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Halfmarble

Show HN: I have Parkinson's, so I defensively patented a battery-free tracker

Added April 27, 2026 · Last analysed April 27, 2026 · via Hacker News · 62% unique tagline

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Screenshot of Halfmarble

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

Halfmarble is missing several launch fundamentals. Worth fixing first: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Hacker News on April 27, 2026. The site is hosted on GitHub Pages and served through Fastly, with a domain registered in 2021. Our crawler found 7 technologies on this site, covering analytics, CDN, CSS frameworks, and DNS providers. The stack includes Tailwind CSS, Fastly, and GitHub Pages.

It's also running the same core stack as 207 other launches.

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

0.8
StackScope Score
Poor
29/100 Launch Readiness
Needs work
0/6 Security Headers
Poor
0/3 Legal
Missing
0/2 Crawl files
Missing
Vibe Score 18 · 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
CDN Fastly (2)
DNS Google Domains DNS
Hosting GitHub Pages (2)
Email
Business email Google Workspace (3)
Build & Framework
CSS framework Tailwind CSS (2)
Font Google Fonts
Analytics & Marketing
Analytics Plausible

Infrastructure

Network
FASTLY - Fastly, Inc., US
AS54113 · US
DNS
Google Domains DNS
Authoritative nameserver
DNSSEC
Enabled
DNSKEY records published. DNS responses signed.
SSL Certificate
Let's Encrypt
Valid 24 Mar 2026 to 22 Jun 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
5.4 years
Registered Feb 2021 · Squarespace Domains II LLC

Email Security

✓
SPF ~all Soft-fail (~all). Common and accepted.
✓
DKIM Detected via known email provider
✗
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?

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

Vibe Score Breakdown How?

SignalPoints
AI writing signals +3
AI typography signals +15

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
Content-Signal
? No directive declared
Link headers
? None advertised

Well-Known Files

✗ robots.txt
✗ sitemap.xml
✗ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

? Privacy Policy not detected
? Terms of Service not detected
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
Detection works best on English language sites.

Security Headers (0/6)

✗
Referrer-Policy
✗
X-Frame-Options
✗
Permissions-Policy experimental (check browser support)
✗
X-Content-Type-Options
✗
Content-Security-Policy
✗
Strict-Transport-Security
–
X-XSS-Protection deprecated (use Content-Security-Policy)

Performance

224ms response time
Faster than 67% of sites
3 third-party domains loaded

Build

2 JS files
1 CSS files
3 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.