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Flyable Artemis simulator (Svelte and rk4)

Fly NASA's Artemis II mission in real-time (with you at the controls). Real OEM trajectory data, n-body physics, maneuver planning.

Added April 6, 2026 · Last analysed April 10, 2026 · via Hacker News · 57% unique tagline

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 10 April 2026; the live site may have changed since.

Flyable Artemis simulator (Svelte and rk4) has the basics covered well, with complete legal pages, well-configured email security, and clean crawl signals. Worth fixing first: missing several security headers.

Launched on Hacker News on April 6, 2026. The site is hosted on Vercel, with a domain registered in 2023. Our crawler found 7 technologies on this site, covering CSS frameworks, DNS providers, transactional email, and hosting. The stack includes SvelteKit, Tailwind CSS, and Amazon SES.

It's also one of 41 launches on this exact stack.

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

6.3
StackScope Score
Good
52/100 Launch Readiness
Partially ready
3/3 Legal
Complete
2/2 Crawl files
Complete
Vibe Score 8 · Few 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 (7)

Infrastructure
DNS GoDaddy DNS
Hosting Vercel (2)
Security HSTS (2)
Email
Transactional email Amazon SES (2)
Build & Framework
CSS framework Tailwind CSS
Meta-framework SvelteKit (2)
Analytics & Marketing
SEO Google Search Console

Infrastructure

Network
AS16509 · US
DNS
GoDaddy DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Domain Age
2.6 years
Registered Dec 2023 · GoDaddy.com, LLC

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=quarantine Quarantine (moderate)
?
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.

Readiness Breakdown How?

Custom title and meta description (partial) missing custom <title>
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)
- Open Graph tags (title, image, description)
- Canonical URL declared
- Twitter card meta tags

Vibe Score Breakdown How?

SignalPoints
AI palette signals +5
AI writing signals +3

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
1 AI bot blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (1507 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/sources/space-policy-online
Terms of Service
/tools/freertos
94% unique

Security Headers (1/6)

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

Performance

527ms response time
Faster than 33% of sites
1 third-party domains loaded

Build

1 JS files
3 CSS files
1 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.