KillBounce
Three-layer email verification — syntax, DNS, and live SMTP probe. Honest results: valid, invalid, or unknown.
www.getkillbounce.com
· Added June 9, 2026
· Last analysed June 9, 2026 · via 
· 75% 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 9 June 2026; the live site may have changed since.
KillBounce scores well across the board, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Main gaps: incomplete email security.
Launched on Product Hunt on June 9, 2026. The site is hosted on Amazon.com in the United States, with a domain registered 4 weeks before launch. Our crawler found 10 technologies on this site, covering CSS frameworks, DNS providers, business email, and transactional email. The stack includes Next.js, React, and Tailwind CSS.
Notably, it's on one of the most common stacks we track, shared by 7,148 launches and more locked down than the typical Product Hunt launch.
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Tech Stack (10) · Indie stack
| DNS |
Cloudflare DNS
|
| Hosting |
Vercel
|
| Security | HSTS |
| Business email |
Cloudflare Email Routing
(2)
|
| Transactional email |
Resend
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
(2)
|
| UI library |
shadcn/ui
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Storage (0)
Readiness Breakdown How?
Performance How?
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 copy signals | +5 |
| AI onboarding signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI stack signals | +10 |
| Unfilled template placeholders | +10 |
| 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.