for Mobile Device Testing

January 11, 2013 is a relatively new site, currently in beta, for testing how a Web site will look on various mobile devices. It’s an absolute snap to use: just enter the URL of your (or any) site, and will load a preview of that site, on a grid of pixels, as it would be loaded by a mobile device. Here’s how part of my site looks on an iPhone:

Preview of my site on an iPhone

Once you’ve loaded the page, you can use the menus at the top to change the device or to rotate the device (virtually). The options include both phones and tablets: Options

I haven’t personally verified the results on all the devices, in part because I don’t have all the devices,¬†which is pretty much the point of using a site like When you get the chance, see how your site looks.