In Windows-1251, C3 maps to and B3 maps to і , resulting in the "Гі" you see. Correct Form The intended text is: Mój profil
The Polish character is represented by the bytes C3 B3 in UTF-8. MГіj profil
This specific glitch occurs when text encoded in is incorrectly read as Windows-1251 (Cyrillic) or ISO-8859-1 . In Windows-1251, C3 maps to and B3 maps