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Foil AI Code Security

Foil finds vulnerabilities using on-device LLMs — your code never leaves your machine. Deep Dive & Deep Scan explain, validate, and rewrite the fix.

AI
Belgium Estimated origin: Belgium

Added April 23, 2026 · Last analysed April 23, 2026 · via · 62% unique tagline

StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 23 April 2026; the live site may have changed since.

Foil AI Code Security ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and fast page loads. What needs work: no Content-Security-Policy and no email security records.

Launched on Product Hunt on April 23, 2026. The site is hosted on Railway. Our crawler found 8 technologies on this site, covering auth, CSS frameworks, web fonts, and frameworks. The stack includes Auth.js, Next.js, and React.

It's also running the same core stack as 432 other launches and tighter on security headers than most Product Hunt launches.

If you own this site, refresh the snapshot and see the full fix list any time →

9.5
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
3/3 Legal
Complete
2/2 Crawl files
Complete
Vibe Score 20 · Few AI signals
How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (8)

Infrastructure
Hosting Railway (2)
Security HSTS (2)
Build & Framework
Auth Auth.js
CSS framework Tailwind CSS
Font Google Fonts
Framework React
Meta-framework Next.js (2)
Business Tools
Product demos Supademo

Infrastructure

Network
AS54113 · US
DNSSEC
Enabled
DNSKEY records published. DNS responses signed.
SSL Certificate
Let's Encrypt
Valid 9 Apr 2026 to 8 Jul 2026
Certificate as captured in this snapshot, not a live check.

Email Security

SPF Not published. Your domain can be spoofed in phishing emails.
DKIM (via apex peachstudio.be) Detected on apex peachstudio.be
DMARC Not published. Receivers fall back to permissive defaults.
?
MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.
?
TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (2)

Cookies (2)
NameLifetimeDetected as
__Host-authjs.csrf-token session Auth.js
__Secure-authjs.callback-url session Auth.js

Readiness Breakdown How?

Custom title and meta description
Open Graph tags (title, image, description)
Twitter card meta tags
Canonical URL declared
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)

Vibe Score Breakdown How?

SignalPoints
AI copy signals +5
AI palette signals +5
AI writing signals +5
AI layout signals +5

This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.

AI Stance

Welcomes AI crawlers
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (10 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy
Terms of Service
/terms
86% unique

Security Headers (5/6)

Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Performance

158ms response time
Faster than 80% of sites
4 third-party domains loaded

Build

Code splitting
9 JS files
2 CSS files
4 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.