Slipstack — Invoices & PDFs as an API
Generate pixel-perfect invoices, receipts, and documents from JSON with a single API call. No headless browsers, no templates to maintain.
slipstack.dev
· Added June 10, 2026
· Last analysed June 10, 2026 · via 
· 56% 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 June 2026; the live site may have changed since.
Slipstack — Invoices & PDFs as an API is largely in shape, with a thorough launch checklist and clean crawl signals. Visible gaps: missing several security headers, incomplete legal pages, and analytics without a consent banner.
Launched on Product Hunt on June 10, 2026. The site is hosted on Amazon.com in the United States, with a domain registered the day of launch. The crawl picked up 11 technologies on this site, covering advertising, analytics, CSS frameworks, and DNS providers. The stack includes Next.js, React, and Tailwind CSS.
For context, it's on one of the most common stacks we track, shared by 7,155 launches.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (11)
| DNS |
Vercel DNS
|
| Hosting |
Vercel
|
| Security | HSTS |
| Business email |
Forward Email
(2)
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
|
| Advertising |
Google Ads
(3)
|
| Analytics |
Google Analytics
(2)
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
|
Infrastructure
Email Security
Storage (2)
| Name | Lifetime | Detected as |
|---|---|---|
| _gcl_au | 3mo | Google Ads |
| Key | Size | Detected as |
|---|---|---|
| _gcl_ls | 152 B | Google Ads |
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 writing 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.