
If you haven’t made your website mobile-friendly, you should. Majority of the users coming to your site are likely to be using a mobile device. If you don’t know if your website is mobile-friendly, take the Mobile Friendly Test now!
Why make a website mobile-friendly?
The desktop version of a site might be difficult to view and use on a mobile device. The version that’s not mobile-friendly requires the user to pinch or zoom in order to read the content. Users find this a frustrating experience and are likely to abandon the site. Alternatively, the mobile-friendly version is readable and immediately usable.
Mobile is critical to your business and will continue to be so. Make sure visitors can have a good experience on your site when they’re visiting from their mobile devices!
How do I start?
The work involved in making a mobile-friendly site can depend on your developer resources, business model, and expertise. For an example of how a desktop site might be redesigned to work on mobile, see the following diagram:

On a very basic implementation level, transitioning an existing desktop site to mobile entails using existing sections of content from the desktop site and organizing them in a mobile-friendly design pattern.
How much does it cost to build a site for mobile devices?
The answer is… it varies! For example, here are some of the possibilities:
- Going mobile can be free if you have the technical skills to build your mobile site.
- Going mobile will likely cost time and money if you need to hire a developer. Furthermore, if your website was created several years ago, a new developer might recommend starting from scratch (so you’ll be paying for a complete makeover). This is because there are new web development techniques and themes (or page templates) that may make it more efficient to re-do — rather than modify — your site. This is especially the case for sites:
- Built with Flash
- Using outdate e-commerce platforms
Check Source for more details: https://developers.google.com