Mobile Friendly Sites
Not so many years ago, most websites were designed to fit a standard desktop monitor. Then along came mobile phones, smart phones and later, notepads. People soon found that sites which looked great on the office computer were very hard to read on the smaller devices.
To address this issue many companies invested heavily in a second website with .mobi at the end. Unfortunately, most visitors did not know about the mobile site. They would therefore still see the desktop version and would then have to find the link to go to the mobile site. It wasn't ideal !
When Apple invented the iPad, that spawned a large range of copycat tablets. Neither the desktop oriented dot com version, nor the dot mobi version were suitable. Nobody wanted to maintain 3 websites and so the responsive website was born.
Now, instead of having to remember or guess 2, or 3 domain extensions, with responsive sites there is only one URL. Behind the scenes, the coding automatically detects the size of the device being used and visitors are presented with the correct version of the site.
Eye-catching budget sites, optimized for high search engine rankings are now within reach of most businesses at very affordable prices. See the two success story below for some explanatory screenshots.
You may also care to have a look at this huge range of sample resonsive websites, all of which are available in desktop, notepad and smart phone versions.
Finally, it should be noted that in April 2015, Google decreed that sites which were not "mobile friendly" would not rank as highly in seach engines as those which were.