Yes, this is a real word. It’s a name for a growing condition, Nomophobia. This term for fear of not having a mobile phone is growing. (“no mobile phobia”). Note how important the mobile device is to its users. This is a huge wake-up call to your “mobile ready” marketing efforts.
Testing your website and landing pages is what you need to be doing right now.
There is a list of free tools and resources you will find on the Learning Center tab drop down on the menu bar above.