The rules have changed, you MUST be doing Mobile Marketing and you MUST do it correctly. New Google systems that are open source and FREE not only make this possible, they give you Total Control while making Webmasters Obsolete. (Your webmaster probably knows about this system but they don't tell you because if they do, they lose a client.)
appVOLV changes the game.
There are two systems you need to know about, Progressive Web Apps and the new Google AMP, Accelerated Mobile Pages.
If you are interested in Business Success, you'll get the facts.