I'm a French Dom in his 40's.
It may be both for real or online however due to the lack of Subs from France here and as I love to have the control, I'd say it will be more online here but it doesn't bother me as I have some experience of that.
I do speak French too (but as I said too few French Subs so I wrote everything in English)
I love to have control and above all orgasm control (which can be done in numerous ways, if you're curious about it just let me know, I'm always eager to explain that).
As I love control I'm also into task submission as the sub is told to perform some tasks for me and is punished if not or rewarded if the task was quite a difficult one for her.
I insist: "for her". The respect is the key in BDSM or D/s relations, so is the knowledge of your sub's limits, fears and tastes.
Blood, urine and feces.
I'm not into pain for the pain.
I feel this place less and less nice. It may sound weird but there are more time wasters and fake profile than before.