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I made a crossword app for language learners

Cranki is a crossword app for language learners that uses spaced repetition to turn your custom word list into vocabulary crosswords.

Education

Added April 6, 2026 · Last analysed April 10, 2026 · via Hacker News · 57% unique tagline

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Screenshot of I made a crossword app for language learners

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 April 2026; the live site may have changed since.

I made a crossword app for language learners ships with the basics, with a thorough launch checklist, fast page loads, and clean crawl signals. Worth fixing first: missing several security headers, incomplete legal pages, and incomplete email security.

Launched on Hacker News on April 6, 2026. The site is served through Cloudflare, with a domain registered 1 week before launch. We've detected 6 technologies on this site, covering analytics, CDN, developer tools, and DNS providers. The stack includes Cloudflare, Cloudflare DNS, and HTTP/3.

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

4.7
StackScope Score
Fair
88/100 Launch Readiness
Launch ready
0/6 Security Headers
Poor
0/3 Legal
Missing
2/2 Crawl files
Complete
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 (6)

Infrastructure
CDN Cloudflare (3)
DNS Cloudflare DNS
Protocol HTTP/3 (2)
Email
Email forwarding Namecheap Email Forwarding (2)
Build & Framework
Developer tools Vite
Analytics & Marketing
Analytics Umami

Infrastructure

Network
CLOUDFLARENET - Cloudflare, Inc., US
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Domain Age
3 months
Registered Mar 2026 · Namecheap Inc.

Email Security

✓
SPF ~all Soft-fail (~all). Common and accepted.
?
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.

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
✓ Semantic HTML (nav, main, article)
- Favicon present

Vibe Score Breakdown How?

SignalPoints
AI palette 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

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

Well-Known Files

✓ robots.txt
✓ sitemap.xml (1 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 (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

98ms response time
Faster than 94% of sites
2 third-party domains loaded

Build

3 JS files
1 CSS files
2 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.