MailCheck Email Validation FadSync API
FadSync Email Intelligence
Added July 23, 2026
· Last analysed July 23, 2026 · via 
· 50% 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 July 2026; the live site may have changed since.
MailCheck Email Validation FadSync API is largely in shape, with complete legal pages and clean crawl signals. Worth fixing first: missing several security headers and incomplete email security.
Launched on Product Hunt on July 23, 2026. The site is served through Cloudflare, with a domain registered in 2025. The crawl picked up 7 technologies on this site, covering analytics, CDN, CSS frameworks, and web fonts. The stack includes Astro, Tailwind CSS, and Cloudflare.
For context, it's running the same core stack as 506 other launches.
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Tech Stack (7)
| CDN |
Cloudflare
|
| Protocol | HTTP/3 |
| CSS framework |
Tailwind CSS
|
| Font |
Google Fonts
|
| Meta-framework |
Astro
medium
|
| UI library |
Lucide Icons
|
| Analytics |
Cloudflare Web Analytics
(2)
|
Infrastructure
Email Security
Storage (0)
Readiness Breakdown How?
Performance How?
⚠ 3 images: 2 oversized, 3 without width/height
Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI palette signals | +5 |
| AI typography signals | +15 |
| Round-number metric claim | +5 |
| Default scaffold favicon | +10 |
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.