Doublle
Design, development, and creative work on subscription — powered by human experts, accelerated by AI, and delivered through a flat monthly plan.
Estimated origin: India
Added July 8, 2026
· Last analysed July 8, 2026 · via 
· 50% 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 8 July 2026; the live site may have changed since.
Doublle is largely in shape, with a thorough launch checklist and clean crawl signals. Visible gaps: no Content-Security-Policy, incomplete legal pages, and incomplete email security.
Launched on Product Hunt on July 8, 2026. The site is hosted on Vercel, with a domain registered in 2021. The crawl picked up 13 technologies on this site, covering analytics, DNS providers, business email, and transactional email. The stack includes React, Google Analytics, and Google Fonts.
For context, it's one of 61 launches on this exact stack and more locked down than the typical Product Hunt launch.
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Tech Stack (13) · Indie stack
| DNS |
Porkbun DNS
|
| Hosting |
Vercel
|
| Security | HSTS |
| Business email |
Google Workspace
(2)
|
| Transactional email |
Resend
|
| Font |
Google Fonts
|
| Framework |
React
(2)
|
| Package CDN |
unpkg
|
| Analytics |
Google Analytics
(3)
|
Microsoft Clarity
(2)
|
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
(4)
|
| Payments |
Razorpay
(7)
|
Infrastructure
Email Security
Storage (4)
| Name | Lifetime | Detected as |
|---|---|---|
| rzp_unified_session_id | < 1h | Razorpay |
| Key | Size | Detected as |
|---|---|---|
| rzp_checkout_anon_id | 32 B | Razorpay |
| rzp_device_id | 65 B | Razorpay |
| Key | Size | Detected as |
|---|---|---|
| __rzp_risk | 1015 B | Razorpay |
Readiness Breakdown How?
Performance How?
⚠ 45 images: 8 oversized, 45 without width/height
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 onboarding signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI code-structure signals | +5 |
| AI styling signals | +10 |
| 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.