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Jumpjet

Show HN: Jumpjet – a WASM runtime for game developers

Games

jumpjet.dev · Added June 19, 2026 · Last analysed June 19, 2026 · via Hacker News · 62% 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 19 June 2026; the live site may have changed since.

Jumpjet still has work before launch. What needs work: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Hacker News on June 19, 2026. The site is hosted on Fastly in the United States, with a domain registered 3 days before launch. The crawl picked up 6 technologies on this site, covering analytics, baas, CDN, and CSS frameworks. The stack includes Tailwind CSS, Fastly, and Firebase.

For context, it's running the same core stack as 105 other launches.

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

Vibe Score 50 · Many AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (6)

Infrastructure
CDN Fastly
DNS GoDaddy DNS
Hosting GitHub Pages
Build & Framework
BaaS Firebase (2)
CSS framework Tailwind CSS (2)
Analytics & Marketing
Analytics Google Analytics (3)

Infrastructure

Network
AS54113 · US
DNS
GoDaddy DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 16 Jun 2026 to 14 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
4 days
Registered Jun 2026 · GoDaddy.com, LLC

Email Security

SPF Not published. Your domain can be spoofed in phishing emails.
?
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.

Storage (4)

Cookies (2)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_1SH6JGTE8P 1y Google Analytics
IndexedDB (2)
DatabaseVersionDetected as
firebase-heartbeat-database 1 Firebase
firebase-installations-database 1 Firebase

Readiness Breakdown How?

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

Performance How?

249 ms Server response
64% Faster than peers
448 ms Largest contentful paint
0.01 Cumulative layout shift
861 KB Page weight
2 Third-party domains
0 Console errors
0 Failed requests

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 copy signals +5
AI code-structure signals +5
Recognised AI builder signature +30

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

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

Well-Known Files

robots.txt
sitemap.xml
security.txt
llms.txt
ads.txt
humans.txt
? Privacy Policy not detected
? Terms of Service not detected
? Consent manager not detected
Analytics detected; tracking fires without visitor opt-in.
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
0 CSS files
2 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.