Thank you for your last reply, but I still have several questions, which I haven't found answer neither in FAQ. How is SEF URL(especially for articles) generate ? Does it consist the name of category, where article is situated ? Can I choose what will be in SEF URL ? Choose what sef url consist of ?
We offer extensive customization of URLs, especially for com_content. We cannot answer all questions of course, so I would suggest you read the documentation, especially the pages related to SEF URLs creation here and there.
Beyond that, you will just have to try it for yourself, as per your other topic, to see if it fits your specific requirements.