Speed is a huge factor in your site's success. A fast site not only increases user satisfaction, but plays a crucial role in optimizing your site for search. A recent study by the Aberdeen Group discovered that a one second delay in page load time leads to an 11 percent drop in pageviews—causing you to miss out on potential loyal readers, revenue and much more.

Speed is especially important to mobile users. And with the majority of media sites seeing more mobile users than desktop users, it should be at the forefront of your mind.

IAB's L.E.A.N ad principles

IAB's L.E.A.N ad principles