Skillbox
Your AI skills are scattered. Skillbox keeps them together, across your tools.
Estimated origin: United Kingdom
Added 11 Nov 2026
Analysed 11 Nov 2026
via 
What we found
- It sends none of the six security headers we check.
- It has a robots.txt but no sitemap.
- Built with Next.js and React, the site is hosted on OpenNext and served through Cloudflare, with a domain registered 9 weeks before launch.
- It blocks 12 AI crawlers in its robots.txt.
Built with: 24 technologies
Embed this on your site
For light pages
<a href="https://firstsited.com/launch/5i3fc3qf/skillbox"><img src="https://firstsited.com/badge/5i3fc3qf/stack.svg" alt="Skillbox tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/5i3fc3qf/skillbox"><img src="https://firstsited.com/badge/5i3fc3qf/stack.svg?theme=dark" alt="Skillbox 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
(2)
|
CDN |
Cloudflare DNS
|
DNS |
OpenNext
|
Hosting |
| HTTP/3 | Protocol |
Cloudflare Bot Management
|
Security |
Google Workspace
(3)
|
Business email |
Cloudflare Email Routing
|
Email forwarding |
Cloudflare Email
|
Transactional email |
| Build & Framework | |
Supabase
(2)
|
BaaS |
Tailwind CSS
|
CSS framework |
React
(2)
|
Framework |
crypto-browserify
|
JavaScript library |
highlight.js
|
JavaScript library |
Motion
|
JavaScript library |
ProseMirror
|
JavaScript library |
Zod
|
JavaScript library |
Next.js
(6)
|
Meta-framework |
shadcn/ui
|
UI library |
| Analytics & Marketing | |
Google Search Console
|
SEO |
| Business Tools | |
Tally
|
Forms |
| Other | |
AI Agents Directory
|
Directory |
AI Directories
|
Directory |
Product Hunt
|
Directory |
Twelve Tools
|
Directory |
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 | |
| Terms of service /terms |
Mentions: Cookies, Data Controller, Do Not Sell
| robots.txt | |
| sitemap.xml | |
| 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 | 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 | Google Trust Services valid 25 Sep 2026 to 24 Dec 2026, as captured |
| Domain age | 2 months registered Sep 2026, NameCheap |
| Green hosting | Yes per The Green Web Foundation |
| Page build | 56 JS files, 5 CSS files 6 third-party domains, code splitting |
| Brand colours |
Storage: 3 items
| Name | Lifetime | Set by |
|---|---|---|
| sb_anonymous_id | 1y | - |
| sb_attribution | 3mo | - |
| __cf_bm | < 1h | Cloudflare |
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 544 ms | fair, faster than 27% of sites |
| Largest contentful paint | 1,940 ms | good |
| Layout shift | 0.01 | good |
| Page weight | 5.6 MB | heavy |
| Image weight | 3.6 MB | heavy |
| Images | 37 | 30 larger than shown, 30 without width and height, 10 without alt text |
| Third-party domains | 6 | |
| 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 CSS signals +10 AI copy signals +5 AI palette signals +5 AI stack signals +10 - 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.