Hi Igor,

When speaking about technology, we don't always translate from the English. So that translation could not exists.

If you are referring to Web Site, the Spanish for that is "Página Web" or "Sitio Web".

If you are referring to a company that develops web sites, they are called "software factories", without translation.

If the term existed it would be "Fábrica de páginas web".

Hope it will help.

Sorry for being ambiguous, this term might not even exist. What I meant was a factory that produces websites.
I can only suggest some by analogy: there is a toy factory, a sausage factory, computer factory, surfboards factory.

How do you like paginas citio? web fabrica? paginas fabrica?