Free tools
Free website checks
Single-purpose checks from our scanner — instant, passive, no signup. For the full 15-point picture, run the complete check.
- Google Fonts Checker
Free check: does your website load fonts from Google's servers and transmit visitor IPs? Instant result, no signup.
- Security Headers Check
Free security header test: Content-Security-Policy, HSTS, clickjacking protection, nosniff. Instant result, no signup.
- Impressum Checker
Free check: does your website have the imprint (Impressum) German law requires — and a privacy policy? Instant result.
- Website Cookie & Tracker Scanner
Free online cookie scanner: enter a URL and see which tracking cookies and third-party trackers your website sets before consent. Instant result, no signup.
- HTTPS & HSTS Checker
Free check: HSTS header and mixed content (resources loaded over plain HTTP) on your site. Instant result, no signup.
- Source Map Checker
Free check: are your production .map files public, exposing your original source code? Instant result, no signup.
- X-Frame-Options Test
Free X-Frame-Options test: can your site be embedded in an iframe and clickjacked? Checks CSP frame-ancestors too. Instant, no signup.
- nosniff Header Check
Free X-Content-Type-Options: nosniff test. Check whether browsers may MIME-sniff your files and execute them. Instant result, no signup.