Duefy
Stop chasing invoices. Duefy detects replies like "I'll pay Friday", flags disputes, and adds Pro recovery guidance when you need it. From $19/mo.
Estimated origin: United States
Added June 29, 2026
· Last analysed June 29, 2026 · via 
· 33% unique tagline (similar to PayFlow — Get paid on time)
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 29 June 2026; the live site may have changed since.
Duefy scores highly overall, with complete legal pages, a thorough launch checklist, and well-configured email security. Main gaps: missing Permissions-Policy and Content-Security-Policy and tracking cookies set before any opt-in.
Launched on Product Hunt on June 29, 2026. The site is hosted on DigitalOcean in the United States, with a domain registered 6 weeks before launch. Our crawler found 10 technologies on this site, covering servers, analytics, DNS providers, and email forwarding. The stack includes Cloudflare DNS, Cloudflare Email Routing, and Google Analytics.
It's also more locked down than the typical Product Hunt launch.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (10)
| DNS |
Cloudflare DNS
|
| Security | HSTS |
| Server |
nginx
|
PHP
|
| Email forwarding |
Cloudflare Email Routing
(2)
|
| Transactional email |
Resend
|
| UI library |
Lucide Icons
|
| Analytics |
Google Analytics
(4)
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
medium
|
Infrastructure
Email Security
Storage (4)
| Name | Lifetime | Detected as |
|---|---|---|
| PHPSESSID | session | PHP |
| _ga | 1y | Google Analytics |
| _ga_JSJJSJVJ3N | 1y | Google Analytics |
| Key | Size | Detected as |
|---|---|---|
| duefy_utm | 54 B | - |
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 |
|---|---|
| Placeholder branding | +10 |
| AI copy signals | +5 |
| AI onboarding signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI iconography signals | +5 |
| AI code-structure signals | +5 |
| AI layout signals | +5 |
| AI CSS signals | +15 |
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.