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PromptBrake

Security test LLM-powered API endpoints for prompt injection, jailbreaks, data leaks, tool abuse, and unsafe behavior. Get evidence-backed findings in minutes.

71% unique tagline

promptbrake.com · Added April 12, 2026 · Last analysed April 12, 2026· via PeerPush

This analysis is a snapshot taken on 12 April 2026. The site may have changed since then and results may not reflect its current state.
9.4
StackScope Score
Excellent
20/100 Vibe Score
Few AI signals
100/100 Launch Readiness
Launch ready
blocking
AI Stance
Blocks AI crawlers

Tech Stack (14)

Infrastructure
CDN Cloudflare
DNS Cloudflare DNS
Protocol HTTP/3
Security HSTS
Email
Transactional email Amazon SES
Build & Framework
Auth Google Sign-In
BaaS Firebase
Captcha Cloudflare Turnstile
Font Google Fonts
Package CDN cdnjs
Analytics & Marketing
Analytics Cloudflare Web Analytics
Google Analytics
SEO Google Search Console
Tag management Google Tag Manager

Infrastructure

Hosting
AS13335 · US
SSL Certificate
Google Trust Services
Expires 15 May 2026 (24d)
Domain Age
2 months
Registered Feb 2026 · Amazon Registrar, Inc.

Readiness Breakdown How?

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

Vibe Score Breakdown How?

SignalPoints
Conventional landing-page palette +5
Source-code structure conventions +10
Conventional landing-page layout +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.

Well-Known Files

llms.txt
security.txt
ads.txt
humans.txt

Legal

92% unique
Mentions:
Cookies Data Controller DPO Do Not Sell Updated: February 21, 2026

Cookies (1)

Name Lifetime Detected as
csrf_token 7d
HTTP-only list — this snapshot pre-dates 21 Apr 2026 when StackScope started capturing JavaScript-set cookies. The site likely sets more than shown here.

Security Headers (6/6)

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

DMARC

p=quarantine Quarantine (moderate)

Performance

689ms response time
Faster than 21% of sites
5 third-party domains loaded

Build

HTML minified
7 JS files
5 Third-party domains
Is this your site? 2 optional suggestions
- Add a /.well-known/security.txt so security researchers can reach you. Learn more
- Consider adding a llms.txt file to help AI models understand your site. Not yet a standard, but gaining adoption. Learn more
Embed this score on your site
StackScope Score
<a href="https://stackscope.dev/launch/5o9xa2cy/promptbrake"><img src="https://stackscope.dev/badge/5o9xa2cy.svg" alt="StackScope Score" height="28" /></a>