Your page experiences unexpected layout shifts, where elements move around after the initial render. This creates a jarring user experience and negatively impacts your Cumulative Layout Shift (CLS) score.
Images loading without `width` and `height` attributes, causing content to jump as they appear.
Always include `width` and `height` attributes on images and video elements. For dynamically injected content (like ads), reserve space using CSS. Avoid inserting content above existing content unless in response to user interaction.
Reserving space for elements and avoiding unexpected content shifts ensures a stable visual layout, improving CLS scores and user satisfaction.
This issue can affect your site's search engine rankings and user experience. Addressing it promptly helps ensure optimal performance and visibility in search results.
Black SEO Analyzer automatically checks for this warning during site analysis, along with hundreds of other technical SEO issues.
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