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Uncal

Invite-only calendar booking for small teams. Simple scheduling without the bloat.

80% unique tagline

uncal.xyz · Added April 8, 2026 · Last analysed April 8, 2026· via Product Hunt

This analysis is a snapshot taken on 8 April 2026. The site may have changed since then and results may not reflect its current state.
6.3
StackScope Score
Good
8/100 Vibe Score
Few AI signals
55/100 Launch Readiness
Partially ready
neutral
AI Stance
No AI stance declared

Tech Stack (9)

Technology Category Evidence
Google Analytics analytics gtag or GTM script
Google Tag Manager analytics Script: \.googletagmanager\.com/
Tailwind CSS css_framework Tailwind utility classes (6 patterns matched)
Namecheap DNS dns_provider NS: dns1.registrar-servers.com
Flask framework Set-Cookie: Flask session pattern
Rails framework CSRF meta tags (csrf-token + csrf-param)
Rails framework Set-Cookie: Rails session pattern
Fly.io hosting fly-request-id header present
HSTS security Header: Strict-Transport-Security

Infrastructure

Hosting
FLY - Fly.io, Inc., US
AS40509 · US
SSL Certificate
Let's Encrypt
Expires 10 Jun 2026

Readiness Breakdown How?

Favicon present
Responsive viewport meta tag
Custom title and meta description
Semantic HTML (nav, main, article)
- Open Graph tags (title, image, description)
- Canonical URL declared
- Source maps not exposed in production
- Error tracking service installed
- Privacy policy page present
- Twitter card meta tags

Vibe Score Breakdown How?

SignalPoints
Copy style patterns +5
Writing style patterns +3

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

robots.txt (no directives)
llms.txt
security.txt
sitemap.xml
ads.txt
humans.txt

Legal

? Privacy Policy not detected
? Terms of Service not detected
Detection works best on English language sites.

Security Headers (4/6)

Referrer-Policy
X-Frame-Options
Permissions-Policy
X-Content-Type-Options
Content-Security-Policy
Strict-Transport-Security
X-XSS-Protection (legacy)

Performance

407ms response time
Faster than 42% of sites
1 third-party domains loaded

Build

HTML minified
1 JS files
1 Third-party domains
Is this your site? 6 tips to improve your score
- Add a sitemap.xml to help search engines discover all your pages. Learn more
- Add a privacy policy. Free generators like Termly or Iubenda can create one in minutes.
- 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
- Add Open Graph tags so your site looks good when shared on social media. Learn more
- Add a <link rel="canonical"> tag to prevent duplicate content issues. Learn more
Embed this score on your site
StackScope Score
<a href="https://stackscope.dev/launch/bdtztawg/uncal"><img src="https://stackscope.dev/badge/bdtztawg.svg" alt="StackScope Score" height="28" /></a>