A script on your page is loading synchronously, which means it blocks the browser from continuing to render the page until the script has fully downloaded and executed. This can significantly delay when users see your content.
<script src="large-script.js"></script>Add the `defer` attribute to allow the browser to continue rendering while the script downloads.
<script src="large-script.js" defer></script>Non-blocking scripts allow the page to render faster, improving First Contentful Paint (FCP) and user experience.
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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