← Back to browse

DerDieDas Professor

Memorise der, die, das with adaptive quizzes and audio. A1–C2 vocabulary.

Education

Visit site · Added June 27, 2026 · Last analysed June 27, 2026 · via · 80% 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 27 June 2026; the live site may have changed since.

DerDieDas Professor scores well across the board, with complete legal pages, a thorough launch checklist, and clean crawl signals. Visible gaps: missing several security headers and incomplete email security.

Launched on Product Hunt on June 27, 2026. The site is hosted on Cloudflare in the United Arab Emirates, with a domain registered 10 weeks before launch. The crawl picked up 12 technologies on this site, covering security, ui library, AI builders, and analytics. The stack includes Tailwind CSS, Cloudflare, and Cloudflare Bot Management.

For context, it's on one of the most common stacks we track, shared by 160 launches.

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

8.6
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
3/3 Legal
Complete
2/2 Web Standards
Complete
Vibe Score 100 · Strong AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (12)

Infrastructure
CDN Cloudflare (2)
Hosting IONOS
Security Cloudflare Bot Management
HSTS
Email
Business email IONOS Email
Build & Framework
CSS framework Tailwind CSS
Developer tools Vite
JavaScript library React Router
UI library Lucide Icons
shadcn/ui
Analytics & Marketing
Analytics Tinybird
AI & Emerging
AI builder Lovable (3)

Infrastructure

Network
AS13335 · AE
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 14 Jun 2026 to 12 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
2 months
Registered Apr 2026 · 1&1 Internet SE

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
DKIM (via apex kiszely.app) Detected on apex kiszely.app
DMARC p=none (via apex kiszely.app) None (p=none). Monitoring only.
?
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 (4)

Cookies (2)
NameLifetimeDetected as
__cf_bm < 1h Cloudflare
__dpl 7d -
Local storage (2)
KeySizeDetected as
__lovable_anonymous_id 36 B Lovable
__lovable_session 75 B -

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 64 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?

232 ms Server response
66% Faster than peers
600 ms Largest contentful paint
0.00 Cumulative layout shift
2.0 MB Page weight
1.6 MB Image weight
2 Third-party domains
0 Console errors
0 Failed requests

4 images: 4 oversized, 4 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?

SignalPoints
Recognised AI builder signature +100
Default scaffold favicon +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

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 (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).
72% unique

Security Headers (3/6)

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

Build

3 JS files
1 CSS files
2 Third-party domains

Brand Colours

App Manifest

DerDieDas Professor
display: standalone 2 icons
theme #faf8f5
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.