{"version":"1.0","provider_name":"Nizam SEO Community","provider_url":"https:\/\/www.nizamuddeen.com\/community","author_name":"NizamUdDeen","author_url":"https:\/\/www.nizamuddeen.com\/community\/profile\/discusswithnizam\/","title":"What is CLS (Cumulative Layout Shift)? - Nizam SEO Community","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"rr0F4svkrR\"><a href=\"https:\/\/www.nizamuddeen.com\/community\/terminology\/cls-cumulative-layout-shift\/\">What is CLS (Cumulative Layout Shift)?<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.nizamuddeen.com\/community\/terminology\/cls-cumulative-layout-shift\/embed\/#?secret=rr0F4svkrR\" width=\"600\" height=\"338\" title=\"&#8220;What is CLS (Cumulative Layout Shift)?&#8221; &#8212; Nizam SEO Community\" data-secret=\"rr0F4svkrR\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.nizamuddeen.com\/community\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","description":"What CLS Really Measures? CLS (Cumulative Layout Shift) measures visual stability\u2014how much visible content moves unexpectedly during page load or interaction. That \u201cunexpected\u201d part matters, because users didn\u2019t ask for the page to jump. This is why CLS is different from purely speed-focused metrics. It\u2019s not about \u201chow fast\u201d something appears\u2014it\u2019s about whether the page [&hellip;]","thumbnail_url":"https:\/\/www.nizamuddeen.com\/community\/wp-content\/uploads\/2025\/04\/TRLGB-Book-Cover.webp","thumbnail_width":1080,"thumbnail_height":1080}