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24 documents tagged with “Metrics”

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Metrics.

Chrome UX Report: Real User Speed Data from Google

The Chrome UX Report (CrUX) is a public dataset provided by Google, collecting and anonymously analyzing real user experience data when browsing the web with the Chrome browser.

CLS Metric Optimization

Let’s explore together how to avoid CLS issues and how you can fix them when they occur.

Cookie Banners and Web Speed

Got your website speed fine-tuned? Great, but perhaps you haven’t deployed a cookie banner yet.

Core Web Vitals

Core Web Vitals (CWV) is a fundamental set of metrics from Google designed to capture website loading speed and user experience. Let’s explore what metrics it includes, why they matter, and how to measure them.

Cumulative Layout Shift (CLS) Metric: How to Identify and Eliminate Unwanted Page Shifts

Annoyed when an ad pushes away the text you’re reading? Frustrated when content jumps just as you’re about to click, causing a misclick?

First Contentful Paint (FCP)

First Contentful Paint (FCP) is a metric that measures the time from when a page starts loading to when any part of the page’s content is rendered.

Get Your HEAD Straight

You love WebExpo and you love performance. Plus, we love Harry Roberts because his lectures and articles always dive deep.

How to Find the LCP Element?

To optimize LCP, it is crucial to identify the "LCP element," which is the largest element within the visible part of the browser.

INP Metric: 7 Tips for Optimization

INP isn’t the easiest metric to optimize, so we’ve selected the most common issues and solutions from our experience.

Interaction to Next Paint (INP): Tackling Slow Interactions

Google introduces the new Interaction to Next Paint (INP) metric, set to replace the First Input Delay (FID) metric among the top three Core Web Vitals metrics in March 2024.

JS Long Tasks (JSLT) Metric: When Your Website Forgets to Breathe

We explain how the JS Long Tasks metric measures digital traffic jams caused by long tasks and what these jams could mean for your users and your business.

Largest Contentful Paint (LCP) Metric: A Guide to Faster Web Loading

The world of the Largest Contentful Paint (LCP) metric is akin to the thrill of a high-speed racetrack—it’s an endless race against time.

Lighthouse Performance Score (LPS)

The Lighthouse Performance Score (LPS) is a synthetic metric used to assess website speed and performance, provided by the Lighthouse tool.

Metric “Total Third-Party JS Blocking Time” (3PBT)

The “Total Third-Party JS Blocking Time” metric. An internal PageSpeed.ONE monitoring indicator that lets you focus more on issues caused by third-party components, potentially degrading your interaction metric (INP).

Optimizing the LCP Metric

Join us as we explore common issues with the Largest Contentful Paint (LCP) metric and how to optimize it most effectively.

PageSpeed.ONE Score (SPS): How Do We Calculate User Web Speed?

Introducing a single number, a "proxy metric" for Core Web Vitals on both mobile and desktop. We call it the "PageSpeed.ONE Score" (SPS).

PageSpeed.ONE Study: Impact of Chat Widgets on Website Speed

Live chat is used by twenty percent of Czech e-shop operators. But how do these components affect website speed?

Performance Budgets (Web Speed Limits)

Performance budgets are a methodology designed to maintain the speed of web pages at a predetermined level. Think of a "budget" as a set limit for various metrics.

Test: Is It Better to Have Many Small CSS Files or One Large One?

At PageSpeed.ONE, we often find ourselves in "evergreen" discussions that divide the team. One perennial question is: Is it faster to have many small CSS files divided by components, or one large file?

Time To First Byte (TTFB)

TTFB reflects the speed of the server (or infrastructure), the server-side application, and also the network speed between the server and the user’s browser.

Total Blocking Time (TBT) Metric

Total Blocking Time (TBT) is a web speed metric indicating the total time during which the rendered page cannot respond to user inputs.

Types of Web Speed Measurements: Synthetic, Chrome UX Report, and Real User Monitoring

Let's clarify the differences between various types of web speed measurements. We’ll discuss synthetic data (“synth”), Google user data (“CrUX”), and data from all users (“RUM”).

Web Compression with Gzip and Brotli: Are You Doing It Right?

At PageSpeed.ONE, we often delve into very specific issues. Yet, I’m still amazed at the depths we reach. It was the same with data compression, which we’ll explore in this article.

Why Optimize Web Speed?

Psychology, conversions, and Google. Why should you also have a fast website?

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