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Seedance 2.5

One-take Creation, Flexible Referencing: Introducing Seedance 2.5

Content
China Estimated origin: China

Added August 3, 2026 · Last analysed August 3, 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 3 August 2026; the live site may have changed since.

Seedance 2.5 ships with the basics, with well-configured email security and clean crawl signals. Visible gaps: missing several security headers and incomplete legal pages.

Launched on Product Hunt on August 3, 2026. The site is hosted on ByteDance Edge and served through ByteDance CDN, with a domain registered in 2011. We've detected 9 technologies on this site, covering CDN, javascript library, ai service, and analytics. The stack includes Tailwind CSS, ByteDance CDN, and ByteDance Edge.

It's one of only 20 launches we've crawled running ByteDance Edge.

If you own this site, refresh the snapshot and see the full fix list any time →

Vibe Score 3 · Few AI signals
How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (9)

Infrastructure
CDN ByteDance CDN
Volcengine DCDN
Hosting ByteDance Edge
Security HSTS
Build & Framework
CSS framework Tailwind CSS
JavaScript library Motion
React Router
Analytics & Marketing
Analytics ByteDance Rangers (2)
AI & Emerging
AI service Doubao

Infrastructure

DNSSEC
Enabled
DNSKEY records published. DNS responses signed.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
DigiCert Inc
Valid 19 Jan 2026 to 18 Jan 2027
Certificate as captured in this snapshot, not a live check.
Domain Age
14.7 years
Registered Nov 2011 · eName Technology Co., Ltd.

Email Security

SPF -all (via apex bytedance.com) Strict (-all). Strong.
DKIM (via apex bytedance.com) Detected on apex bytedance.com
DMARC p=quarantine (via apex bytedance.com) Quarantine (moderate)
?
MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.
?
TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (8)

Cookies (1)
NameLifetimeDetected as
bd_sso_hi3jfd 12mo -
Local storage (6)
KeySizeDetected as
deviceId 11 B -
SLARDARresearch_ai 196 B -
userId 11 B -
__tea_cache_first_591312 1 B ByteDance Rangers
__tea_cache_refer_591312 106 B ByteDance Rangers
__tea_cache_tokens_591312 108 B ByteDance Rangers
Session storage (1)
KeySizeDetected as
__tea_session_id_591312 78 B ByteDance Rangers

Readiness Breakdown How?

Custom title and meta description
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)
- Open Graph tags (title, image, description)
- Canonical URL declared
- Twitter card meta tags

Performance How?

1107 ms Server response
9% Faster than peers
9432 ms Largest contentful paint
0.00 Cumulative layout shift
4.9 MB Page weight
247 KB Image weight
4 Third-party domains
0 Console errors
0 Failed requests

2 images: 2 without width/height, 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?

SignalPoints
AI writing signals +3

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.

AI Stance

No AI stance declared
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (32 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy-policy
? Terms of Service not detected
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
0% unique

Security Headers (1/6)

Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

Code splitting
8 JS files
3 CSS files
4 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.