Check Website Performance & UX with Chrome UX Report

When was the last time you felt that a website was fast? You clicked a link, the page appeared instantly, everything was stable — no flickering, no delays. That’s what great performance feels like. And the Chrome UX Report helps you measure exactly that — not just how fast your server responds, but how real users experience your site.

The data comes from real Chrome users around the world, capturing actual browsing behavior. It’s one of the most honest and reliable ways to understand how people experience your pages in everyday situations. Tools like the Website Auditor by Oleant.net visualize this data in a clear way — but the main goal stays simple: to make your site feel fast and effortless for everyone.

Why Website Performance Is More Than Just Speed

Performance isn’t only about milliseconds — it’s about user trust. A fast, stable site keeps visitors engaged, reduces bounce rates, and builds confidence. Google knows this too — that’s why the Core Web Vitals are part of its ranking signals. They measure how quickly users see content, how stable the layout is, and how responsive the page feels.

Let’s go through the most important metrics, one by one, and understand what they mean — in simple words, with real-world tips to improve them.

The Core Web Vitals Explained

1. Time to First Byte (TTFB)

Imagine you knock on a door, and wait for the first response — that’s TTFB. It measures how long your browser waits before the server sends back the first byte of data.

• Good: under 800 ms

• Needs improvement: 800–1800 ms

• Poor: above 1800 ms

High TTFB usually means the server or backend is slow — maybe due to database delays, bad caching, or overloaded hosting. Try optimizing your server response, using a CDN, and caching dynamic content to reduce waiting time.

2. First Contentful Paint (FCP)

FCP marks the moment when something — text, an image, or background — first appears on the screen. Before that, it’s just a blank white page. A fast FCP gives users confidence that “the page is working.”

• Good: under 1.8 s

• Needs improvement: 1.8–3 s

• Poor: above 3 s

To improve FCP, focus on loading critical CSS early, lazy-load heavy scripts, and defer non-essential resources. Users don’t want everything instantly — they just want something visible right away.

3. Largest Contentful Paint (LCP)

The LCP measures when the largest visible element — often a banner image or headline — fully appears. This is the point when users feel, “Okay, the page has loaded.”

• Good: under 2.5 s

• Needs improvement: 2.5–4 s

• Poor: above 4 s

Optimize your LCP by using modern image formats (WebP, AVIF), setting explicit sizes, and using preload hints for hero images. A good hosting setup also helps reduce loading time dramatically.

4. Cumulative Layout Shift (CLS)

You’re about to tap a button, and suddenly it jumps away — annoying, right? That’s a high CLS. It measures how much the page layout shifts unexpectedly as it loads.

• Good: 0–0.1

• Needs improvement: 0.1–0.25

• Poor: above 0.25

Avoid this by defining size attributes for all images and videos, reserving space for ads, and using font-display settings properly. Stability makes users feel in control — and that’s a big UX win.

5. Interaction to Next Paint (INP)

INP tells you how responsive your site feels when users interact — clicking, typing, scrolling. It replaces the older “First Input Delay” and gives a more realistic picture of your site’s responsiveness.

• Good: under 200 ms

• Needs improvement: 200–500 ms

• Poor: above 500 ms

Heavy JavaScript is usually the main culprit. Split large scripts, defer third-party code, and prioritize user interaction. Users love pages that “just respond.”

6. Round Trip Time (RTT)

RTT is the time it takes for data to travel from your browser to the server and back. Think of it as a “ping” — the shorter the round trip, the faster the page feels.

You can reduce RTT by hosting content closer to your users, using CDNs, and optimizing DNS resolution. Even small gains here can make a noticeable difference, especially on mobile.

7. LCP Image Metrics – TTFB, Render Delay, and Load Duration

Images are often the heaviest assets on a page. The Chrome UX Report breaks down how quickly the main LCP image is requested, downloaded, and rendered.

Use modern formats, compress without quality loss, and always specify image dimensions. A fast-loading hero image can set the tone for the entire user experience.

How to Use the Report Effectively

Whether you’re an SEO specialist or managing your own site, these numbers are clues — not just stats. They show where to focus your efforts: which assets are too big, which scripts block rendering, and what slows users down the most.

Start small. Fix the biggest slowdowns first — server response, images, then interactivity. Every improvement makes the experience smoother and, yes, helps your rankings too.

Conclusion: Speed You Can Feel

At the end of the day, users don’t think in milliseconds — they think in emotions. A fast, responsive site simply feels better. It builds trust, keeps visitors engaged, and lets your message shine through.

The Chrome UX Report isn’t just a technical tool — it’s a window into how people actually experience your work. Once you understand it, you can create sites that not only perform well, but also feel alive, intuitive, and human.