Apple has unveiled Safari 17, its latest browser release that delivers a significant upgrade to browsing technology across its desktop and mobile platforms.

Imagine you’re browsing an online store, looking at different products. You click on an item to view its details but then decide to go back and continue exploring. Thanks to bfcache, when you return to the previous page, it instantly appears with all the information and images loaded, without having to wait for it to load again from the server.

Largest Contentful Paint (LCP) is a key performance metric that measures the loading speed of a webpage and is part of the Google Web Vitals initiative, which was introduced in May 2020.