Headers
Score browser security headers and HTTP posture.
Run quick defensive checks before launch: headers, DNS/email security, TLS certificates, security.txt, passwords, hashes, JWT decoding and URL/base64 utilities. Use only on systems you own or are authorized to test.
We send a one-time code to your email. Verified users get 3 free scans per day, then upgrade to Growth Lab Pro for unlimited access.
Score browser security headers and HTTP posture.
Check MX, SPF, DMARC, CAA and nameservers.
Read certificate issuer, subject and expiry health.
Discover security.txt and robots.txt exposure.
Test passphrase strength locally in the browser.
Decode JWT, hash text and encode URLs locally.
Generate a hardened Content Security Policy starter.
Create SHA-384 integrity hashes for scripts and styles.
Review Set-Cookie flags for session safety.
Open a dedicated tool, run a live scan and download a white-label PDF report.
Score HSTS, CSP, COOP, CORP, frame & MIME protection, cookie flags and stack disclosure.
Open scannerCheck MX, SPF, DMARC, CAA and nameservers for deliverability and anti-spoofing.
Open scannerRead certificate issuer, subject, validity window and days to expiry.
Open scannerDiscover responsible-disclosure and crawler files exposed over HTTPS.
Open scannerDetect the CMS, frameworks, libraries, analytics, CDN and server behind a site.
Open scannerTitles, meta, headings, schema, Open Graph, keyword density and indexability.
Open scannerStrength score will appear here.
Run every scanner without the 3-per-day free limit, add your own agency branding and download client-ready PDF reports.
Free accounts get 3 scans a day. Go Pro for unlimited scans across every tool, white-label PDF reports with your own logo, the AI content assistant, rank tracking and continuous monitoring — €25/month or €200/year. Cancel anytime.