Allowed IDN characters[Link]

nr

unicode

glyph

description

1

U+002D

-

HYPHEN-MINUS

2

U+0030

0

DIGIT ZERO

3

U+0031

1

DIGIT ONE

4

U+0032

2

DIGIT TWO

5

U+0033

3

DIGIT THREE

6

U+0034

4

DIGIT FOUR

7

U+0035

5

DIGIT FIVE

8

U+0036

6

DIGIT SIX

9

U+0037

7

DIGIT SEVEN

10

U+0038

8

DIGIT EIGHT

11

U+0039

9

DIGIT NINE

12

U+0061

a

LATIN SMALL LETTER A

13

U+0062

b

LATIN SMALL LETTER B

14

U+0063

c

LATIN SMALL LETTER C

15

U+0064

d

LATIN SMALL LETTER D

16

U+0065

e

LATIN SMALL LETTER E

17

U+0066

f

LATIN SMALL LETTER F

18

U+0067

g

LATIN SMALL LETTER G

19

U+0068

h

LATIN SMALL LETTER H

20

U+0069

i

LATIN SMALL LETTER I

21

U+006A

j

LATIN SMALL LETTER J

22

U+006B

k

LATIN SMALL LETTER K

23

U+006C

l

LATIN SMALL LETTER L

24

U+006D

m

LATIN SMALL LETTER M

25

U+006E

n

LATIN SMALL LETTER N

26

U+006F

o

LATIN SMALL LETTER O

27

U+0070

p

LATIN SMALL LETTER P

28

U+0071

q

LATIN SMALL LETTER Q

29

U+0072

r

LATIN SMALL LETTER R

30

U+0073

s

LATIN SMALL LETTER S

31

U+0074

t

LATIN SMALL LETTER T

32

U+0075

u

LATIN SMALL LETTER U

33

U+0076

v

LATIN SMALL LETTER V

34

U+0077

w

LATIN SMALL LETTER W

35

U+0078

x

LATIN SMALL LETTER X

36

U+0079

y

LATIN SMALL LETTER Y

37

U+007A

z

LATIN SMALL LETTER Z

38

U+00DF

ß

LATIN SMALL LETTER SHARP S

39

U+00E0

à

LATIN SMALL LETTER A WITH GRAVE

40

U+00E1

á

LATIN SMALL LETTER A WITH ACUTE

41

U+00E2

â

LATIN SMALL LETTER A WITH CIRCUMFLEX

42

U+00E3

ã

LATIN SMALL LETTER A WITH TILDE

43

U+00E4

ä

LATIN SMALL LETTER A WITH DIAERESIS

44

U+00E5

å

LATIN SMALL LETTER A WITH RING ABOVE

45

U+00E6

æ

LATIN SMALL LETTER AE

46

U+00E7

ç

LATIN SMALL LETTER C WITH CEDILLA

47

U+00E8

è

LATIN SMALL LETTER E WITH GRAVE

48

U+00E9

é

LATIN SMALL LETTER E WITH ACUTE

49

U+00EA

ê

LATIN SMALL LETTER E WITH CIRCUMFLEX

50

U+00EB

ë

LATIN SMALL LETTER E WITH DIAERESIS

51

U+00EC

ì

LATIN SMALL LETTER I WITH GRAVE

52

U+00ED

í

LATIN SMALL LETTER I WITH ACUTE

53

U+00EE

î

LATIN SMALL LETTER I WITH CIRCUMFLEX

54

U+00EF

ï

LATIN SMALL LETTER I WITH DIAERESIS

55

U+00F0

ð

LATIN SMALL LETTER ETH

56

U+00F1

ñ

LATIN SMALL LETTER N WITH TILDE

57

U+00F2

ò

LATIN SMALL LETTER O WITH GRAVE

58

U+00F3

ó

LATIN SMALL LETTER O WITH ACUTE

59

U+00F4

ô

LATIN SMALL LETTER O WITH CIRCUMFLEX

60

U+00F5

õ

LATIN SMALL LETTER O WITH TILDE

61

U+00F6

ö

LATIN SMALL LETTER O WITH DIAERESIS

62

U+00F8

ø

LATIN SMALL LETTER O WITH STROKE

63

U+00F9

ù

LATIN SMALL LETTER U WITH GRAVE

64

U+00FA

ú

LATIN SMALL LETTER U WITH ACUTE

65

U+00FB

û

LATIN SMALL LETTER U WITH CIRCUMFLEX

66

U+00FC

ü

LATIN SMALL LETTER U WITH DIAERESIS

67

U+00FD

ý

LATIN SMALL LETTER Y WITH ACUTE

68

U+00FE

þ

LATIN SMALL LETTER THORN

69

U+00FF

ÿ

LATIN SMALL LETTER Y WITH DIAERESIS

70

U+0153

oe

LATIN SMALL LIGATURE OE