Remember Mobilegeddon? This was Google's search ranking change for searches done on smartphones that placed pages that are "mobile-friendly" higher. For people who don't run non-mobile-friendly websites, this was a relatively non-controversial change.

Of course, it is up to Google to decide what does and does not make a good website for the small screen. Today, they announced that a big prompt—also known as an interstitial—telling you to install an app makes a website not worthy of the "mobile-friendly" label and the benefits that come with it.

Read More