Here's a fact that hurts: for every extra second your website takes to load, you lose a meaningful share of your visitors. A slow website isn't a technical detail: it's a hole that customers leak out of every day.
This guide digs into the first pillar of a website that sells 24/7: speed.
What Core Web Vitals are
Google measures real experience with three metrics, the Core Web Vitals:
- LCP (Largest Contentful Paint): how long the main content takes to appear. Target: < 2.5s.
- INP (Interaction to Next Paint): how fast your site responds when the user clicks or types. Target: < 200ms.
- CLS (Cumulative Layout Shift): how much content "jumps" while loading. Target: < 0.1.
A website that loads in under 2 seconds can convert up to 30% more than one that takes 5.
Why it matters (double impact)
- Sales: the impatient visitor leaves before seeing your offer. Speed = more conversions.
- SEO: Core Web Vitals are a ranking factor on Google. A fast site ranks better, and it's also a prerequisite for AI to crawl you (AEO and GEO).
The 6 most common causes of slowness
- Heavy, unoptimized images (the number-one problem).
- Too many third-party plugins/scripts.
- Cheap, slow hosting.
- No caching or CDN.
- Bloated code (heavy themes and builders).
- Fonts and resources that block rendering.
How to speed up your website
- Compress and serve images in modern formats (WebP/AVIF) at the right size.
- Cut third-party scripts to the bare minimum.
- Use caching and a CDN.
- Choose modern technology: frameworks like Next.js/React produce far faster sites than a plugin-heavy WordPress.
- Measure with PageSpeed Insights and Google Search Console.
The advantage of building fast from the start
Optimizing a slow website costs more than building it right from scratch. That's why we develop with modern technology, speed-first, from day one: it's the foundation of a website that converts and ranks. If you're choosing who builds it, see how to choose a web development agency.
Let's speed up your website
At Crisodevelop we build ultra-fast websites, optimized for Core Web Vitals, SEO and conversion. If your site is slow, I'll show you what to change.
👉 Book your free strategy call
Do you know how fast your website is? Measure it and share this guide.
