Chrome to Phone was launched in 2010 to help bridge your desktop and phone experience by making it easy to send Web links to your phone. Over the years, Google’s core products have evolved to be more integrated across different form factors. As of today, Chrome to Phone is deprecated. The app will continue to work until Mar 31st 2016 after which it will no longer work.
If you’re still using the service, there are several alternatives. One of which — of course — is Google’s very own Chrome tab-sync which synchronizes tabs across all of your devices with Chrome installed (assuming you’re signed in to all with the same account). Another third party option is Pushbullet which lets you sync notifications from Android to desktop, send SMS messages, share links and even remotely access files.