Core Web Vitals measure how real visitors experience a page: how fast the main content loads, how quickly it responds to input and how stable the layout is. They influence user satisfaction and are part of Google’s page experience signals, so they matter for client sites.
What are the three metrics?
- Largest Contentful Paint (LCP): How quickly the main content appears. Aim for under about 2.5 seconds.
- Interaction to Next Paint (INP): How quickly the page responds when users click or tap. Aim for under about 200 milliseconds.
- Cumulative Layout Shift (CLS): How much the layout jumps while loading. Aim for a very low score, around 0.1 or less.
Check Google’s current guidance for exact thresholds, since recommendations can be updated.
What usually causes poor scores?
Large uncompressed images, render-blocking scripts, heavy page builders and plugins, slow hosting, unoptimised fonts, third-party chat and tracking widgets and ads or embeds that load without reserved space.
How do you fix them?
- Compress images, use modern formats and set explicit dimensions.
- Lazy-load below-the-fold media, but not the main hero image.
- Defer or remove scripts you do not need.
- Use caching and a content delivery network.
- Preload critical fonts and limit font variants.
- Audit plugins and widgets, and remove what does not earn its weight.
How do you measure properly?
Use field data, from Search Console or PageSpeed Insights, alongside lab tests. Field data reflects real visitors and is what matters most. Re-test after each change.
Does it affect rankings?
It is one signal among many. Great content still matters more, but a slow, jumpy site loses visitors before they read it.
The takeaway
Make performance part of every build, not a clean-up job. We can audit and fix a client’s site; see how our WordPress development work handles it.
How to hire Outsorcerer as your technical partner
Is a client site slow, jumpy or failing Core Web Vitals? We audit, fix and monitor performance white-label, and send you a before-and-after report you can share.
- Step 1: Book a free 15-minute call. Tell us the project, the market and the deadline. No generic quote, no sales script.
- Step 2: Get a scoped proposal. Fixed scope for a one-off build, or a monthly retainer for ongoing work. Regional pricing is on the Services page.
- Step 3: Start with a pilot. One small, real deliverable so you can judge our communication, quality and turnaround first.
- Step 4: Scale into a retainer. Your brand stays in front, our team stays behind it.
Book a free 15-minute call or contact us here if you’d rather write first.
