Seedance 2
Create Seedance 2.5 AI videos up to 30 seconds with native audio at up to 1080p. Use up to 50 references, keep characters consistent, and edit or extend clips.
Estimated origin: United Kingdom
Added 12 Nov 2026
Analysed 12 Nov 2026
via 
What we found
- It sends two of the six security headers we check; Content-Security-Policy is among those missing.
- Built with Next.js and React, the site is served through Cloudflare, with a domain registered in 2025.
- It welcomes AI crawlers and publishes an llms.txt.
Built with: 19 technologies
Embed this on your site
For light pages
<a href="https://firstsited.com/launch/nfckbeng/seedance-2"><img src="https://firstsited.com/badge/nfckbeng/stack.svg" alt="Seedance 2 tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/nfckbeng/seedance-2"><img src="https://firstsited.com/badge/nfckbeng/stack.svg?theme=dark" alt="Seedance 2 tech stack on FirstSited" height="28"></a>
How it fits together
Each technology runs on, or extends, the one it sits under.
| Technology | Type |
|---|---|
| Infrastructure | |
Cloudflare
|
CDN |
Cloudflare DNS
|
DNS |
| HTTP/3 | Protocol |
Cloudflare Email Routing
(2)
|
Email forwarding |
Cloudflare Email
|
Transactional email |
| Build & Framework | |
Auth.js
(2)
|
Auth |
Cloudflare Turnstile
|
Captcha |
Tailwind CSS
|
CSS framework |
React
(2)
|
Framework |
Lite YouTube Embed
|
JavaScript library |
next-intl
|
Localization |
Next.js
(5)
|
Meta-framework |
Lucide Icons
|
UI library |
Radix UI
|
UI library |
shadcn/ui
|
UI library |
| Analytics & Marketing | |
Microsoft Clarity
|
Analytics |
Yandex Metrica
|
Analytics |
Google Search Console
|
SEO |
Google Tag Manager
|
Tag management |
Each technology links to its own page: which other new sites launched with it.
Site checks
| Custom title and meta description | |
| Open Graph tags (title, image, description) | |
| Twitter card meta tags | |
| Canonical URL declared | |
| Responsive viewport meta tag | |
| Favicon present | |
| Semantic HTML (nav, main, article) |
| Referrer-Policy | |
| X-Frame-Options | |
| Permissions-Policy experimental | |
| X-Content-Type-Options | |
| Content-Security-Policy | |
| Strict-Transport-Security | |
| X-XSS-Protection deprecated, not counted |
| Privacy policy /privacy-policy | |
| Terms of service /terms-of-service | |
| Consent manager analytics set no tracking cookies on our visit (it may be opt-in) |
Mentions: Do Not Sell, Updated: July 26, 2026
| robots.txt | |
| sitemap.xml 235 URLs | |
| security.txt optional | |
| llms.txt | |
| ads.txt only for ad-funded sites | |
| humans.txt optional |
| llms.txt published | |
| 1 AI bot blocked in robots.txt the owner's choice | |
| Content-Signal none declared | |
| Link headers none advertised |
| State | Record | Status |
|---|---|---|
| SPF ~all | Soft-fail (~all), common and accepted | |
| DMARC p=reject | Reject (strict) | |
| DKIM | Found | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Hosting and network
| Network | CLOUDFLARENET - Cloudflare, Inc., US AS13335, US |
|---|---|
| DNS | Cloudflare DNS authoritative nameservers |
| DNSSEC | Not enabled DNS answers are unsigned |
| Certificate | Let's Encrypt valid 22 Oct 2026 to 20 Jan 2027, as captured |
| Domain age | 1 year registered Jun 2025, Spaceship, Inc. |
| Green hosting | Yes per The Green Web Foundation |
| Page build | 42 JS files, 3 CSS files 2 third-party domains, code splitting |
| Brand colours |
Storage: 4 items
| Name | Lifetime | Set by |
|---|---|---|
| NEXT_LOCALE | 1y | - |
| __Host-authjs.csrf-token | session | - |
| __Secure-authjs.callback-url | session | Auth.js |
| Key | Size | Set by |
|---|---|---|
| video-prompt-enhancement-enabled | 5 B | - |
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 873 ms | fair, faster than 12% of sites |
| Largest contentful paint | 2,204 ms | good |
| Layout shift | 0.00 | good |
| Page weight | 8.8 MB | heavy |
| Image weight | 1.1 MB | fair |
| Images | 42 | 37 larger than shown, 21 without width and height, 1 without alt text |
| Third-party domains | 2 | |
| Console errors | 0 | none |
| Failed requests | 0 | none |
From a single automated render of the home page. A quick guide, not a substitute for Lighthouse or field data. How we measure
Notes
-
Looks AI-built: some AI signals.
How much the site looks AI-generated. It is a pattern match shown for interest, not a verdict.
Which signals fired
Signal Points AI palette signals +5 AI writing signals +5 AI iconography signals +3 AI stack signals +10 AI layout signals +5 - Performance comes from one render on 12 November 2026 and will vary between visits.
How we know
FirstSited records what new websites are built with, usually within a day of going live. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We checked this one in full: its tech stack, DNS, security headers and page basics. This page is what we saw on 12 November 2026; the live site may have changed since.
Every technology below links to its own page: which other new sites launched with it. Watch any of them and get every new site that uses it as it goes live, from £15 a month.