If your website loads slowly, jumps around as it loads, or struggles on mobile—Google notices. And more importantly, your users do too.
In this Core Web Vitals Guide, you’ll learn what Core Web Vitals are, why they matter in SEO, and how to fix them to improve rankings and deliver a seamless user experience. Whether you’re a business owner in Bangladesh or a digital marketer, this guide is your blueprint for improving technical SEO in 2025.
Let’s dive in.
What Are Core Web Vitals?
Core Web Vitals are a set of metrics defined by Google to measure real-world user experience. These include:
Largest Contentful Paint (LCP) – Measures loading performance.
Cumulative Layout Shift (CLS) – Measures visual stability.
Interaction to Next Paint (INP) – Measures interactivity (replacing First Input Delay in 2024).
Together, these form the foundation of Google’s Page Experience Update, affecting how your site ranks in search results.
Why Core Web Vitals Matter for SEO in Bangladesh
Bangladesh is a mobile-first country. Over 80% of users access the internet via mobile. Slow sites, unstable layouts, or poor user experience directly result in:
Higher bounce rates
Lower conversion
Reduced trust in your brand
If you want to rank higher for competitive keywords like “SEO services in Bangladesh” or “digital marketing Dhaka”, you must pass Core Web Vitals.
How Core Web Vitals Work: A Simplified Breakdown
| Metric | Target Score | Meaning |
| Largest Contentful Paint (LCP) | ≤ 2.5s | Main content loads quickly |
| Cumulative Layout Shift (CLS) | ≤ 0.1 | Page elements stay stable during load |
| Interaction to Next Paint (INP) | ≤ 200ms | Your site responds quickly to user actions |
These metrics are directly tied to user satisfaction. When users stay longer, click more, and bounce less—your SEO rankings improve.
Tools to Measure Core Web Vitals
Google PageSpeed Insights
Lighthouse (Chrome DevTools)
Google Search Console (Page Experience Report)
GTMetrix
Web Vitals Chrome Extension
If you’re unsure how to run these tests, check our Website Audit Guide.
How to Improve Core Web Vitals: Step-by-Step Guide
Here’s how to tackle each Core Web Vital issue for your site:
1. Improve Largest Contentful Paint (LCP)
Problems:
Slow server response time
Large images or videos
Render-blocking CSS or JS
Fixes:
Use a CDN for faster delivery
Compress images (use WebP format)
Use lazy loading for media
Optimize critical CSS
2. Reduce Cumulative Layout Shift (CLS)
Problems:
Ads or popups pushing content down
Fonts loading late
Images or embeds without defined dimensions
Fixes:
Always specify width and height for images/videos
Reserve space for ads or dynamic content
Use font-display: swap to load fonts asynchronously
3. Minimize Interaction to Next Paint (INP)
Problems:
Heavy JavaScript
Complex third-party scripts
Unoptimized code execution
Fixes:
Minimize JS and use code splitting
Delay third-party scripts like chat widgets
Use browser caching and preloading
How Core Web Vitals Affect SEO Rankings
Sites that meet all Web Vital thresholds rank higher than slow, unstable competitors.
Your site will appear in the Top Stories carousel only if you pass Core Web Vitals.
Google emphasizes mobile UX, especially in local search—critical for businesses in Bangladesh.
Real Results from Core Web Vitals Optimization
A travel website in Dhaka partnered with Asraf Uddin for a full Core Web Vitals overhaul. Here were the results:
| Metric | Before | After |
| LCP | 4.6s | 2.1s |
| CLS | 0.26 | 0.04 |
| INP | 380ms | 150ms |
| Bounce Rate | 71% | 42% |
| Organic Traffic | 1,100/month | 3,500/month |
Ranking for keywords like “travel SEO Bangladesh” and “best tour operator Dhaka” improved dramatically.
FAQs: Core Web Vitals Guide
1. How often should I check my Core Web Vitals?
Every quarter or after a major redesign. Use Google Search Console and Lighthouse for insights.
2. Can Core Web Vitals affect my SEO rankings?
Yes. Google uses them as part of the Page Experience algorithm, which directly influences search rankings.
3. Do Core Web Vitals affect mobile rankings?
Absolutely. Core Web Vitals are more critical on mobile than desktop for ranking locally and globally.
4. What’s the easiest fix for bad LCP or CLS?
Start with image compression, lazy loading, and defining dimensions in HTML.
5. Can I fix Core Web Vitals without a developer?
Some optimizations (like image compression and plugin management) you can do yourself. But deeper fixes may need technical support.
Why Hire Asraf Uddin for Core Web Vitals & SEO in Bangladesh?
Core Web Vitals aren’t just about speed—they’re about ranking, trust, and conversions. When you work with Asraf Uddin, you’re choosing the Best Digital Marketer in Bangladesh who understands both technical and strategic SEO.
Why Choose Asraf? – Top Digital Marketer in Bangladesh
7+ years of experience in technical SEO
Specialized in Bangladesh-based businesses
Offers full SEO audits, speed optimization, and UX testing
Proven track record of SEO success across industries
Let’s Boost Your Web Performance—Together
Whether you’re running an e-commerce store, service website, or blog, Core Web Vitals matter. Get ahead of your competitors and rank higher on Google.
👉 Visit asrafuddin.com today to schedule a free Core Web Vitals audit and optimize your site with the help of the Top SEO Expert in Dhaka.