[null,null,["Ultimo aggiornamento 2024-09-04 UTC."],[[["This page is outdated and refers to a deprecated version of PageSpeed Insights API (version 4) which will be shut down."],["Version 5 of the API is the latest and uses real-world data and lab data for providing insights."],["The page lists several web performance optimization techniques, including avoiding redirects, enabling compression, improving server response time, leveraging browser caching, minifying resources, optimizing images and CSS delivery, prioritizing visible content, and removing render-blocking JavaScript, but these instructions might be outdated."]]],["The provided content outlines website optimization techniques. Key actions include avoiding landing page redirects, enabling compression, and improving server response time. Other recommendations are leveraging browser caching, minifying resources, and optimizing images. Further actions involve optimizing CSS delivery, prioritizing visible content, and removing render-blocking JavaScript. The content references version 4 of the PageSpeed Insights API as deprecated, and directs users to version 5 for updated features and data.\n"]]
