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Plastron

Show HN: Plastron – A spreadsheet you grow into an app, in one index.html

plastron.ca · Added June 9, 2026 · Last analysed June 9, 2026 · via Hacker News · 67% 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 9 June 2026; the live site may have changed since.

Plastron is missing several launch fundamentals. Visible gaps: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Hacker News on June 9, 2026. The site is hosted on Fastly in the United States, with a domain registered 4 weeks before launch. Our crawler found 3 technologies on this site, covering CDN, DNS providers, and hosting. The stack includes Fastly, GitHub Pages, and GoDaddy DNS.

Notably, it's on one of the most common stacks we track, shared by 1,019 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
CDN Fastly
DNS GoDaddy DNS
Hosting GitHub Pages

Infrastructure

Network
AS54113 · US
DNS
GoDaddy DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 8 Jun 2026 to 6 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
1 month
Registered May 2026 · Go Daddy Domains Canada, Inc

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 (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)

Performance How?

234 ms Server response
66% Faster than peers
368 ms Largest contentful paint
0.00 Cumulative layout shift
499 KB Page weight
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 writing 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

robots.txt
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 (0/6)

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

Build

HTML minified
CSS minified
JS minified
0 JS files
0 CSS files
0 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.