Your page has a JavaScript file that's making visitors wait. It's called a 'render-blocking script' because the browser has to stop building the page to download and run it. This delay means a blank screen for your users and a lower score on Google's Core Web Vitals, which can harm your search ranking.
A script tag in the <head> of your document without `async` or `defer`.
<script src="/js/main.js"></script>Add the `defer` attribute to the script tag. This tells the browser to download the script in the background and run it only after the page has finished parsing. For scripts that can run independently (like analytics), you can use `async`.
<script src="/js/main.js" defer></script>Using `defer` (or `async`) allows the browser to continue rendering the page while the script downloads. This results in a much faster perceived load time for the user and better performance scores. Learn more at this web.dev article on render-blocking resources.
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.
Choose the license that fits your needs and start getting the deep, actionable insights you deserve.