Here's why:
* www is an abbreviation: It stands for World Wide Web, a concept and not a language.
* No official language: The World Wide Web doesn't have a specific language of its own. We access it and interact with it through various languages like English, Spanish, Chinese, etc.
* Universally understood: "www" is understood across all languages and cultures as an identifier for the internet.
So, it's not a matter of dialect but rather an internationally recognized abbreviation.