CourseSmith
Turn a topic, document, link, repo or recording into narrated courses, vertical shorts and product videos — with code, maths and diagrams rendered…
Estimated origin: United States
Added 10 Nov 2026
Analysed 10 Nov 2026
via 
What we found
- It sends none of the six security headers we check.
- It publishes DMARC but no SPF record, so receivers cannot tell which servers may send its email.
- Built with React, the site is hosted on Railway and served through Cloudflare, with a domain registered 4 months before launch.
- It welcomes AI crawlers and publishes an llms.txt.
Built with: 17 technologies · Indie stack
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For light pages
<a href="https://firstsited.com/launch/ditrnebb/coursesmith"><img src="https://firstsited.com/badge/ditrnebb/stack.svg" alt="CourseSmith tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/ditrnebb/coursesmith"><img src="https://firstsited.com/badge/ditrnebb/stack.svg?theme=dark" alt="CourseSmith 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 |
Railway
(2)
|
Hosting |
Google Workspace
(2)
|
Business email |
Resend
|
Transactional email |
| Build & Framework | |
Tailwind CSS
|
CSS framework |
Vite
|
Developer tools |
Google Fonts
|
Font |
React
|
Framework |
hast-util-to-jsx-runtime
|
JavaScript library |
Marked
|
JavaScript library |
React Markdown
|
JavaScript library |
React Router
|
JavaScript library |
Lucide Icons
|
UI library |
| Analytics & Marketing | |
PostHog
|
Analytics |
Google Search Console
|
SEO |
| Business Tools | |
Driver.js
|
Onboarding |
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) | |
| Page title is 73 characters Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible. |
| 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 /legal/privacy | |
| Terms of service /legal/terms | |
| Consent manager analytics set no tracking cookies on our visit (it may be opt-in) |
Mentions: GDPR, Cookies, DPO, Do Not Sell, Updated: November 7, 2026
| robots.txt | |
| sitemap.xml 141 URLs | |
| security.txt | |
| 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 | Not published | |
| DMARC p=quarantine | Quarantine | |
| DKIM | Found | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Without SPF, receivers cannot tell which servers may send email for this domain.
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 31 Oct 2026 to 29 Jan 2027, as captured |
| Domain age | 4 months registered Jun 2026, GoDaddy.com, LLC |
| Green hosting | Yes per The Green Web Foundation |
| Page build | 1 JS file, 2 CSS files 4 third-party domains |
| App manifest | CourseSmith display browser; 2 icons |
| Brand colours |
Storage: 0 items
Nothing stored in the browser on page load.
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 233 ms | good, faster than 58% of sites |
| Largest contentful paint | 2,592 ms | fair |
| Layout shift | 0.19 | some |
| Page weight | 5.4 MB | heavy |
| Image weight | 2.1 MB | heavy |
| Images | 115 | 19 larger than shown, 106 without width and height, 113 without alt text |
| Third-party domains | 4 | |
| 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 copy signals +5 AI writing signals +5 AI typography signals +15 - 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.