The mobile web refers to access to the world wide web, i.e. the use of browser-based Internet services, from a handheld mobile device, such as a smartphone or a feature phone, connected to a mobile network or other wireless network.

Google recently changed the pay ranking for Mobile Ready Websites so when searching from a smart device those sites deemed mobile friendly would return highter in the search results

So you definitelly need an adult website that can be viewable by all those devices.

And truely responsive

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