Author here: We did some research on enterprise websites, using the Fortune 1000 as our main cohort, and we found that only 13% of them were mobile-friendly and fast. This is in stark contrast to the number that are mobile-friendly (60%).
We're not exactly sure why performance lags so far behind mobile-friendliness, but we'd like to get some thoughts on this.
Thanks for the feedback. I think the safe answer is that your website is considered mobile-friendly if it passes Google's mobile-friendly test. Regarding popups, I guess most of them are built for desktop browser environment so they don't exactly adapt well for mobile. Popups suck regardless, but they do suck more on mobile.
[+] [-] obihill|9 years ago|reply
We're not exactly sure why performance lags so far behind mobile-friendliness, but we'd like to get some thoughts on this.
[+] [-] PaulHoule|9 years ago|reply
As a tablet user the main problem I have is with pop ups that are hard or impossible to dismiss.
[+] [-] obihill|9 years ago|reply