A lookalike domain is a domain name that closely resembles a legitimate domain. These domains may be registered and controlled by third parties to impersonate an organization, mislead users, or carry out phishing and other malicious activities.
The Lookalike Domain Checker finds registered domains that visually resemble your brand, including homoglyphs, typos, TLD swaps, and character substitutions.
Use it for brand protection, phishing defense, and monitoring domains that attackers may register to impersonate your organization.
Creates homograph, typo, hyphenation, and TLD-swap variants automatically.
Queries which variants are actually registered in DNS.
Flags registered lookalikes that could be used for phishing.
Export-ready list of registered suspicious domains to monitor or dispute.
Provide your primary domain (e.g., yourcompany.com).
The tool creates typosquat, homograph, and TLD permutation candidates.
Queries each variant to see if it resolves in DNS.
See which suspicious domains are live and may pose impersonation risk.
None of the generated variants are registered, lower immediate impersonation risk.
One or more lookalike domains are registered, monitor for phishing use.
Results grouped by technique: homograph, typo, TLD swap, etc.
Lookalike variants that resolve in DNS and may be actively used.
How each domain differs, character substitution, TLD change, hyphen insertion.
A/MX records found for registered lookalike domains.
Run monthly checks, attackers register lookalikes continuously.
Consider registering high-risk TLD variants of your brand proactively.
If a lookalike hosts phishing content, report to registrar and takedown services.
Cross-check suspicious emails with the Phishing Email and URL checkers.
Typos, homoglyphs (visually similar Unicode), hyphenation, subdomain tricks, and TLD swaps.
Not always, but registered lookalikes are a common precursor to brand impersonation attacks.
The tool works on any domain you enter, use it for your own brand protection.
Lookalike Domain checks domain registration broadly; Fake Email checks a specific address domain.
SenderSignal monitors these signals continuously: 48 blacklists, SPF, DKIM, DMARC, TLS and more, with alerts in Slack, email and signed webhooks.