Resources on your page (like CSS or JavaScript) are blocking the browser from rendering content, causing delays in when users see your page. This directly impacts First Contentful Paint (FCP) and Largest Contentful Paint (LCP) scores.
A CSS file loaded with `<link rel="stylesheet" href="styles.css">` in the `<head>`.
For CSS, use `media` attributes or inline critical CSS. For JavaScript, use `async` or `defer` attributes.
<link rel="stylesheet" href="print.css" media="print">
<script src="non-critical.js" defer></script>
Non-blocking resources allow the browser to render the page sooner, improving FCP and LCP scores.
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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