Homoglyph domain checker

A homoglyph is a character that looks like another one. Domain names can contain non-Latin characters (internationalized domain names, IDN), so "аpple.com" with a Cyrillic "а" is a different domain from "apple.com" even though they look the same in many fonts. Simpler swaps work in plain ASCII too: "rn" for "m", "l" or "1" for "i", "0" for "o".

Free, no account needed. A scan takes 15 to 60 seconds. You get a shareable result link.

What is checked

• Single and repeated substitutions of look-alike Latin, Cyrillic and Greek characters
• Whole-name Cyrillic versions where every letter has a look-alike
• ASCII look-alikes (rn/m, vv/w, l/1/i, 0/o)
• Each registered result is shown in both forms: how it looks (Unicode) and what it really is (the xn-- "punycode" form)

IDN homoglyphs score higher than plain typos because they are hard to spot by eye. Browsers often show the xn-- form for mixed-script names, which helps on the web but not in every email client or chat app.

What it does not do

LookalikeGuard is monitoring and early warning. It does not take down domains, send legal notices, or give legal advice. Scores are automated and can be wrong in both directions: a high score is a reason to look, not proof of abuse. Many lookalike domains are parked, owned by unrelated businesses, or registered defensively by the brand itself; you can mark those as yours or dismiss them.