Muse Ember by Meta
Built for high-volume agentic workflow execution, from coding subtasks and tool calls to document summarization and extraction.
Added 11 Nov 2026
Analysed 11 Nov 2026
via 
What we found
- Analytics set tracking cookies before any opt-in, and we found no consent manager.
- It sends one of the six security headers we check; Content-Security-Policy is among those missing.
- It publishes SPF but no DMARC record, so receivers decide for themselves what to do with email that fails.
- Built with Next.js and React, the site is hosted on Vercel and served through Cloudflare, with a domain registered in 2017.
Built with: 15 technologies
Embed this on your site
For light pages
<a href="https://firstsited.com/launch/qdgtggfq/muse-ember-by-meta"><img src="https://firstsited.com/badge/qdgtggfq/stack.svg" alt="Muse Ember by Meta tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/qdgtggfq/muse-ember-by-meta"><img src="https://firstsited.com/badge/qdgtggfq/stack.svg?theme=dark" alt="Muse Ember by Meta 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 |
Vercel
|
Hosting |
Cloudflare Bot Management
|
Security |
| HSTS | Security |
Proxygen
|
Server |
| Facebook Email | Business email |
| Build & Framework | |
React
(3)
|
Framework |
Next.js
(5)
|
Meta-framework |
| Analytics & Marketing | |
Facebook Pixel
(4)
|
Advertising |
Google Ads
|
Advertising |
LinkedIn
|
Advertising |
Google Analytics
|
Analytics |
Vercel Analytics
|
Analytics |
Facebook
(2)
|
Social |
| Business Tools | |
Sentry
(2)
|
Error tracking |
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 /policies_center/ | |
| Consent manager not detected; analytics set tracking cookies on our visit with no opt-in step |
| robots.txt | |
| sitemap.xml 418 URLs | |
| security.txt optional | |
| llms.txt | |
| ads.txt only for ad-funded sites | |
| humans.txt optional |
| llms.txt published | |
| No AI bots blocked in robots.txt | |
| Content-Signal none declared | |
| Link headers none advertised |
| State | Record | Status |
|---|---|---|
| SPF ~all | Soft-fail (~all), common and accepted | |
| DMARC | Not published | |
| DKIM | Not found at common selectors | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Without DMARC, receivers fall back to their own rules for email that fails SPF.
Hosting and network
| Network | FACEBOOK - Facebook, Inc., US AS32934, US |
|---|---|
| DNSSEC | Enabled DNS answers are signed |
| Certificate | DigiCert Inc valid 21 Aug 2026 to 18 Nov 2026, as captured |
| Domain age | 8.9 years registered Dec 2017, RegistrarSEC LLC |
| Green hosting | No record per The Green Web Foundation |
| Page build | 42 JS files, 4 CSS files 4 third-party domains, code splitting |
| Brand colours |
Storage: 8 items
| Name | Lifetime | Set by |
|---|---|---|
| llama_dev_csrf | < 1h | - |
| _fbp | 3mo | Facebook Pixel |
| Key | Size | Set by |
|---|---|---|
| lastExternalReferrer | 5 B | - |
| lastExternalReferrerTime | 13 B | - |
| REACT_QUERY_CACHE | 83 B | - |
| Key | Size | Set by |
|---|---|---|
| llmdc_usal_last_activity | 13 B | - |
| llmdc_usal_orig_referrer | 0 B | - |
| llmdc_usal_session_id | 36 B | - |
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 631 ms | fair, faster than 22% of sites |
| Largest contentful paint | 1,280 ms | good |
| Layout shift | 0.00 | good |
| Page weight | 4.2 MB | heavy |
| Image weight | 147 KB | light |
| Images | 15 | 6 larger than shown, 7 without alt text |
| Third-party domains | 4 | |
| Console errors | 3 | worth a look |
| Failed requests | 1 | worth fixing |
Broken requests to the site itself (1), worth fixing
- 401 /api/auth/me
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: few 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 - Analytics set tracking cookies on our visit and no consent manager was detected. UK and EU GDPR require opt-in before tracking runs, and more than 20 US states require honouring opt-out requests.
- Performance comes from one render on 11 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 11 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.