Core Web Vitals Optimization

Core Web Vitals that
actually pass

LCP, INP, and CLS fixes backed by real-user and lab data, not generic advice. Every page is audited, optimized, and monitored so speed gains stick instead of quietly slipping back.

LCP / INP / CLSImage & Script OptimizationCaching & CDNOngoing Monitoring
130+
Vitals Projects Delivered
96
Avg. Lighthouse Score
2.1×
Avg. Load Speed Improvement
6+ Yrs
Performance Optimization Experience
Our Process

How we optimize step by step

A structured process ensures nothing gets missed, from initial audit to fully monitored, sustained performance gains.

  1. 01 Discover

    Audit & Metrics Baseline

    Real-user and lab data pulled for LCP, INP, and CLS across every key page, so fixes are prioritized by what's actually hurting your scores.

  2. 02 Diagnose

    Root Cause & Fix Strategy

    Render-blocking scripts, layout shifts, and slow interactions traced to their source, with a prioritized fix plan built around real impact, not guesswork.

  3. 03 Optimize

    Implementation & Regression Testing

    Image, script, and layout fixes implemented page by page, retested against real-user and lab data before anything reaches production.

  4. 04 Monitor

    Launch & Ongoing Monitoring

    Search Console and Core Web Vitals monitoring set up at launch. Plus 30-day post-launch tracking to catch regressions before they hurt rankings.

What's Included

Every Core Web Vitals service we offer

Audits, image and script fixes, caching, or structural rebuilds, we cover the entire performance optimization process, not just the parts that are easy to template.

Core Web Vitals Audits

A full diagnostic of LCP, INP, and CLS across your key pages, with root causes identified and fixes prioritized by expected score impact.

  • LCP / INP / CLS
  • Diagnostics
  • Prioritized Fixes

Image & Asset Optimization

Image compression, modern formats, lazy loading, and responsive sizing configured to cut load weight without visibly sacrificing quality.

  • Image Compression
  • Lazy Loading
  • Responsive Assets

JavaScript & Render-Blocking Fixes

Code splitting, deferred scripts, and third-party tag audits that get interactive elements responding fast instead of freezing the main thread.

  • Code Splitting
  • Third-Party Scripts
  • Main Thread Work

Layout Stability Fixes

Reserved space for images, ads, and dynamic content, plus font-loading fixes, so pages stop jumping around while users are trying to read or click.

  • CLS Fixes
  • Font Loading
  • Reserved Layout Space

Caching & CDN Configuration

Browser and edge caching rules, CDN setup, and asset delivery tuned so repeat visits and global audiences both load fast.

  • Caching Rules
  • CDN Setup
  • Edge Delivery

Legacy Site Performance Rebuilds

Rebuilding render-critical parts of legacy sites for teams whose Core Web Vitals issues are structural, not fixable with a few incremental tweaks.

  • Performance Rebuild
  • Legacy Sites
  • Structural Fixes

Mobile Performance Optimization

Mobile-specific throttled testing and fixes, since mobile scores are usually where Core Web Vitals problems hit hardest and rankings suffer most.

  • Mobile Testing
  • Throttled Conditions
  • Real-World Devices

Ongoing Monitoring & Regression Support

Continuous Core Web Vitals monitoring and fixes as new content and features ship, so a good score doesn't quietly slip over time.

  • Monitoring
  • Regression Fixes
  • Support
What You Get

Every deliverable included

  1. Full Core Web Vitals Audit Report

    A page-by-page breakdown of LCP, INP, and CLS issues, prioritized by expected impact on your score and rankings.

  2. Implemented Performance Fixes

    Image, script, and layout fixes implemented directly on your site, not just handed over as a list of recommendations.

  3. Before-and-After Lighthouse Report

    A side-by-side comparison of lab and real-user metrics before and after optimization, so the impact is easy to see.

  4. Caching & CDN Configuration

    Browser and edge caching rules configured and documented, so future changes don't accidentally undo the performance gains.

  5. Mobile Performance Report

    A dedicated mobile score breakdown, since mobile is where most Core Web Vitals problems and ranking risk concentrate.

  6. 30-Day Monitoring Window

    Post-launch monitoring for score regressions and quick fixes at no extra cost.

Selected Work

Vitals projects we've shipped

A cross-section of performance work, from full-site rebuilds to targeted mobile and interaction fixes.

SaaS Marketing Site

B2B SaaS Vitals Overhaul

Full Core Web Vitals overhaul for a B2B SaaS company's marketing site. Lighthouse performance score went from 41 to 96 and LCP dropped under 1.8s.

  • LCP Fixes
  • Script Optimization
  • B2B SaaS
LeadPro

Dashboard Interaction Speed Fix

INP fixes across a 40-user sales dashboard riddled with slow filters and dropdowns. Interaction latency dropped from 480ms to 90ms.

