What website will tell you how much BTC do I hold? If you can trace from some exchange or a merchant my identity linked to some bitcoins, you can equally do tha

What website will tell you how much BTC do I hold? If you can trace from some exchange or a merchant my identity linked to some bitcoins, you can equally do that with a gold dealer. Of course, you can see where bitcoins are moved, but that won't tell you much: they could be equally sold or simply relocated.