I will fix core web vitals and page speed issues of shopify and non cms

FTP is not your full CPanel access. It's a part of CPanel and used for hosting access (not the CPanel). I need FTP access/ SSH access (for cloud storage). I'll backup files which i'll edit. If something bad happened i'll replace and work.).

A CDN is a content delivery network that loads your website resources like code and images from a server near to the customer from places across the globe. Having a CDN helps in optimizing page speed

Web Vitals is an initiative by Google to provide unified guidance for quality signals that are essential to delivering a great user experience on the web. Google has provided a number of tools over the years to measure and report on performance.

LCP measures the time taken by the server to display the largest visible element in the viewport. ... If you are seeing the LCP issue: Longer than 4s (Desktop) or (Mobile) error in your Search Console then it means that the server is taking more than 4 seconds to render the largest visible element i

Cumulative Layout Shift (CLS) is a Core Web Vitals metric calculated by summing all layout shifts that aren't caused by user interaction. CLS looks at the proportion of the viewport that was impacted by layout shifts, and the movement distance of the elements that were moved.

The core web vital sign for interactivity is called First Input Delay (FID). Input Delay measures responsiveness. Rather than just measuring how quickly content loads onto a page, FID is designed to measure how quickly users can interact with that content.