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Planckstar

A 3D Notes editor where position is content. Place every milestone yourself; keep notes, checklists, files and models inside them.

Productivity
United States Estimated origin: United States

Added August 21, 2026 · Last analysed August 21, 2026 · via

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 21 August 2026; the live site may have changed since.

Planckstar has the basics covered well, with complete legal pages, a thorough launch checklist, and clean crawl signals. What needs work: missing several security headers and incomplete email security.

Launched on Product Hunt on August 21, 2026. The site is hosted on Vercel and served through Cloudflare, with a domain registered in 2025. Our crawler found 13 technologies on this site, covering business email, analytics, CDN, and CSS frameworks. The stack includes Next.js, React, and Tailwind CSS.

It's also running the same core stack as 13,688 other launches.

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

Vibe Score 30 · Some 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 (13)

Infrastructure
CDN Cloudflare
DNS Cloudflare DNS
Hosting Vercel
Security HSTS
Email
Business email GoDaddy Email
Microsoft 365
Build & Framework
CSS framework Tailwind CSS
Framework React
JavaScript library Three.js
Meta-framework Next.js (4)
Analytics & Marketing
Analytics Vercel Analytics medium
SEO Google Search Console
Business Tools
Error tracking Sentry

Infrastructure

Network
AS16509 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Let's Encrypt
Valid 19 Aug 2026 to 17 Nov 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
1 year
Registered Mar 2025 · GoDaddy.com, LLC

Email Security

SPF -all Strict (-all). Strong.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
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
Open Graph tags (title, image, description)
Twitter card meta tags
Canonical URL declared
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)

Performance How?

450 ms Server response
34% Faster than peers
432 ms Largest contentful paint
0.02 Cumulative layout shift
1.3 MB Page weight
628 KB Image weight
1 Third-party domains
0 Console errors
0 Failed requests

7 images: 7 oversized, 4 without width/height, 3 missing alt text

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 onboarding signals +5
AI palette signals +5
AI writing signals +5
AI stack signals +10

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

Blocks AI crawlers
llms.txt published
9 AI bots blocked in robots.txt
ai-train = no
search = yes
? ai-input (not declared)
? None advertised

Well-Known Files

robots.txt
sitemap.xml (6 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy
Terms of Service
/terms
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
94% unique

Security Headers (1/6)

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

Build

Code splitting
19 JS files
1 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.