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Lumyn School

Ten self-contained field missions, a three-minute challenge, practical cases, and working templates for accountable production AI delivery.

Education

Added August 24, 2026 · Last analysed August 24, 2026 · via

StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 24 August 2026; the live site may have changed since.

Lumyn School is partway there, with a thorough launch checklist and clean crawl signals. Main gaps: missing several security headers, incomplete legal pages, and incomplete email security.

Launched on Product Hunt on August 24, 2026. The site is hosted on GitHub Pages and served through Fastly. The crawl picked up 5 technologies on this site, covering AI builders, CDN, DNS providers, and business email. The stack includes Fastly, GitHub Pages, and GoDaddy DNS.

For context, it's on one of the most common stacks we track, shared by 2,452 launches.

If you own this site, refresh the snapshot and see the full fix list any time →

Vibe Score 100 · Strong AI signals
How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (5)

Infrastructure
CDN Fastly
DNS GoDaddy DNS
Hosting GitHub Pages
Email
Business email Microsoft 365
AI & Emerging
AI builder Replit

Infrastructure

Network
AS54113 · US
DNS
GoDaddy DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Let's Encrypt
Valid 8 Jul 2026 to 6 Oct 2026
Certificate as captured in this snapshot, not a live check.

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
DMARC p=none None (p=none). Monitoring only.
?
MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.
?
TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (1)

Local storage (1)
KeySizeDetected as
lumyn-fde-guide-stars-v2 38 B -

Readiness Breakdown How?

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 61 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.
Meta description is 184 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.

Performance How?

444 ms Server response
38% Faster than peers
1508 ms Largest contentful paint
0.00 Cumulative layout shift
1.9 MB Page weight
1.8 MB Image weight
1 Third-party domains
0 Console errors
0 Failed requests

3 images: 3 oversized, 2 missing alt text

Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.

Vibe Score Breakdown How?

SignalPoints
AI onboarding signals +5
AI writing signals +5
Recognised AI builder signature +100

This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.

AI Stance

Welcomes AI crawlers
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (43 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? Privacy Policy not detected
? Terms of Service not detected
Detection works best on English language sites.

Security Headers (0/6)

Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

2 JS files
1 CSS files
1 Third-party domains

Brand Colours

App Manifest

Lumyn FDE School
display: standalone 2 icons
theme #fafaf7
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.