Subdomain Takeover Checker
Detect subdomain takeover vulnerabilities by analyzing DNS records and CNAME chains. Checks against 80+ known services including AWS S3, Azure, Heroku, Vercel, Netlify, GitHub Pages and more. Returns vulnerability status, confidence level, CNAME chain, and the matched service.
Subdomain Takeover Checker endpoints
| Method | Endpoint | Description |
|---|---|---|
| GET |
Check Subdomain /check |
Check a single subdomain for takeover vulnerabilities |
| POST |
Bulk Check Subdomains /bulk_check |
Check up to 25 subdomains at once for takeover vulnerabilities. Send a JSON body with a "subdomains" array. Example: {"subdomains": ["shop.example.com", "blog.example.com"]} |
Subdomain Takeover Checker pricing
| Plan | Price | Rate limit | Quotas |
|---|---|---|---|
| BASIC | Free | 20 / hour |
|
| PRO Recommended | $9 / month | 100 / minute |
|