DNSTwist detects lookalike domains used in homograph phishing, typosquatting, and brand impersonation.
The Best openSquat Alternatives in 2026
Looking for something like openSquat? Here are 12 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 5 are open source.
openSquat detects look-alike domains that resemble an organization’s legitimate domains, helping identify possible impersonation.
Top picks at a glance
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Dnstwist | — | Yes | — |
| 2 | isMalicious | Freemium | Not stated | Web |
| 3 | Validin | — | Not stated | Web |
| 4 | DomainRecon | — | Not stated | Web |
| 5 | Subhunt | — | Yes | — |
| 6 | DNSai | — | Not stated | Web |
| 7 | TracerouteVisualizer | — | Not stated | Web |
| 8 | Focsec | Free trial | Not stated | Web |
| 9 | dnsx | — | Yes | — |
| 10 | Squatm3gator | — | Yes | — |
All openSquat alternatives
isMalicious checks IP addresses, domains, URLs, emails, phone numbers, and cryptocurrency wallets against threat intelligence data.
Validin
app.validin.comValidin provides a community platform for threat intelligence teams to research and share security information.
DomainRecon
kriztalz.sh/domain-reconDomainRecon looks up DNS records, WHOIS details, SSL certificates, and IP addresses for a domain.
Subhunt enumerates subdomains using passive sources such as certificate transparency records.
DNSai
dnsai.com/dns-toolsDNSai provides DNS lookups and analysis tools for records, WHOIS, blacklists, email authentication, and domains.
TracerouteVisualizer
kriztalz.sh/traceroute-visualizerTracerouteVisualizer maps network traceroute paths and displays the route between a device and a destination.
Check whether an IP address is associated with a VPN, proxy, Tor, or bot through Focsec’s detection API.
dnsx provides a fast DNS reconnaissance toolkit for resolving records and collecting DNS information from domains.
Enumerate available domains generated modifying the original domain name through different cybersquatting techniques
Discover subdomains and review DNS history through the Columbus subdomain discovery service.
Mark Monitor WHOIS
whois-webform.markmonitor.com/whoisMarkMonitor WHOIS looks up domain registration records, with notices about contact information withheld for some registrations.
Alternatives to similar tools
What is the best alternative to openSquat?
Is there a free alternative to openSquat?
Are there open-source alternatives to openSquat?
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative












