New: The State of Indie Launches: May 2026. What 17,652 indie launch pages run on once you strip Vercel out. Read

← Back to browse

Fx

Show HN: Realistic procedural fire effect via naive algorithm

fx.leftium.com · Added June 4, 2026 · Last analysed June 4, 2026 · via Hacker News · 73% 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 4 June 2026; the live site may have changed since.

Fx is early-stage. Worth fixing first: missing several security headers, incomplete legal pages, and no sitemap.

Launched on Hacker News on June 4, 2026. The site is hosted on Amazon.com in the United States, with a domain registered in 2010. We've detected 3 technologies on this site, covering hosting, meta-frameworks, and security. The stack includes SvelteKit, HSTS, and Vercel.

It's on a stack we've seen on only 13 launches.

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

Vibe Score 5 · Few AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (3)

Infrastructure
Hosting Vercel
Security HSTS
Build & Framework
Meta-framework SvelteKit

Infrastructure

Network
AS16509 · US
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 6 May 2026 to 4 Aug 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
15.8 years
Registered Aug 2010 · Porkbun LLC

Email Security

SPF ~all (via apex leftium.com) Soft-fail (~all). Common and accepted.
DKIM (via apex leftium.com) Detected on apex leftium.com
DMARC Not published. Receivers fall back to permissive defaults.
?
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 (0)

This site uses no client-side storage we could detect on page load.

Readiness Breakdown How?

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

Performance How?

287 ms Server response
59% Faster than peers
572 ms Largest contentful paint
0.19 Cumulative layout shift
47 KB Page weight
1 Third-party domains

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 code-structure signals +5

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

sitemap.xml
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 (1/6)

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

Build

HTML minified
CSS minified
JS minified
0 JS files
3 CSS files
1 Third-party domains
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.