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[tech] Zero-width characters and tracking via pasted text

nervuri nervuri at disroot.org

Sun Mar 14 16:54:53 GMT 2021

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It might be interesting to also test our e-mail clients, so below you'llfind all zero-width Unicode characters I've gathered so far, placedbetween underscores.

First, as a point of reference, here are a few positive-width Unicodecharacters:0020: _ _ | 00E9: _é_ | 03A9: _Ω_ | 5B57: _字_ | 1F407: _🐇_

Zero-width characters

061C: _؜_

180E: _᠎_

200B: __ 200C: _‌_ 200D: _‍_ 200E: _‎_ 200F: _‏_

202A: _‪_ 202B: _‫_ 202C: _‬_ 202D: _‭_ 202E: _‮_

2060: _⁠_ 2061: _⁡_ 2062: _⁢_ 2063: _⁣_ 2064: _⁤_ 2066: _⁦_ 2067: _⁧_ 2068: _⁨_ 2069: _⁩_

206A: _⁪_ 206B: _⁫_ 206C: _⁬_ 206D: _⁭_ 206E: _⁮_ 206F: _⁯_

FEFF: __ FFF9: _￹_ FFFA: _￺_ FFFB: _￻_

E0001: _󠀁_

E0020: _󠀠_... (E0020–E007F used for invisibly tagging texts by language)E007F: _󠁿_

This is probably not a complete list. Contact me if you know of anyothers.

Unicode currently contains 143,859 characters.

Unicode Character Database:https://www.unicode.org/Public/UCD/latest/