{"id":7119,"date":"2025-10-08T12:57:16","date_gmt":"2025-10-08T10:57:16","guid":{"rendered":"https:\/\/taismo.de\/unkategorisiert\/lazy-loading-2\/"},"modified":"2026-07-27T23:14:53","modified_gmt":"2026-07-27T21:14:53","slug":"lazy-loading","status":"publish","type":"post","link":"https:\/\/taismo.de\/en\/what-is\/lazy-loading\/","title":{"rendered":"lazy loading"},"content":{"rendered":"<style>\n.taismo-art{display:grid;grid-template-columns:320px minmax(0,1fr);gap:36px;align-items:start}\n.taismo-art .toc-sticky{position:sticky;top:80px}\n.taismo-art .toc-sticky ol li{margin-bottom:9px}\n.taismo-art .toc-sticky ol a:hover{color:var(--toc-hover) !important}\n.taismo-art .taismo-main h2{scroll-margin-top:90px;margin-top:38px}\n.taismo-art .lead-def{font-size:1.15em;line-height:1.6;background:#f7f2ec;border-left:4px solid #ED8924;padding:16px 20px;border-radius:8px}\n.taismo-art table{border-collapse:collapse;width:100%;margin:18px 0}\n.taismo-art th,.taismo-art td{border:1px solid 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<\/g> <\/svg><\/div>\n<h3 style=\"text-align:center;color:#fff;margin:0 0 14px;font-size:1.1em\">Contents<\/h3>\n<ol style=\"margin:0;padding-left:1.2em;line-height:1.5;font-weight:600;color:#fff;font-size:0.9em\">\n<li><a href=\"#how-do-i-enable-lazy-loading-in-html\" style=\"color:#fff;text-decoration:none\">How do I enable lazy loading in HTML?<\/a><\/li>\n<li><a href=\"#why-lazy-loading-matters-for-seo\" style=\"color:#fff;text-decoration:none\">Why does lazy loading matter for SEO?<\/a><\/li>\n<\/ol>\n<\/aside>\n<div class=\"taismo-main\">\n<h1 class=\"brand-claim\">What is lazy loading?<\/h1>\n<p class=\"lead-def\"><strong>Lazy loading<\/strong>, also called deferred loading, is an optimization technique for online content, above all for <a href=\"https:\/\/taismo.de\/en\/what-is\/image-formats-on-web\/\">images<\/a> and videos on web pages. The point of lazy loading is to improve the loading time of a page: resources that sit outside the current browser window are only loaded once the visitor scrolls them into view. Instead of loading every element of a page at the same time, only the objects that are visible to the visitor right now get loaded.<\/p>\n<figure><img decoding=\"async\" src=\"https:\/\/taismo.de\/wp-content\/uploads\/2026\/07\/lazy-loading.png\" width=\"1200\" height=\"675\" alt=\"Lazy loading explained: images and videos outside the visible area are only loaded once the visitor scrolls them into view\" title=\"Lazy loading: images and videos load only when they scroll into view\" loading=\"lazy\"><\/figure>\n<p>This cuts the amount of data loaded at one time, which shortens loading times and lowers bandwidth use.<\/p>\n<h2 id=\"how-do-i-enable-lazy-loading-in-html\">How do I enable lazy loading in HTML?<\/h2>\n<p>To switch lazy loading on by hand in HTML, you use the <code>loading<\/code> attribute in your <code>&lt;img&gt;<\/code> and <code>&lt;iframe&gt;<\/code> tags. Here is a simple example of how lazy loading is implemented for an image:<\/p>\n<pre><code class=\"el-content\">&lt;img src=\"\/image-url.jpg\" loading=\"lazy\" alt=\"Description of the image\"&gt;\n<\/code><\/pre>\n<p>In this example the <code>loading=\"lazy\"<\/code> attribute is added to enable deferred loading of the image. The same works for videos and iframes:<\/p>\n<pre><code class=\"el-content\">&lt;iframe src=\"\/video-url\" loading=\"lazy\" width=\"560\" height=\"315\"&gt;&lt;\/iframe&gt;\n<\/code><\/pre>\n<p>By using the <code>loading=\"lazy\"<\/code> attribute the developer tells the browser that the element should be loaded later. Worth knowing: every current browser supports this technique.