Prisma Sudoku

Prisma ist Sudoku fürs iPhone – kostenlos, ohne Werbung, ohne Abo und offline. Vier Schwierigkeiten, tägliches Rätsel, ruhiger Look, ohne Konto, ohne Tracking.

Games

Added July 10, 2026 · Last analysed July 10, 2026 · via · 78% unique tagline

Own this Launch?

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 10 July 2026; the live site may have changed since.

Prisma Sudoku is largely in shape, with a thorough launch checklist and clean crawl signals. Main gaps: missing Content-Security-Policy and Strict-Transport-Security, incomplete legal pages, and no email security records.

Launched on Product Hunt on July 10, 2026. The site is served through Cloudflare, with a domain registered 2 days before launch. The crawl picked up 5 technologies on this site, covering analytics, CDN, DNS providers, and protocol. The stack includes Cloudflare, Cloudflare DNS, and Cloudflare Web Analytics.

For context, it's more locked down than the typical Product Hunt launch.

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

6.9

StackScope Score

Good

100/100 Launch Readiness

Launch ready

4/6 Security Headers

Decent

0/3 Legal

Missing

2/2 Crawl files

Complete

77/100 Performance

Fast

Vibe Score 5 · 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 (5)

Infrastructure

CDN	Cloudflare
DNS	Cloudflare DNS
Protocol	HTTP/3

Analytics & Marketing

Analytics	Cloudflare Web Analytics (2)
SEO	Google Search Console

Infrastructure

Network

CLOUDFLARENET - Cloudflare, Inc., US

AS13335 · US

DNS

Cloudflare DNS

Authoritative nameserver

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

Green hosting

Green hosted

Host runs on renewable energy. Data from The Green Web Foundation.

SSL Certificate

Google Trust Services

Valid 8 Jul 2026 to 6 Oct 2026

Certificate as captured in this snapshot, not a live check.

Domain Age

4 days

Registered Jul 2026 · CloudFlare, 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 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)

⚠

Page title is 63 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.

Performance How?

194 ms Server response

72% Faster than peers

664 ms Largest contentful paint

0.00 Cumulative layout shift

2.6 MB Page weight

2.6 MB Image weight

2 Third-party domains

0 Console errors

0 Failed requests

⚠ 7 images: 7 oversized, 7 without width/height

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?

Signal	Points
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

Content-Signal

? No directive declared

Link headers

? None advertised

Well-Known Files

✓ robots.txt

✓ sitemap.xml (7 URLs)

✗ 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 (4/6)

✓

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)

Build

1 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.