Some may think why do I have to build a website but not using a Facebook Fanpage. Websites have a non-replaceable role in digital marketing. Today, there are many service providers like Google, Facebook, Twitter and Wechat offering advertisement services. However, due to the privacy policy, they are unable to share with you about users data. If you would like to do cross-channel marketing, the only option is to redirect all users to your website and store all users data in your own database. Therefore websites are playing a role of centralized portal for all social media data. It can also help you to identify your potential customers based on users online behaviour. Once we can filter those customers, digital marketing strategy will be very targeted and budget will be used more efficiently.