Sumi
Sumi erases the original text and re-typesets the translation right into the artwork — vertical Japanese included. Read your own manga on iPhone, iPad, or the web. Free to start, no subscription.
Added July 13, 2026
· Last analysed July 13, 2026 · via 
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 13 July 2026; the live site may have changed since.
Sumi looks production-ready overall, with complete legal pages, a thorough launch checklist, and well-configured email security. Main gaps: missing several security headers and tracking cookies set before any opt-in.
Launched on Product Hunt on July 13, 2026. The site is served through Cloudflare, with a domain registered 6 weeks before launch. We've detected 17 technologies on this site, covering analytics, javascript library, CDN, and collaboration. The stack includes Tailwind CSS, TanStack Start, and Apple App Store.
It's on one of the most common stacks we track, shared by 307 launches.
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Tech Stack (17)
| CDN |
Cloudflare
|
| DNS |
Cloudflare DNS
|
| Business email |
Lark Suite Email
|
| Transactional email |
Cloudflare Email
|
| CSS framework |
Tailwind CSS
|
| Developer tools |
Vite
|
| JavaScript library |
TanStack Router
(2)
|
Zod
|
|
| Meta-framework |
TanStack Start
|
| Mobile |
Apple App Store
(2)
|
| UI library |
shadcn/ui
|
| Analytics |
Google Analytics
(4)
|
Plausible
|
|
PostHog
(2)
|
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
medium
|
| Collaboration |
Lark Suite
(2)
|
Infrastructure
Email Security
Storage (3)
| Name | Lifetime | Detected as |
|---|---|---|
| _ga | 1y | Google Analytics |
| _ga_9B0CR4BM4T | 1y | Google Analytics |
| Key | Size | Detected as |
|---|---|---|
| tsr-scroll-restoration-v1_3 | 49 B | TanStack Router |
Readiness Breakdown How?
Performance How?
⚠ 16 images: 8 oversized, 11 without width/height, 6 missing alt text
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 |
|---|---|
| AI CSS signals | +10 |
| AI onboarding signals | +5 |
| AI palette 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.