SAT Duels
SAT Duels is the #1 competitive SAT practice app. Battle live opponents in timed SAT Math and English duels, climb a skill-based ELO ladder, and track real score gains. Free to play — no credit card required.
Added July 14, 2026
· Last analysed July 14, 2026 · via 
· 80% 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 14 July 2026; the live site may have changed since.
SAT Duels is largely in shape, with complete legal pages, a thorough launch checklist, and clean crawl signals. Main gaps: missing several security headers and no email security records.
Launched on Product Hunt on July 14, 2026. The site is hosted on Vercel and served through Cloudflare, with a domain registered 12 weeks before launch. The crawl picked up 14 technologies on this site, covering advertising, analytics, CDN, and consent tooling. The stack includes Google Funding Choices, Cloudflare, and Cloudflare DNS.
For context, it's on one of the most common stacks we track, shared by 2,846 launches.
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Tech Stack (14) · Indie stack
| CDN |
Cloudflare
|
| DNS |
Cloudflare DNS
|
| Hosting |
Vercel
|
| Security | HSTS |
| Transactional email |
Resend
|
| Developer tools |
Vite
|
| Font |
Google Fonts
|
| JavaScript library |
React Router
|
| Advertising |
Google Ads
|
Google AdSense
(2)
|
|
| Analytics |
Google Analytics
(4)
|
| Consent |
Google Funding Choices
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
medium
|
Infrastructure
Email Security
Storage (6)
| Name | Lifetime | Detected as |
|---|---|---|
| FCCDCF | 1y | - |
| _ga | 1y | Google Analytics |
| _ga_YZ4Q1M34JD | 1y | Google Analytics |
| Key | Size | Detected as |
|---|---|---|
| sat_duel_telemetry_queue | 2 B | - |
| Key | Size | Detected as |
|---|---|---|
| sat_duel_session_started | 1 B | - |
| sat_duel_telemetry_session | 24 B | - |
Readiness Breakdown How?
Performance How?
⚠ 2 images: 2 oversized, 2 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 copy signals | +5 |
| AI onboarding signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| 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.