Code point
U+FFFDD
This code point is invisible, reserved, private-use, or a control. The dot is a placeholder, not its glyph.
U+FFFDD
CoChoose the representation you need, then copy its value.
U+FFFDD
1048541
󿿝
󿿝
F3 BF BF 9D
DBBF DFDD
000FFFDD
%F3%BF%BF%9D
\U000FFFDD
\u{FFFDD}
\uDBBF\uDFDD
\FFFDD