Building a Better Web - Part 1: A faster YouTube on web
A case study of changes the YouTube Web team made to improve performance, increase their Core Web Vitals pass rates and lift key business metrics.
Case Study
Learn why and how other developers have used the web to create amazing web experiences for their users.
How Rakuten 24's investment in Core Web Vitals increased revenue per visitor by 53.37% and conversion rate by 33.13%
By measuring real users' Web Vitals, Rakuten 24 also found that a good Largest Contentful Paint (LCP) can lead to a conversion rate increase of 61.13%.
How GoDaddy's Websites + Marketing service improved customer Core Web Vitals by 75%
A case study of changes GoDaddy implemented to improve website performance for millions of sites, helping them to achieve good PageSpeed Insights and Core Web Vitals scores.
Luxury retailer Farfetch sees higher conversion rates for better Core Web Vitals
How the e-commerce fashion retailer correlated Core Web Vitals and performance metrics with business metrics, saw an increase in KPIs and built a "Performance Business Case Calculator" to drive product decisions and a performance culture.
Yahoo! JAPAN's password-free authentication reduced inquiries by 25%, sped up sign-in time by 2.6x
Learn about how Yahoo! Japan built a passwordless identity system.
How RebelMouse grew loyalty and engagement by optimizing Core Web Vitals
A case study measuring the full impact and benefits of high performance scores on Core Web Vitals.
MishiPay's PWA increases transactions 10 times and saves 2.5 years of queuing
Learn how switching to PWA helped MishiPay's business.
How The Economic Times passed Core Web Vitals thresholds and achieved an overall 43% better bounce rate
Optimizing Core Web Vitals on The Economic Times website significantly improved the user experience and substantially reduced bounce rate across the entire website.
How Terra improved user engagement thanks to Dark Mode
By displaying a dark theme to users that prefer dark mode on their devices, Terra reduced the bounce rate by 60% and increased the pages read per session by 170%.
How QuintoAndar increased conversion rates and pages per session by improving page performance
A project focused on optimizing Core Web Vitals and migrating to Next.js resulted in a 5% increase in conversion rates and a 87% increase in pages per session.
Kapwing: Powerful video editing for the web
Creators can now edit high-quality video content on the web with Kapwing, thanks to powerful APIs (like IndexedDB and WebCodecs) and performance tools.
SVGcode: a PWA to convert raster images to SVG vector graphics
SVGcode is a Progressive Web App that lets you convert raster images like JPG, PNG, GIF, WebP, AVIF, etc. to vector graphics in SVG format. It uses the File System Access API, the Async Clipboard API, the File Handling API, and Window Controls Overlay customization.
Improving Core Web Vitals on the Mail.ru home page resulted in an average 10% increase in conversion rates
Several months of work to improve Core Web Vitals on the home page of Mail.ru resulted in a 60% increase in the 75th percentile in Cumulative Layout Shift (CLS), boosting average session time by 2.7% and conversion rates of core sections by more than 10%.
How Renault improved its bounce and conversion rates by measuring and optimizing Largest Contentful Paint
The team analyzed data from 10 million visits on its landing pages and found a strong correlation between Largest Contentful Paint and conversion rate.
How Swappie increased mobile revenue by 42% by focusing on Core Web Vitals
Finding correlation between site performance and business metrics was the key to driving the success of their optimization efforts.
How committing to Core Web Vitals increased Netzwelt's advertising revenues by 18%
The relaunched website also sees ad viewability of over 75%, bounce rates reduced by 50%, and page views up by 27%.
Blibli's PWA generates 10x more revenue per user than their previous mobile website
How Blibli achieved a 42% reduction in bounce rate, an 8x improvement in mobile conversion rate, and 2.5x more pages per session.
Improving Cumulative Layout Shift at Telegraph Media Group
Within a couple of months the leading UK news website managed to improve their
75th percentile CLS by 250% from 0.25 to 0.1.
The business impact of Core Web Vitals
This article will help you understand how Core Web Vitals correlate with key business metrics by exploring examples of companies which have already see positive impact for their users and business.
Orange: New PWA converts 52% better on mobile
The new PWA also has an average loading time 30% faster than the old site and has improved bounce rate 12% and session depth 18%.
How Zalando reduced performance feedback time from 1 day to 15 minutes with Lighthouse CI
The web team at Zalando found that integrating Lighthouse CI enabled a proactive approach to performance,
with automated status checks able to compare the current commit to the main branch to prevent performance regressions.
Lowe's website is among fastest performing e-commerce websites
By building an automated performance testing and monitoring system, the Lowe's Site Speed Team test pull requests against performance budgets, and prevent performance regressions going into production.