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Core Web Vitals

Core Web Vitals are Google's page experience metrics — and they're a confirmed ranking factor. Slow load times, layout shifts, and sluggish interactivity don't just frustrate users — they cost you rankings. Prospelle diagnoses and fixes the performance issues that hold your pages back.

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40% Of visitors leave sites that take 3+ seconds to load

70% Of sites fail at least one Core Web Vital

24% Less likely to abandon pages with good CWV scores

What’s Included

Every engagement is tailored to your business, but always includes:

Core Web Vitals audit (LCP, INP, CLS)
Page speed optimization
Image optimization and lazy loading
JavaScript and CSS optimization
Server response time improvements
Layout shift identification and fixes
Mobile performance optimization
Performance monitoring setup

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No commitment. We'll review your current presence and identify opportunities.

The Challenge

Sound Familiar?

Most local businesses we work with are dealing with some combination of these problems.

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Without a Strategy

Your site fails Core Web Vitals in Google Search Console
Pages load slowly — especially on mobile devices
Content jumps around as the page loads (layout shifts)
Buttons and links are slow to respond when clicked
Page speed is hurting your Google rankings
Your dev team doesn't know how to fix performance issues

✦

With Prospelle

Passing Core Web Vitals scores across your key pages
Faster page loads that keep visitors engaged
Stable layouts with no content shifting
Responsive interactions that feel instant
Better rankings from improved page experience signals
Ongoing monitoring to catch regressions early

Our Process

How We Get You There

Every engagement follows our proven approach, tailored to your specific market and competitive landscape.

Performance Audit

We analyze Core Web Vitals for your key pages using both field data (real users) and lab data (controlled tests). Every issue identified with its impact on each metric.

Optimization Plan

We create a prioritized plan — biggest impact fixes first. Your dev team gets specific, actionable instructions for each fix.

Implementation

We work with your dev team to implement fixes — image optimization, code splitting, render-blocking resource elimination, layout stabilization, and server-side improvements.

Monitoring

We set up real-user monitoring and track CWV scores over time. Performance regressions are caught early before they impact rankings.

What You Get

Deliverables & Outcomes

We don’t believe in mystery — you know exactly what you’re paying for.

CWV Audit Report

Detailed analysis of LCP, INP, and CLS for your key pages. Each issue documented with impact, cause, and recommended fix.

Performance Optimizations

Image compression, lazy loading, code optimization, render-blocking elimination, and layout stabilization implemented across your site.

Mobile Performance Report

Mobile-specific analysis and optimization — mobile users often have the worst CWV experience and represent the majority of traffic.

Before/After Metrics

Clear comparison of CWV scores before and after optimization. Measurable improvement documented for every key page.

Performance Monitoring

Ongoing CWV monitoring with alerts for regressions. Issues caught and addressed before they impact user experience or rankings.

Developer Guidelines

Performance best practices documentation for your dev team to prevent future regressions as new features and content are added.

Who This Is For

Is Core Web Vitals Optimization Right for Your Business?

If your site has performance issues flagged in Google Search Console, or if competitors are faster than you, CWV optimization directly impacts both rankings and user experience.

Google Search Console shows CWV warnings or failures
Your site feels slow, especially on mobile
Content jumps around during page load
You want to remove page speed as a ranking barrier

Related Services

our Technical SEO services — Broader technical optimization
SEO Audit — CWV as part of comprehensive audit
our On-Page SEO services — Page-level optimization

Resources

From Our Blog

Common Questions

Frequently Asked Questions

What are Core Web Vitals?

Core Web Vitals are three metrics Google uses to measure page experience: LCP (Largest Contentful Paint) measures loading speed, INP (Interaction to Next Paint) measures responsiveness, and CLS (Cumulative Layout Shift) measures visual stability. Together they determine your page experience score.

Are Core Web Vitals really a ranking factor?

Yes, Google confirmed page experience (including CWV) as a ranking signal. It's not the strongest factor, but in competitive markets where content quality is similar, CWV can be the tiebreaker. More importantly, better CWV means better user experience, which improves conversion rates.

How long does CWV optimization take?

The audit takes 1 week. Implementation typically takes 2-4 weeks depending on the complexity of issues and your development resources. Some quick wins (image optimization, lazy loading) can be deployed immediately.

Will this slow down our development process?

No. We work alongside your dev team, not against them. We provide specific technical guidance and review implementations. Long-term, the developer guidelines we provide actually speed up development by preventing performance regressions.

Can CWV be fixed without redesigning the site?

Usually, yes. Most CWV issues are caused by unoptimized images, render-blocking scripts, layout instability, and server configuration — all fixable without visual redesign. Occasionally, significant layout changes are needed to fix CLS issues.

How do I know if my CWV need work?

Check Google Search Console's Core Web Vitals report, or run your pages through PageSpeed Insights. If you see 'Poor' or 'Needs Improvement' ratings, there's room to improve.