Sentinel
Sentinel detects VPNs, proxies, antidetect browsers, and AI bots in under 40ms. Free API with device intelligence and residential proxy detection built in.
80% unique tagline
sntlhq.com
· Added April 12, 2026
· Last analysed April 12, 2026· via 
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.
Tech Stack (19)
Infrastructure
| Cloudflare | Cdn | http_header_name |
| Cloudflare DNS | DNS | ns_host |
| HSTS | Security | http_header_name |
| HTTP/3 | Protocol | http_header_value |
| Railway | Hosting | http_header_name |
Email
| Resend | Transactional email | dkim_selector |
| Zoho Mail | Business email | mx_host spf_include txt_prefix |
Build & Framework
| Express | Framework | http_header_value |
| Google Fonts | Font | link_href |
| Google OAuth | Auth | csp_allowed_host |
| Google Sign-In | Auth | csp_allowed_host |
| Unsplash | Media | csp_allowed_host |
Analytics & Marketing
| Google Ads | Advertising | cookie_name csp_allowed_host |
| Google Analytics | Analytics | csp_allowed_host script_src |
| Google Search Console | Seo | txt_prefix |
| Google Tag Manager | Tag management | csp_allowed_host |
| X (Twitter) | Social | csp_allowed_host |
Business Tools
| FingerprintJS | Fraud prevention | csp_allowed_host |
| Spur | Fraud prevention | csp_allowed_host |
Infrastructure
SSL Certificate
Let's Encrypt
Expires 2 Jun 2026
Domain Age
1 month
Registered Mar 2026 · Cloudflare, 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
-
Source maps not exposed in production
-
Error tracking service installed
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| Conventional onboarding section | +5 |
| Conventional landing-page palette | +5 |
| Distinctive copy style | +5 |
| Source-code structure conventions | +5 |
| Distinctive CSS conventions | +15 |
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.
Is this your site? 2 tips to improve your score
-
Add a
/.well-known/security.txt so security researchers can reach you. Learn more
-
Your site has structural patterns commonly associated with AI code generation. Customising templates, comments, and default styles can make it feel more unique.
Embed this score on your site
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