. Improved metrics can also provide valuable insights into user behavior and preferences, allowing you to make data-driven decisions to further enhance the user experience.

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Happier Users

Slow loads, unresponsive pages, and shifting layouts frustrate users and make them leave. Optimized performance, on the other hand, creates an enjoyable, seamless experience that keeps people on your site. Happy users are more likely to return, recommend your site to others, and become loyal customers. A positive user experience can also foster brand loyalty and advocacy, as satisfied users are more likely to share their experiences with others.

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More Conversions

When users have a great experience, they're far more likely to make a purchase, sign up for something, or take your desired action. As a result, conversion rates increase. A high-performing site removes barriers and friction, making it easier for users to complete their intended goals and objectives. Additionally, faster load times can reduce the risk of cart abandonment and improve overall conversion rates for e-commerce websites.

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Customer Loyalty

Consistently delivering a fast, smooth experience breeds user satisfaction over time. Therefore, loyal, returning customers become the norm, and customer lifetime value grows. A well-optimized website creates a positive brand perception and builds trust, encouraging users to continue engaging with your business. Loyal customers not only generate recurring revenue but also serve as valuable advocates for your brand, contributing to long-term growth and success.

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Core Web Vitals Services By Supreme Technologies

Our agency has been dedicated to enhancing website performance for clients worldwide over the past ten years. Through our extensive experience, we have cultivated in-depth knowledge in optimizing high-traffic websites, such as eCommerce platforms, which require robust performance capabilities. Regardless of whether you seek to improve Core Web Vitals metrics for your online store, landing pages, or any other type of website, our team is ready to assist you. Feel free to reach out to us to discuss your specific requirements.

Evaluating Your Website's Core Web Vitals

We start by fully testing your website's Core Web Vitals performance. We look at real user data (scores from Google's tools and reports) as well as lab data (from testing tools like Lighthouse and Chrome DevTools). We also gather data on how actual users experience your site. Then our developers find the specific issues hurting your Core Web Vitals scores and list out all the optimizations and fixes needed.

Optimizing Core Web Vitals

Our optimization service includes the initial testing plus actually making improvements. We optimize your JavaScript, CSS, images, fonts, and more. We reduce page load times, eliminate content shifting around, and handle other performance issues. The goal is to get your site into the “Green” zone not just in test environments, but in the real world too. You’ll see better scores across the board. But most importantly, your site will load faster and run smoother for users on any device.

Setting Up User Monitoring

Tracking real-world Core Web Vitals scores is tricky. Reports from tools like PageSpeed Insights don't always tell the full story. For sites that live or die by their online presence, setting up Real User Monitoring to analyze actual user data is vital. We can create a special dashboard just for collecting and viewing your Core Web Vitals data from real user interactions.

Core Web Vitals Consulting

Maybe you tried optimizing before but it didn't work like you hoped. Or you need a new game plan, a code review, or help to understand all the different tools and data for Core Web Vitals. Our developers and SEO experts are here to answer any of your Core Web Vitals and website performance questions. We'll provide expert advice and consulting to get you on the right track.

Core Web Vitals Impact Overall Website Experience

Core Web Vitals are objective metrics that measure a website's performance and the user experience it delivers. Additionally, these metrics serve as valuable indicators of potential issues within the website's code, content, and other underlying aspects.

Largest Contentful Paint

Unsatisfactory Largest Contentful Paint (LCP) scores may be attributed to:

  • Prolonged Time to First Byte (TTFB)
  • JavaScript and CSS files blocking the rendering process
  • Client-side rendering (CSR) implementation

Interaction to Next Point

Poor Interaction to Next Paint (INP) scores could result from:

  • Excessive event handling on the web pages
  • Inefficient event processing logic
  • Rendering-blocking operations or scripts

Cumulative Layout Shift

Inadequate Cumulative Layout Shift (CLS) performance may stem from:

  • Dynamic content embedding
  • Unoptimized media file formats
  • Web fonts prone to Flash of Invisible Text (FOIT) or Flash of Unstyled Text (FOUT)

Get Great Core Web Vitals Scores

Enlist Our Optimization Expertise

Fixing poor Core Web Vitals scores across all your website pages can be really tough, especially for big e-commerce sites or other complex websites with lots of pages. But it's definitely doable. Let us show you the awesome results we got after optimizing a popular online store's Core Web Vitals.

Achieve Top-Notch Website Performance with Our Expertise

With 10 years of experience in website optimization, we know how to make any site super fast and improve performance metrics like Core Web Vitals. We'll help you attract more customers and grow your business.


  • Prolonged Time to First Byte (TTFB)
  • JavaScript and CSS files blocking the rendering process
  • Client-side rendering (CSR) implementation

What You Get With Us

  • Excessive event handling on the web pages
  • Inefficient event processing logic
  • Rendering-blocking operations or scripts

Talk to our pros soon, and we'll get your Core Web Vitals scores to the highest level within weeks.

Get in touch!