Accelerated Mobile Pages

Accelerated Mobile Pages are normal stuff of the web in many respects - publicly reachable via a URL, viewable in any browser, built with HTML, CSS and Javascript. The difference is, they load almost instantly on mobile - music to the ears of anyone who's waited 10 seconds for a page to load over 3G (all of us, then). More information is on the AMP project website. The payoff if you make an AMP version of your page SEO - AMP pages can be served higher up Google search results, for example in the carousel of article stories that you sometimes see when googling for news.