How to write in transliteration?

Question

Transliteration

Register now on aliexpress. My name is Sergey. Previously wrote everywhere Sergey. But the translit.net service translates as Sergej. So what's the right way to write? And yet, my street is called Krupskaya. How to write it correctly in transliteration?

Answer 1

in fact, it doesn’t matter, then they will still translate it into Russian at the post office without any problems, and aliexpress will not care how you wrote your name, and even more so some kind of street, about which he will never know anything.

Answer 2

Do you have a passport?
Sergey - this is how it should be in a foreign country (that is, in a normal way)
And Sergej is some kind of phonetic transliteration chtol)
Krupskoy - this is how it will be right, I think.