He was not talking about the actual language. He was talking about the programming language. As all sites, it will be built in HTML and CSS, and if you also want some programming, I suggest PHP. Asp.Net Asp.Net best for one's own sites and additional language features many new concepts.
You want to create website. And you are confused about the language. So I will really go for Asp.net, this one is really one of the best knowledge to create a website. And you can easily made the content and features with the help of this language.
Java and PHP are my favorite web designing programs. However, Java has become one of the most secure technologies for website and software development. Java is designed to be simple, object oriented and similar to C++. The key benefit of Java is its security features. Both the language and the platform were designed from the ground up with security in mind.
I think you can go with any language you want.PHP, Python, Ruby or Java, just to name a few. The accent is not the aqueduct of such applications, but you should use a fast and scalable database like sql, accumulation as abundant agreeable as accessible in memory.