Dual N Back
Use Dual N Back for daily training. The scientifically proven method will help you develop working memory and increase attention concentration completely free of charge.
Estimated origin: Russia
Added July 11, 2026
· Last analysed July 11, 2026 · via 
· 70% 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 11 July 2026; the live site may have changed since.
Dual N Back is largely in shape, with complete legal pages, a thorough launch checklist, and clean crawl signals. Main gaps: missing several security headers, tracking cookies set before any opt-in, and incomplete email security.
Launched on Product Hunt on July 10, 2026. The site is hosted on Beget LLC in Russia, with a domain registered 8 weeks before launch. The crawl picked up 9 technologies on this site, covering analytics, ai service, DNS providers, and business email. The stack includes Beget, Beget DNS, and Google Analytics.
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Tech Stack (9)
| Business email |
Beget
|
| Font |
Google Fonts
|
| Analytics |
Google Analytics
(4)
|
Yandex Metrica
(5)
|
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
medium
|
| AI service |
OpenAI
|
Infrastructure
Email Security
Storage (20)
| Name | Lifetime | Detected as |
|---|---|---|
| bh | 1y | - |
| sync_cookie_csrf | < 1h | - |
| sync_cookie_csrf_secondary | < 1h | - |
| _ga | 1y | Google Analytics |
| _ga_93K5MDTYGC | 1y | Google Analytics |
| _yasc | 1y | - |
| _ym_d | 12mo | Yandex Metrica |
| _ym_isad | 20h | Yandex Metrica |
| _ym_uid | 12mo | Yandex Metrica |
| _ym_visorc | < 1h | Yandex Metrica |
| Key | Size | Detected as |
|---|---|---|
| endback_active_session | 87 B | - |
| endback_daily_progress | 41 B | - |
| ui_language | 2 B | - |
| _ym109238057:0_reqNum | 1 B | Yandex Metrica |
| _ym109238057_lsid | 13 B | Yandex Metrica |
| _ym_retryReqs | 2 B | Yandex Metrica |
| _ym_synced | 16 B | Yandex Metrica |
| _ym_uid | 21 B | Yandex Metrica |
| _ym_wv2rf:109238057:0 | 1 B | Yandex Metrica |
| Key | Size | Detected as |
|---|---|---|
| __ym_tab_guid | 36 B | Yandex Metrica |
Readiness Breakdown How?
Performance How?
⚠ 4 images: 3 oversized, 4 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 |
|---|---|
| AI CSS signals | +8 |
| AI palette signals | +5 |
| AI code-structure signals | +5 |
| AI scaffolding 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.