<\/p>\n<h2 id=\"why-lazy-loading-matters-for-seo\">Why does lazy loading matter for SEO?<\/h2>\n<p>Lazy loading matters for <a href=\"https:\/\/taismo.de\/en\/what-is\/seo\/\">search engine optimization<\/a> for several reasons. One of the biggest benefits is the gain in page loading speed. Because search engines such as Google treat <a href=\"https:\/\/taismo.de\/en\/what-is\/core-web-vitals\/\">page speed as one of their ranking factors<\/a>, lazy loading can directly help the position of your website in the search results.<\/p>\n<p>A faster website also gives visitors a better experience, which is a critical factor for SEO in its own right. Deferring content that sits outside the visible area lets server resources be used more efficiently and lifts the overall performance of the page. Lazy loading also brings the <a href=\"https:\/\/taismo.de\/en\/what-is\/bounce-rate\/\">bounce rate<\/a> down, because visitors are less likely to leave a slow page early.<\/p>\n<p>Whether lazy loading is set up correctly on your own pages, and where it still costs you loading time, is one of the points we look at in an <a href=\"https:\/\/taismo.de\/en\/seo-audit\/\">SEO audit<\/a>. More terms around speed and page experience are collected in the <a href=\"https:\/\/taismo.de\/en\/what-is\/\">SEO glossary<\/a>.<\/p>\n<\/p><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>IKI Contents How do I enable lazy loading in HTML? Why does lazy loading matter for SEO? What is lazy loading? Lazy loading, also called deferred loading, is an optimization technique for online content, above all for images and videos on web pages. The point of lazy loading is to improve the loading time of [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":7528,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_taismo_jsonld":"","taismo_jsonld":"{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/taismo.de\/en\/what-is\/lazy-loading\/#webpage\",\"url\":\"https:\/\/taismo.de\/en\/what-is\/lazy-loading\/\",\"name\":\"What is lazy loading?\",\"isPartOf\":{\"@id\":\"https:\/\/taismo.de\/#website\"},\"inLanguage\":\"en\",\"primaryImageOfPage\":{\"@id\":\"https:\/\/taismo.de\/en\/what-is\/lazy-loading\/#primaryimage\"},\"mainEntity\":{\"@id\":\"https:\/\/taismo.de\/en\/what-is\/lazy-loading\/#definedterm\"},\"breadcrumb\":{\"@id\":\"https:\/\/taismo.de\/en\/what-is\/lazy-loading\/#breadcrumb\"},\"speakable\":{\"@type\":\"SpeakableSpecification\",\"cssSelector\":[\".brand-claim\",\".lead-def\"]},\"author\":{\"@id\":\"https:\/\/taismo.de\/#person-dominik-breitbach\"},\"publisher\":{\"@id\":\"https:\/\/taismo.de\/#organization\"},\"datePublished\":\"2025-10-08T12:57:16+02:00\",\"dateModified\":\"2026-07-14T12:00:00+02:00\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/taismo.de\/en\/what-is\/lazy-loading\/#primaryimage\",\"contentUrl\":\"https:\/\/taismo.de\/wp-content\/uploads\/2026\/07\/lazy-loading.png\",\"url\":\"https:\/\/taismo.de\/wp-content\/uploads\/2026\/07\/lazy-loading.png\",\"width\":1200,\"height\":675,\"caption\":\"Lazy loading explained: images and videos outside the visible area are only loaded once the visitor scrolls them into view\"},{\"@type\":\"DefinedTerm\",\"@id\":\"https:\/\/taismo.de\/en\/what-is\/lazy-loading\/#definedterm\",\"name\":\"lazy loading\",\"termCode\":\"lazy-loading\",\"url\":\"https:\/\/taismo.de\/en\/what-is\/lazy-loading\/\",\"inLanguage\":\"en\",\"inDefinedTermSet\":{\"@id\":\"https:\/\/taismo.de\/#seo-wiki\"},\"description\":\"Lazy loading, also called deferred loading, is an optimization technique for online content, above all for images and videos on web pages. 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