Phishers can use these characters in domain names to fool people about which website that are actually visiting. Browsers blacklist sites with these characters.
Source: MozillaZine
| Character | Description | |
|---|---|---|
| U+0020 | SPACE (SP) | |
| U+00A0 | NO-BREAK SPACE (NBSP) | |
| ¼ | U+00BC | VULGAR FRACTION ONE QUARTER |
| ǃ | U+01C3 | LATIN LETTER RETROFLEX CLICK |
| ̷ | U+0337 | COMBINING SHORT SOLIDUS OVERLAY |
| ̸ | U+0338 | COMBINING LONG SOLIDUS OVERLAY |
| ׃ | U+05C3 | HEBREW PUNCTUATION SOF PASUQ |
| ״ | U+05F4 | HEBREW PUNCTUATION GERSHAYIM |
| ۔ | U+06D4 | ARABIC FULL STOP |
| ܂ | U+0702 | SYRIAC SUBLINEAR FULL STOP |
| ᅟ | U+115F | HANGUL CHOSEONG FILLER |
| ᅠ | U+1160 | HANGUL JUNGSEONG FILLER |
| U+2000 | EN QUAD | |
| U+2001 | EM QUAD | |
| U+2002 | EN SPACE | |
| U+2003 | EM SPACE | |
| U+2004 | THREE-PER-EM SPACE | |
| U+2005 | FOUR-PER-EM SPACE | |
| U+2006 | SIX-PER-EM SPACE | |
| U+2007 | FIGURE SPACE | |
| U+2008 | PUNCTUATION SPACE | |
| U+2009 | THIN SPACE | |
| U+200A | HAIR SPACE | |
| | U+200B | ZERO WIDTH SPACE (ZWSP) |
| ․ | U+2024 | ONE DOT LEADER |
| ‧ | U+2027 | HYPHENATION POINT |
| U+2028 | LINE SEPARATOR | |
| U+2029 | PARAGRAPH SEPARATOR | |
| U+202F | NARROW NO-BREAK SPACE (NNBSP) | |
| ‹ | U+2039 | SINGLE LEFT-POINTING ANGLE QUOTATION MARK |
| › | U+203A | SINGLE RIGHT-POINTING ANGLE QUOTATION MARK |
| ⁄ | U+2044 | FRACTION SLASH |
| U+205F | MEDIUM MATHEMATICAL SPACE (MMSP) | |
| ⅔ | U+2154 | VULGAR FRACTION TWO THIRDS |
| ⅕ | U+2155 | VULGAR FRACTION ONE FIFTH |
| ⅖ | U+2156 | VULGAR FRACTION TWO FIFTHS |
| ⅙ | U+2159 | VULGAR FRACTION ONE SIXTH |
| ⅚ | U+215A | VULGAR FRACTION FIVE SIXTHS |
| ⅛ | U+215B | VULGAR FRACTION ONE EIGHTH |
| ⅟ | U+215F | FRACTION NUMERATOR ONE |
| ∕ | U+2215 | DIVISION SLASH |
| ⎮ | U+23AE | INTEGRAL EXTENSION |
| ⧶ | U+29F6 | SOLIDUS WITH OVERBAR |
| ⧸ | U+29F8 | BIG SOLIDUS |
| ⫻ | U+2AFB | TRIPLE SOLIDUS BINARY RELATION |
| ⫽ | U+2AFD | DOUBLE SOLIDUS OPERATOR |
| ⿰ | U+2FF0 | IDEOGRAPHIC DESCRIPTION CHARACTER LEFT TO RIGHT |
| ⿱ | U+2FF1 | IDEOGRAPHIC DESCRIPTION CHARACTER ABOVE TO BELOW |
| ⿲ | U+2FF2 | IDEOGRAPHIC DESCRIPTION CHARACTER LEFT TO MIDDLE AND RIGHT |
| ⿳ | U+2FF3 | IDEOGRAPHIC DESCRIPTION CHARACTER ABOVE TO MIDDLE AND BELOW |
| ⿴ | U+2FF4 | IDEOGRAPHIC DESCRIPTION CHARACTER FULL SURROUND |
| ⿵ | U+2FF5 | IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM ABOVE |
| ⿶ | U+2FF6 | IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM BELOW |
| ⿷ | U+2FF7 | IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM LEFT |
| ⿸ | U+2FF8 | IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM UPPER LEFT |
| ⿹ | U+2FF9 | IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM UPPER RIGHT |
| ⿺ | U+2FFA | IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM LOWER LEFT |
| ⿻ | U+2FFB | IDEOGRAPHIC DESCRIPTION CHARACTER OVERLAID |
| U+3000 | IDEOGRAPHIC SPACE | |
| 。 | U+3002 | IDEOGRAPHIC FULL STOP |
| 〔 | U+3014 | LEFT TORTOISE SHELL BRACKET |
| 〕 | U+3015 | RIGHT TORTOISE SHELL BRACKET |
| 〳 | U+3033 | VERTICAL KANA REPEAT MARK UPPER HALF |
| ㅤ | U+3164 | HANGUL FILLER |
| ㈝ | U+321D | PARENTHESIZED KOREAN CHARACTER OJEON |
| ㈞ | U+321E | PARENTHESIZED KOREAN CHARACTER O HU |
| ㎮ | U+33AE | SQUARE RAD OVER S |
| ㎯ | U+33AF | SQUARE RAD OVER S SQUARED |
| ㏆ | U+33C6 | SQUARE C OVER KG |
| ㏟ | U+33DF | SQUARE A OVER M |
| ︔ | U+FE14 | PRESENTATION FORM FOR VERTICAL SEMICOLON |
| ︕ | U+FE15 | PRESENTATION FORM FOR VERTICAL EXCLAMATION MARK |
| ︿ | U+FE3F | PRESENTATION FORM FOR VERTICAL LEFT ANGLE BRACKET |
| ﹝ | U+FE5D | SMALL LEFT TORTOISE SHELL BRACKET |
| ﹞ | U+FE5E | SMALL RIGHT TORTOISE SHELL BRACKET |
| ﻯ | U+FEEF | ARABIC LETTER ALEF MAKSURA ISOLATED FORM |
| ． | U+FF0E | FULLWIDTH FULL STOP |
| ／ | U+FF0F | FULLWIDTH SOLIDUS |
| ｡ | U+FF61 | HALFWIDTH IDEOGRAPHIC FULL STOP |
| ﾠ | U+FFA0 | HALFWIDTH HANGUL FILLER |
| | U+FFF9 | INTERLINEAR ANNOTATION ANCHOR |
| | U+FFFA | INTERLINEAR ANNOTATION SEPARATOR |
| | U+FFFB | INTERLINEAR ANNOTATION TERMINATOR |
|  | U+FFFC | OBJECT REPLACEMENT CHARACTER |
| � | U+FFFD | REPLACEMENT CHARACTER |
# of characters: 85