Core Web Vitals & Speed Optimization Case Study
- 16 Feb 2026
- 11:58 PM
In this project, I optimized the website’s technical SEO and performance to improve loading speed, Core Web Vitals, and overall user experience. The goal was to create a fast, stable, and search-engine-friendly website structure.
Project Overview
Step 1: Performance Analysis
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Audited the website using performance testing tools.
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Identified loading speed issues, render-blocking elements, and layout shift risks.
Goal: Detect technical problems affecting speed and UX.
Step 2: Core Web Vitals Optimization
Improved key performance metrics:
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First Contentful Paint (FCP)
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Largest Contentful Paint (LCP)
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Cumulative Layout Shift (CLS)
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Total Blocking Time (TBT)
Goal: Meet Google’s Core Web Vitals standards.
Step 3: Page Speed Optimization
Applied technical improvements such as:
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Image size optimization
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Lazy loading setup
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Script & CSS optimization
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Reduced unnecessary code load
Goal: Faster page load and smoother experience.
Step 4: Mobile Performance Focus
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Ensured mobile-first optimization
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Improved mobile speed and responsiveness
Goal: Better performance for mobile users (Google’s primary index).
Step 5: Technical SEO Enhancements
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Improved site structure stability
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Reduced layout shifting
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Enhanced accessibility & best practice signals
Goal: Stronger technical SEO foundation.
Final Result (Very Strong Part)
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Performance Score: 100
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Accessibility: 91
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Best Practices: 100
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SEO Score: 77
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LCP: 1.3s
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CLS: 0.007
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Total Blocking Time: 0 ms
The site achieved excellent performance metrics, creating a fast, stable, and user-friendly experience aligned with Google’s ranking signals.
Challenges
Identifying the Key Problems
Low Conversation Rate
Lack of Trust Signals
Poor Mobile Experience
Solutions
Strategy & Implementation
Improved Call-To-Actions
Added Trust Elements
Mobile Optimization
Results
Measuring the Success