FreeDAST
A free tool that scans your website from the outside — the way a hacker would — and hands you a letter grade plus plain-language fixes, instead of a dense technical report only a security specialist could read.
🔗 Visit FreeDAST
Description
Most security scanning tools are built for security teams, producing reports full of jargon that a small team or solo developer can't easily act on. FreeDAST's approach is to make the output as readable as a school report card: run a scan, get a letter grade, and see plain-language explanations of what's wrong and how to fix it.
FreeDAST is a free external security scanner (DAST — dynamic application security testing) built by TripleKey. It probes your live site or app from the outside, the way an actual attacker would, running more than 30 checks covering things like exposed sensitive files or credentials, weak SSL/cookie configuration (Secure, HttpOnly, SameSite flags), internal paths leaked via robots.txt, and mixed HTTP/HTTPS content. Results come back in about 60 seconds as an A-F grade with severity-ranked findings and a concrete fix for each one. It's completely free with no scan limits, but it's worth being clear about scope: an external scan like this only covers the outside-facing surface, not internal code or architecture, which the tool itself estimates at roughly 10% of total software risk.
💬 Our review
The short version: FreeDAST is a genuinely useful, zero-cost first pass at your external security posture, but treat the grade as a floor, not a ceiling — it tells you about obvious external exposure, not about vulnerabilities in your actual application logic.
Against paid platforms like Detectify or Qualys, which offer deeper, continuously-updated vulnerability databases and often authenticated scanning, FreeDAST's value is accessibility: no signup friction beyond entering a URL, a result in under a minute, and language a non-specialist founder or developer can actually act on. The honest limitation, which FreeDAST itself acknowledges, is scope — external surface scanning catches misconfigurations and exposed files but says nothing about SQL injection risks, business logic flaws, or anything requiring authenticated access. Good as a quick, free sanity check before a client audit or as a periodic health check; not a substitute for a real penetration test or an internal code security review if you're handling sensitive data.
💰 Pricing
📊 Global score
🤖 AI-enriched data
Entièrement gratuit, aucun coût, fréquence de scan illimitée.
Pros
Entièrement gratuit, sans limite de scans
Résultat en ~60 secondes avec note A-F claire
30+ vérifications avec conseils en langage simple
Cons
Ne scanne que la surface externe (~10% du risque logiciel total)
Pas de test interne ni d'accès au code
Pas d'option locale/hors-ligne