Which is an example of an unnecessary resource negatively impacting the user experience?
one web font
a photo carousel on the homepage that allows the visitor to preview multiple photos with a quick click
Too often, pages contain resources that are unnecessary, or worse, that hinder page performance without delivering much value to the visitor or to the site they’re hosted on. This applies equally to first-party and third-party resources and widgets:
Read more here: https://support.google.com/partners/answer/7336689