New: The State of Indie Launches: June 2026. Who adopts a piece of infrastructure tells you how new it is. Read

← Back to browse

Deutsch Lernen

Learn German with 300+ words and audio, A1–C2 grammar lessons, spaced-repetition flashcards, mini-games and an AI tutor. Interface in 28 languages.

Education

Added July 4, 2026 · Last analysed July 4, 2026 · via · 57% 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 4 July 2026; the live site may have changed since.

Deutsch Lernen is partway there, with a thorough launch checklist and clean crawl signals. Main gaps: missing several security headers, incomplete legal pages, and incomplete email security.

Launched on Product Hunt on July 4, 2026. The site is hosted on Google Cloud, with a domain registered 3 weeks before launch. The crawl picked up 15 technologies on this site, covering advertising, AI builders, analytics, and APIs. The stack includes Clerk, Expo, and Svelte.

For context, it's one of only 31 launches we've crawled running Expo.

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

Vibe Score 100 · Strong 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 (15)

Infrastructure
DNS Name.com
Hosting Google Cloud
Protocol HTTP/3
Security HSTS
Build & Framework
API Wikimedia
Auth Clerk (4)
Developer tools Rspack
Framework Svelte
Meta-framework Expo
Analytics & Marketing
Advertising Google Ads (3)
Analytics Google Analytics (2)
Tag management Google Tag Manager medium
Commerce & Payments
Payments RevenueCat
AI & Emerging
AI builder Replit
Other
Backend framework Express

Infrastructure

DNS
Name.com
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
Let's Encrypt
Valid 11 Jun 2026 to 9 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
23 days
Registered Jun 2026 · Name.com, 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=reject Reject (strict). Strong.
?
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 (10)

Cookies (6)
NameLifetimeDetected as
GAESA 29d -
WMF-Uniq 1y Wikimedia
_gcl_au 2mo Google Ads
__client 1y Clerk
__client_uat 1y Clerk
__client_uat_l0iCPalW 1y Clerk
Local storage (4)
KeySizeDetected as
@phonetics_progress_v1 40 B -
revenuecat_user_id 47 B RevenueCat
_gcl_ls 277 B Google Ads
__clerk_environment 6.9 KB Clerk

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?

228 ms Server response
67% Faster than peers
2996 ms Largest contentful paint
0.23 Cumulative layout shift
31.3 MB Page weight
391 KB Image weight
3 Third-party domains
0 Console errors
0 Failed requests

5 images: 4 oversized, 5 without width/height, 1 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 writing signals +5
AI iconography signals +3
Recognised AI builder signature +100

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

Welcomes AI crawlers
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (1 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? 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 (1/6)

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

Build

Code splitting
4 JS files
1 CSS files
3 Third-party domains

Brand Colours

App Manifest

Deutsch Lernen — Learn German
display: standalone 2 icons
theme #1A237E
education books productivity
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.