Seedance 2.1
Seedance 2.1 creates 1080p AI videos from text, images, and audio. Perfect for ads, social media, and creative projects. Start generating cinematic videos today.
seedance21ai.org
· Added June 16, 2026
· Last analysed June 16, 2026 · via 
· 0% unique tagline (similar to Seedance 2.0 mini)
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 16 June 2026; the live site may have changed since.
Seedance 2.1 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 June 16, 2026. The site is hosted on Amazon.com in the United States. The crawl picked up 14 technologies on this site, covering analytics, security, auth, and CDN. The stack includes Clerk, Next.js, and React.
For context, it's on one of the most common stacks we track, shared by 7,717 launches.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (14)
| CDN |
Cloudflare
|
| DNS |
Cloudflare DNS
|
| Hosting |
Vercel
|
| Security |
Cloudflare Bot Management
|
| HSTS |
| Business email |
Cloudflare Email Routing
(2)
|
| Auth |
Clerk
(2)
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
|
| UI library |
shadcn/ui
|
| Analytics |
CNZZ
|
Umami
|
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Storage (9)
| Name | Lifetime | Detected as |
|---|---|---|
| CNZZDATA1281417985 | 6mo | - |
| CNZZDATA1281482375 | 6mo | - |
| UM_distinctid | 6mo | Umami |
| _cfuvid | session | Cloudflare |
| __cf_bm | < 1h | Cloudflare |
| __client | 1y | Clerk |
| __client_uat | 1y | Clerk |
| __client_uat_53TXjBox | 1y | Clerk |
| Key | Size | Detected as |
|---|---|---|
| __clerk_environment | 6.3 KB | Clerk |
Readiness Breakdown How?
Performance How?
⚠ 9 images: 7 oversized, 7 without width/height
Broken first-party requests (2), worth fixing
- 404 /blog/seedance-21-vs-seedance-20?_rsc=3lb4g
- 404 /refund?_rsc=3lb4g
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 copy signals | +5 |
| AI onboarding signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI stack 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.