Let's dissect Alibaba

So, I was wondering how can I make a B2B website like Alibaba.com. Maybe with lot less features. I have visited from forum to forum, google search and was looking for many technical questions related to alibaba.com website building and design, like:

1. which programming language they use?
2. built on which platform?
3. which framework they use?
4. which database they use?
5. you name any other technical question, that's my question too...

can you guys dissect...

Let's dissect Alibaba

Poster :