Seldon
Wren runs plain-English tests in parallel and uses Seldon's behavioral models to discover test cases your suite is missing, with recorded steps to reproduce each failure.
Estimated origin: United States
Added 10 Nov 2026
Analysed 10 Nov 2026
via 
What we found
- It sends one of the six security headers we check; Content-Security-Policy is among those missing.
- Built with Next.js and React, the site is hosted on Vercel and served through Cloudflare, with a domain registered in 1997.
- It blocks 12 AI crawlers in its robots.txt.
Built with: 16 technologies
Embed this on your site
For light pages
<a href="https://firstsited.com/launch/nfeyynuf/seldon"><img src="https://firstsited.com/badge/nfeyynuf/stack.svg" alt="Seldon tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/nfeyynuf/seldon"><img src="https://firstsited.com/badge/nfeyynuf/stack.svg?theme=dark" alt="Seldon 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 |
Vercel
|
Hosting |
| HSTS | Security |
Google Workspace
(3)
|
Business email |
SendGrid
(2)
|
Transactional email |
| Build & Framework | |
Neon
|
BaaS |
Tailwind CSS
|
CSS framework |
React
(2)
|
Framework |
Next.js
(5)
|
Meta-framework |
| Analytics & Marketing | |
Google Analytics
|
Analytics |
New Relic
|
Analytics |
CookieYes
(4)
|
Consent |
Google Search Console
|
SEO |
Google Tag Manager
(2)
|
Tag management |
| AI & Emerging | |
Anthropic
|
AI API |
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) | |
| Meta description is 170 characters Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear. |
| 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 | |
| Terms of service /terms | |
| Consent manager CookieYes |
Mentions: GDPR, Cookies
| robots.txt | |
| sitemap.xml 17 URLs | |
| security.txt optional | |
| llms.txt optional | |
| ads.txt only for ad-funded sites | |
| humans.txt optional |
| llms.txt published not published | |
| 12 AI bots blocked in robots.txt the owner's choice | |
| Content-Signal ai-train = no | |
| Content-Signal search = yes | |
| Content-Signal ai-input not declared | |
| Link headers none advertised |
| State | Record | Status |
|---|---|---|
| SPF -all | Strict (-all) | |
| DMARC p=reject | Reject (strict) | |
| DKIM | Found | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Hosting and network
| Network | AMAZON-02 - Amazon.com, Inc., US AS16509, US |
|---|---|
| DNS | Cloudflare DNS authoritative nameservers |
| DNSSEC | Enabled DNS answers are signed |
| Certificate | Google Trust Services valid 11 Sep 2026 to 10 Dec 2026, as captured |
| Domain age | 29.2 years registered Sep 1997, GoDaddy.com, LLC |
| Green hosting | No record per The Green Web Foundation |
| Page build | 20 JS files, 5 CSS files 2 third-party domains, code splitting |
| Brand colours |
Storage: 1 item
| Name | Lifetime | Set by |
|---|---|---|
| cookieyes-consent | 12mo | CookieYes |
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 264 ms | good, faster than 50% of sites |
| Largest contentful paint | 756 ms | good |
| Layout shift | 0.00 | good |
| Page weight | 1.7 MB | fair |
| Image weight | 595 KB | fair |
| Images | 9 | 4 larger than shown, 3 without width and height, 3 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 Placeholder branding +10 AI copy signals +5 AI palette signals +5 AI writing signals +5 AI stack signals +10 - Performance comes from one render on 10 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 10 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.