Understanding Core Web Vitals and Page Speed
Google's Core Web Vitals are essential metrics that measure real-world user experience on your website.
Largest Contentful Paint (LCP)
Measures loading performance - should occur within 2.5 seconds.
Optimisation Strategies:
- Optimise server response times
- Remove render-blocking resources
- Optimise images and media
- Implement lazy loading
- Use CDN for faster delivery
Interaction to Next Paint (INP)
INP measures responsiveness. Aim for under 200 milliseconds. In 2024 it replaced First Input Delay as a Core Web Vital. It captures every tap and click, then reports the slowest.
Optimisation Strategies:
- Minimise JavaScript execution time
- Break up long tasks on the main thread
- Use web workers for heavy computations
- Optimise third-party code
- Implement code splitting
Cumulative Layout Shift (CLS)
Measures visual stability - should be less than 0.1.
Optimisation Strategies:
- Set size attributes for images and videos
- Reserve space for ads and embeds
- Avoid inserting content above existing content
- Use transform animations instead of layout changes
- Preload fonts to prevent FOIT/FOUT
Our Core Web Vitals Services
Comprehensive performance optimisation services to improve your website's Core Web Vitals scores. Our speed optimisation approach ensures maximum performance gains.
Performance Audit and Bottleneck Analysis
Comprehensive analysis of your website's Core Web Vitals performance.
- PageSpeed Insights analysis
- Real User Monitoring setup
- Performance bottleneck identification
- Competitive benchmarking
Technical Implementation: Image Optimisation and Caching
Hands-on optimisation of your website's performance metrics.
- Image optimisation and compression
- Code minification and bundling
- Caching strategy implementation
- CDN setup and configuration
Monitoring & Reporting
Ongoing performance monitoring and detailed reporting.
- Real-time performance monitoring
- Monthly performance reports
- Core Web Vitals tracking
- ROI and conversion impact analysis
Why Core Web Vitals Matter for Search Rankings and Conversion Rates
Core Web Vitals are part of Google's page experience signals. They are a confirmed ranking factor, measured on real visits at the 75th percentile. Optimising them is not just about technical performance. It directly improves user experience, responsiveness and search visibility.
- Improved search engine rankings
- Better user experience and engagement
- Higher conversion rates
- Reduced bounce rates
- Enhanced mobile performance
- Faster page load times
Faster, more stable pages tend to hold attention for longer, reduce bounce rates and give visitors a smoother path to enquiry. That is why we treat page speed as a core part of your technical SEO, not an afterthought.
Page Experience, Field Data and Ranking Factor
Core Web Vitals sit inside Google's page experience signals. They are a ranking factor. Google scores them on field data, not lab tests. Field data comes from real Chrome visits in the CrUX report. You can track it in Google Search Console and PageSpeed Insights. A page passes when 75% of visits are good.
How We Diagnose Poor Core Web Vitals Scores
Every slow page tells a story. We start by separating field data from lab data. Field data comes from real visitors through the Chrome User Experience Report. Lab data comes from controlled tests such as Lighthouse. Both matter, and they rarely agree perfectly.
Field data shows what your real audience experiences on real devices and networks. Lab data helps us reproduce and debug the problem in a stable environment. We use both so our fixes hold up in the wild, not just on a fast office connection.
From there we trace each metric to its root cause. A slow Largest Contentful Paint often points to a heavy hero image, a slow server response or render-blocking resources. A poor Cumulative Layout Shift usually traces back to images without dimensions, injected ads or late-loading fonts. Sluggish interactivity points to heavy JavaScript on the main thread.
Page Speed, User Experience and Search Rankings
Core Web Vitals sit at the intersection of engineering and marketing. A faster site is a better experience, and a better experience tends to convert more visitors into enquiries. Search engines reward that experience because it reflects genuine quality.
We map every technical change back to a business outcome. Faster loading lifts engagement. Stable layouts reduce accidental clicks and frustration. Snappy interactions keep people moving toward your call to action. Page speed is never just a number in a report; it is the difference between a visitor who stays and one who leaves.
Our Ongoing Optimisation Process
Performance work is not a one-off project. Third-party scripts creep in, images get uploaded without compression and new features add weight. We monitor your Core Web Vitals continuously, flag regressions early and keep your pages fast as the site grows.
Ready to Optimise Your Core Web Vitals?
Get a free performance audit and discover how we can improve your website's page speed, user experience and search rankings.