Optimize the critical rendering path (prioritizing the display of content that relates to the current user action), optimize CSS ( optimization of CSS background images with queries, CSS minification), image optimization ( correcting image formats to the correct ones, photo compression, use of the WebP format), optimize web fonts ( avoiding invisible text when loading fonts), optimize JavaScript (for client-render pages). LCP improvement can be found at sweb.devoptimize-lcp First Input Delay (FID) FID is an indicator that measures the delay in interacting with a page, more precisely, the time from when a user first interacts with your page (clicks a link, presses a button, etc.) until the browser responds to it.

This measurement is taken from whatever interactive element the user click on first. This is especially important on pages where the user nes to do something, because that's when the page becomes interactive. For a good user experience, the FID time should not exce milliseconds . Core Web Vitals source Japan WhatsApp Number List sweb devfid FID only focuses on input events from discrete actions like clicks, taps, and keystrokes. Interactions such as scrolling and zooming are continuous actions and have completely different performance constraints (plus, browsers are often able to hide their lag by running them in a separate thread.

Not all users will interact with your site every time they visit. This means that some users will have no FID values, some users will have low FID values, and some users will likely have high FID values. If you want to improve your FID score ruce the impact of code host in other domains, minimize the work of the main thread, ruce JavaScript execution time, keep the number of requests low and the transfer size small. More information about the FID improvement can be found at sweb.devoptimize-fid Cumulative Layout Shift (CLS) Another metric measures visual stability. This is the amount of page layout shift during the loading phase.