Typosquatting & Lookalike Domain Checker
Generates the common typo and homoglyph variants of a domain, omissions, added or swapped letters, transpositions, hyphenation, a common-TLD swap, and one IDN lookalike, then checks which of those are actually registered. A registered lookalike isn't automatically malicious, it could be a legitimate owner or one you registered defensively yourself, but it's worth knowing about either way.
📖 Guide: How typosquatting works
Last updated: September 9, 2026
How to use this tool
- Enter your domain and click Check.
- The tool generates roughly 40-60 common typo, homoglyph and TLD-swap variants and checks which ones are actually registered.
- Review the registered list — for anything that concerns you, check who owns it via WHOIS before assuming bad intent.
- Consider defensively registering the closest, most plausible typos yourself if any are still available and your budget allows it.
Which techniques does this check?
| Omission | a character is dropped, exampl.com |
|---|---|
| Addition | a character is doubled, exaample.com |
| Substitution | a character is swapped for a keyboard-adjacent one, ecample.com |
| Transposition | two adjacent characters are swapped, examlpe.com |
| Hyphenation | a hyphen is inserted, ex-ample.com |
| Homoglyph | visually similar characters, ASCII (rn for m, 0 for o) and one Unicode example (a Cyrillic look-alike letter) |
| TLD swap | same name, different ending, example.net, example.io |
| Combosquat | www glued onto the front without a dot, wwwexample.com |
The candidate list is fixed and capped so a live check stays fast: roughly 40 to 60 variants depending on the domain's length. This isn't every possible lookalike, just the well-documented common ones.