CalendarSync
Sync Google Calendar, Outlook, and Apple Calendar in real-time. Share scheduling links, prevent double-bookings, and let others book time with you. Start free.
Added April 13, 2026
· Last analysed April 13, 2026 · via 
· 70% 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 13 April 2026; the live site may have changed since.
CalendarSync scores highly overall, with complete legal pages, a thorough launch checklist, and well-configured email security. Visible gaps: no Permissions-Policy.
Launched on Product Hunt on April 13, 2026. The site is hosted on Vercel, with a domain registered 2 weeks before launch. The crawl picked up 15 technologies on this site, covering business email, transactional email, auth, and baas. The stack includes Google Sign-In, Next.js, and React.
For context, it's on one of the most common stacks we track, shared by 10,662 launches and more locked down than the typical Product Hunt launch.
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Tech Stack (15) · Indie stack
| DNS |
GoDaddy DNS
|
| Hosting |
Vercel
(2)
|
| Security | HSTS (2) |
| Business email |
GoDaddy Email
|
Microsoft 365
(2)
|
|
| Transactional email |
Amazon SES
|
Resend
|
| Auth |
Google Sign-In
|
| BaaS |
Supabase
|
| Captcha |
Cloudflare Turnstile
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
(3)
|
| SEO |
Google Search Console
|
| Payments |
Stripe
|
Infrastructure
Email Security
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI copy signals | +5 |
| AI palette signals | +5 |
| AI stack signals | +10 |
| Round-number metric claim | +5 |
| AI asset signals | +10 |
| 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.