what is digital marketing?

I believe digital marketing is nothing but marketing a product or advertising online using multiple channels.Like., Facebook, Linkedin, Twitter, Instagram, whatsapp business, website SEO, Google Page, Youtube, etc.,

Still it depends on what content we put I believe. 

We have to see the content is clearer, relevant, quality,  transperant, positive, sensible and more importantly we should reach the right audience.

Am I right or anything else I am missing or any new process to be followed?