Googler Says Trying to Fake Things like LCP Using Placeholder GIF Might Not Work For Long

As you know, the Google Page Experience Update is coming up in May 2021 and a lot of it is based on the core web vitals metrics of Largest Contentful Paint (LCP), First Input Delay (FID) and Cumulative Layout Shift (CLS). Lyndon NA points out some tactics that some users might be using eg fake the metrics in order to give their own sites a better score or to give their competitor sites a worse score, to which Googler Malte Ubl says that a page can have multiple LCP candidates and the last is picked, incase the first tactics works now, it will stop working in the future.