4 documents tagged with “CLS”
You know the moment: you open an article, start reading, and suddenly an ad shoves the text aside. Or right before you tap a button the content jumps and you end up clicking something else. Exactly those unwanted shifts are what CLS (Cumulative Layout Shift) measures. Google counts it as one of the three Core Web Vitals and sets the passing threshold at 0.1.
At PageSpeed.ONE we track CLS across every monitored domain. Below you will find our articles on what makes pages jump most often (images and videos without dimensions, dynamically injected content, late-loading web fonts, banner ads) and how to fix them down for good.
“Domains” Report
The “Domains” report displays the speed status of measured domains. It is the most crucial report when it comes to the speed development of the entire website.
CLS: How to Maintain Element Heights (Images, JS Components, iframes…)
Discover why and how to ensure dimensions for elements like <img>, <iframe>, or JavaScript components that are asynchronously inserted into a page, using HTML or CSS.
Optimising CLS Metrics
Let’s explore how to avoid CLS issues and how to fix them if they occur.
The Cumulative Layout Shift (CLS) Metric: How to Identify and Eliminate Unwanted Page Shifts
Fed up with ads that push the text you're reading out of view? Annoyed when content jumps just as you’re about to click, making you click elsewhere?