Domain Typo-Squat Checker

Same taxonomy, character omission, transposition, homoglyph, TLD swap, without needing Python installed. dnstwist also performs DNS resolution and similarity scoring on every variant; this tool generates the candidate list and links each one to WHOIS so you can verify registration. For batch defender workflows, dnstwist is still the right tool. For one-off curiosity or a board-prep look at your brand, this is faster.

HIGH severity goes to (1) Cyrillic / Greek homoglyphs that visually mimic Latin characters in the URL bar, the strongest browser-deception vector, and (2) brand-prefix confusion patterns like login-yourbrand.com or yourbrand-secure.com that exploit the same anchor-text trust pattern phishing emails do. MEDIUM is structural typos. LOW is keyboard-neighbor mistypes that humans often catch on second look.

No, checking would require us to issue 50+ DNS queries on your behalf, which (a) puts us in the chain of custody for any data your security team might want isolated and (b) burns the lookup-service rate budget for everyone using DecipherU. We surface the candidate list and link each row to whois.com, where you can confirm registration for any candidate that worries you in one click.

Pure deterministic transforms of your input, no API call, no database, no LLM. The technique list matches the public dnstwist taxonomy and the CISA defender guidance on brand-impersonation domain monitoring.

No. The whole calculation runs in your browser. The domain you enter is never sent to a DecipherU server, never logged, never stored.