Can web video sites be implemented with HTML5?

Of course, you can use HTML5 to achieve the video site, and the birth of HTML5 fully in line with the Baidu optimization, Baidu Spider to this kind of website friendliness is very high, will try to give high weight, but now many do this kind of web site development is more customary with the websocket, this thing relatively novel, Then you can use node to do the backstage, this technology is a relatively new technology, if you want to develop a good website, recommend you can buy a book to study the related technology.
Of course, if you want to use this site to do optimization, then you still suggest you use HTML5 to achieve the front-end production, because this is more suitable for you to do Baidu optimization, if you want your website tall, then you can choose another program to develop production.

Can web video sites be implemented with HTML5?