Speed is not a technical luxury; it is the first impression a visitor forms of you. A site that takes three seconds to show anything often loses the visitor before a single line is read. To measure that experience, search engines rely on three metrics known as Core Web Vitals.
The three metrics in plain words
- LCP (Largest Contentful Paint): how long the biggest element on the page takes to appear, usually the hero image or main heading. Good is under 2.5 seconds.
- INP (Interaction to Next Paint): how long the site takes to visually respond after a tap or click. Good is under 200 milliseconds. It replaced FID in 2024.
- CLS (Cumulative Layout Shift): do elements jump around while loading? Good is below 0.1.
What slows small sites down
In my work with company websites the same problems keep appearing: oversized phone-camera images, late-loading fonts, JavaScript libraries nobody uses, and third-party widgets (analytics, chat, ads) piling up silently.
Practical steps with fast results
- Compress and convert images to WebP or AVIF, sized for the space they actually fill.
- Set image dimensions in the markup so the browser reserves space and the layout does not jump.
- Lazy-load images below the first screen.
- Defer scripts that are not needed for the first render.
- Enable caching and compression on your host, and use a CDN for distant audiences.
- Audit third-party tools and remove what you do not need.
<img src="hero.webp" width="1200" height="630"
alt="Describe the image" fetchpriority="high">
<img src="gallery-1.webp" width="600" height="400"
alt="" loading="lazy">How to measure
Use PageSpeed Insights and Search Console, and look at real-user data, not only lab tests. Measure on mobile first, because that is where problems show up.
A fast site does not only please Google; it raises the share of visitors who keep reading and get in touch.
Start with images, since they are usually the biggest win, then measure again. If you want a review of your current site speed and a prioritized fix list, I am happy to help.
