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Detects subdomain takeover vulnerabilities in seconds ā free, no login required.
Forgot to remove a DNS record after leaving Heroku, Vercel, or AWS? An attacker can claim that subdomain. SubdomainChecker follows the full CNAME chain and fingerprints 100+ services to tell you if you're at risk.
ā No data stored, no logging
ā Bulk check up to 10 subdomains
ā Open source
Subdomain Takeover CheckerDetect subdomain takeover vulnerabilities for free
Mika left a comment
Hey Product Hunt! š I built SubdomainChecker after noticing how many companies have dangling subdomains pointing to unclaimed services ā a surprisingly common and easy-to-exploit vulnerability. The tool is completely free, open source, and requires no login. Just paste a subdomain and it tells you within seconds whether it's vulnerable to takeover, who the service provider is, and the full...
Subdomain Takeover CheckerDetect subdomain takeover vulnerabilities for free