Hello,
For me, the identification is correct.
The observe of this coin should be rotate 90 degrees clockwise on the numista page ; that may help the buyer to understand the legends
According to
CGB, the reference is "Dy #1".
Apparently there is two variants : one with the dots in 2 and 3 (on the link) and the other one with the dots in 1 and 4 (yours)
Your variant can be seen here too :
https://www.cgb.fr/hugues-capet-denier-c-987-996-beauvais-ttb,v11_0641,a.html