Detect Cyrillic Homoglyphs in Text
Cyrillic letters like А, О, Р, С, Т, and Х are visually identical to their Latin counterparts in most fonts, making them the most widely abused script family for phishing, domain spoofing, and wallet address fraud.
The Cyrillic script shares more letter shapes with the Latin alphabet than any other Unicode script block. Attackers exploit this to register domains like "раураl.com" (Cyrillic р, а, у) that look identical to "paypal.com" in every common font. Email clients, browser address bars, and messaging apps all render the Cyrillic variants the same as Latin — only the underlying codepoints differ.
The most commonly abused Cyrillic confusables include:
- А (U+0410) — looks like Latin A; а (U+0430) — looks like Latin a
- В (U+0412) — looks like Latin B
- С (U+0421) — looks like Latin C; с (U+0441) — looks like Latin c
- Е (U+0415) — looks like Latin E; е (U+0435) — looks like Latin e
- Н (U+041D) — looks like Latin H
- О (U+041E) — looks like Latin O; о (U+043E) — looks like Latin o
- Р (U+0420) — looks like Latin P; р (U+0440) — looks like Latin p
- Т (U+0422) — looks like Latin T
- Х (U+0425) — looks like Latin X; х (U+0445) — looks like Latin x
- у (U+0443) — looks like Latin y
How to detect Cyrillic homoglyphs
- Open the Homoglyph Detector and paste the suspicious text — a URL, username, wallet address, or email sender name — into the input area.
- Click Analyze. Any Cyrillic characters are highlighted in red with their Unicode codepoint names (e.g. "CYRILLIC SMALL LETTER A (U+0430)").
- Click Clean to replace every Cyrillic lookalike with its true ASCII equivalent and copy safe text for further processing.
Why Cyrillic spoofing is so effective
Unlike lookalike attacks using special diacritics (rĕnder → rénder), pure Cyrillic substitution produces text with no accents, no combining marks, and no visible difference in popular sans-serif fonts (Arial, Helvetica, Roboto, SF Pro). The only reliable way to detect it is a Unicode codepoint inspection — which is exactly what this tool performs.
Related tools
- Homoglyph Detector — full multi-script confusable detection
- Phishing Text Checker — broad phishing signal analysis
- Invisible Character Detector — find zero-width and BiDi characters
- Compare Crypto Wallet Addresses — codepoint-level address diff