  • INP Fixes
  • Dashboards
  • Main Thread Work
E-Commerce Fashion & Lifestyle

Meridian Boutique Speed Rebuild

Image and layout optimization for a DTC fashion brand's storefront. Page load time dropped from 4.8s to 1.2s and organic revenue rose 34%.

  • Image Optimization
  • CLS Fixes
  • E-Commerce
Logistics & Fleet Management

RouteWise Mobile Vitals Fix

Mobile-specific Core Web Vitals fixes for a fleet management company's dispatcher app. Mobile Lighthouse score rose from 38 to 91.

  • Mobile Optimization
  • Real-Time Data
  • Throttled Testing
Legacy Modernization

Harbor Freight Performance Rebuild

Structural performance rebuild of a decade-old operations tool's render-critical pages. Page load time dropped 78% with zero downtime.

  • Performance Rebuild
  • Legacy Sites
  • Structural Fixes
Consumer Content

Roastworks Coffee Speed Fixes

Font-loading and layout-shift fixes for a coffee subscription brand's blog and product pages. CLS dropped from 0.34 to 0.02.

  • CLS Fixes
  • Font Loading
  • Content Site
Client Voices

What it's like to work with us

We measure success in load times and stable scores, not just how a page looks. Here's what a few clients had to say.

Our site took nine seconds to load on mobile because nobody had touched the render path in years. The optimization brought it under two, and our organic traffic more than doubled.
Ananya Kapoor
Head of Product, WooCommerce
They found layout shift issues we didn't even know were costing us conversions, and fixed them without touching the parts of the site that were already working.
Rohan Mehta
Founder, Meridian Boutique
The audit traced every slow interaction back to a specific script or asset, which made the fix list feel targeted instead of a vague list of best practices.
Daniel Cruz
Operations Lead, Harbor Freight
Transparent Pricing

Simple, honest pricing

No hidden fees, no surprises. Choose a package that fits your scope or talk to us for a custom quote.

Starter

₹ 15Konwards

Perfect for a focused audit and fix pass on your highest-traffic pages.

  • Up to 10 pages
  • Full Core Web Vitals audit
  • Image & asset optimization
  • Unlimited revisions
  • Basic caching setup
  • Before-and-after Lighthouse report
  • 1 year free support
  • Full structural rebuild
  • Mobile-specific optimization
  • Ongoing monitoring
Get Started

Enterprise

Custom

For large content platforms, e-commerce catalogs, or teams needing structural rebuilds or an embedded performance team on retainer.

  • Unlimited pages
  • Full structural performance rebuild
  • E-commerce & catalog-scale optimization
  • Unlimited revisions
  • Advanced caching & CDN architecture
  • Continuous monitoring & regression fixes
  • 1 year free priority support
  • Dedicated performance lead
  • Monthly retainer available
Talk to Us
FAQ

Common questions

Anything else on your mind? Drop us a message at info@sitefiy.com

Core Web Vitals are Google's metrics for real-world user experience: Largest Contentful Paint (LCP) measures loading speed, Interaction to Next Paint (INP) measures responsiveness, and Cumulative Layout Shift (CLS) measures visual stability. They factor into search rankings and directly affect conversion rates.

They're one of many ranking factors, not the dominant one, but poor scores can hold back an otherwise strong page, and they directly affect bounce rate and conversions regardless of ranking impact. We treat them as worth fixing for the user-experience gains alone.

A focused audit and fix pass on key pages typically takes 2–4 weeks. Sites with structural performance issues that need a partial rebuild usually take 6–10 weeks. We share a detailed timeline after the initial audit.

Not meaningfully. Most fixes happen under the hood: compressing images, deferring scripts, reserving layout space. Where a visible tradeoff exists, like image quality, we test it against the smallest change that solves the metric.

Yes. Mobile and desktop are tested and scored independently, since they often have very different bottlenecks. Mobile is usually where Core Web Vitals problems hit hardest, so we prioritize it accordingly.

Often, yes, through techniques like deferred loading, facade patterns, or self-hosting. Where a third-party script's impact truly can't be mitigated, we'll flag it clearly so you can weigh the tradeoff of keeping it.

No, and any provider that guarantees an exact score isn't being straight with you, since scores can vary by device, network, and test conditions. We focus on measurable, real-user metric improvements and report transparently on what changed.

We offer optional retainers for continued monitoring and regression fixes as new content and features ship. It's entirely opt-in, not bundled by default.
Ready to Begin

Let's fix a site
that finally passes

Tell us about your site and we'll get back within 24 hours with a tailored Core Web Vitals optimization proposal, no commitment required.