InvoicePrepper
Free invoice generator. Build an invoice, download the PDF, track payments. Free forever, no credit card required.
Estimated origin: Canada
Added April 23, 2026
· Last analysed April 23, 2026 · via 
· 17% unique tagline (similar to BillBird)
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 April 2026; the live site may have changed since.
InvoicePrepper ships with the launch fundamentals in place, with complete legal pages, a complete set of security headers, and a thorough launch checklist. What needs work: tracking cookies set before any opt-in and incomplete email security.
Launched on Product Hunt on April 22, 2026. The site is served through Cloudflare, with a domain registered 2 weeks before launch. We've detected 13 technologies on this site, covering analytics, baas, CDN, and developer tools. The stack includes Cloudflare, Cloudflare DNS, and Cloudflare Email Routing.
It's tighter on security headers than most Product Hunt launches.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (13) · Indie stack
| CDN |
Cloudflare
(4)
|
| DNS |
Cloudflare DNS
|
| Protocol | HTTP/3 (2) |
| Security | HSTS (2) |
| Email forwarding |
Cloudflare Email Routing
(2)
|
| Transactional email |
Resend
|
| BaaS |
Supabase
|
| Developer tools |
Vite
|
| Font |
Google Fonts
|
| Analytics |
Cloudflare Web Analytics
(2)
|
PostHog
(5)
|
|
| SEO |
Google Search Console
|
| Payments |
Stripe
|
Infrastructure
Email Security
Storage (7)
| Name | Lifetime | Detected as |
|---|---|---|
| cf_clearance | 1y | Cloudflare |
| ph_phc_ymHXC8Q7wirEnDPba3k68eoLuipzCGYn6Q8UizA4uLFz_posthog | 1y | PostHog |
| Key | Size | Detected as |
|---|---|---|
| dark_mode | 1 B | - |
| ph_phc_ymHXC8Q7wirEnDPba3k68eoLuipzCGYn6Q8UizA4uLFz_posthog | 1 KB | PostHog |
| Key | Size | Detected as |
|---|---|---|
| ph_phc_ymHXC8Q7wirEnDPba3k68eoLuipzCGYn6Q8UizA4uLFz_posthog | 90 B | PostHog |
| ph_phc_ymHXC8Q7wirEnDPba3k68eoLuipzCGYn6Q8UizA4uLFz_primary_window_exists | 4 B | PostHog |
| ph_phc_ymHXC8Q7wirEnDPba3k68eoLuipzCGYn6Q8UizA4uLFz_window_id | 38 B | PostHog |
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI copy signals | +5 |
| AI onboarding signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +3 |
| 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.