CostKey - Know which feature costs what
One line of code. Every AI call mapped to the function that triggered it. Cost, tokens, latency — per feature, automatically. Free.
Added April 9, 2026
· Last analysed April 10, 2026 · via 
· 71% 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 10 April 2026; the live site may have changed since.
CostKey - Know which feature costs what ships with the basics, with a thorough launch checklist. Worth fixing first: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.
Launched on Product Hunt on April 9, 2026. The site is served through Fastly, with a domain registered 1 week before launch. We've detected 8 technologies on this site, covering transactional email, analytics, CDN, and DNS providers. The stack includes Amazon SES, Fastly, and GoDaddy DNS.
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Tech Stack (8) · Indie stack
| CDN |
Fastly
(2)
|
| DNS |
GoDaddy DNS
|
| Protocol | HTTP/3 (2) |
| Security | HSTS (2) |
| Transactional email |
Amazon SES
|
Resend
|
| Font |
Google Fonts
|
| Analytics |
Plausible
|
Infrastructure
Email Security
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI copy signals | +5 |
| AI writing signals | +5 |
| AI code-structure signals | +5 |
| Recognised AI builder signature | +30 |
| AI typography signals | +15 |
| 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.