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Linva - language learning

Turn any text into a bilingual lesson with native-quality audio, shadowing and phoneme-level pronunciation scoring. Learn a language by immersion on iPhone, iPad and Mac.

Education
United States Estimated origin: United States

Added July 21, 2026 · Last analysed July 21, 2026 · via · 71% 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 21 July 2026; the live site may have changed since.

Linva - language learning has the basics covered well, with complete legal pages, a thorough launch checklist, and fast page loads. Worth fixing first: missing several security headers and no email security records.

Launched on Product Hunt on July 21, 2026. The site is served through Cloudflare. Our crawler found 4 technologies on this site, covering CDN, mobile, protocol, and seo. The stack includes Apple App Store, Cloudflare, and Google Search Console.

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

Vibe Score 50 · Many 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 (4)

Infrastructure
CDN Cloudflare
Protocol HTTP/3
Build & Framework
Mobile Apple App Store
Analytics & Marketing
SEO Google Search Console

Infrastructure

Network
AS13335 · US
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 16 Jun 2026 to 14 Sep 2026
Certificate as captured in this snapshot, not a live check.

Email Security

SPF Not published. Your domain can be spoofed in phishing emails.
DKIM (via apex sayai.us) Detected on apex sayai.us
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 61 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.
Meta description is 170 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.

Performance How?

117 ms Server response
90% Faster than peers
424 ms Largest contentful paint
0.08 Cumulative layout shift
1.8 MB Page weight
1.7 MB Image weight
1 Third-party domains
0 Console errors
0 Failed requests

12 images: 8 oversized, 3 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
AI copy signals +5
AI palette signals +5
AI writing signals +5
AI code-structure signals +5
Unfilled template placeholders +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 (4 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy.html?lang=en
Terms of Service
/terms.html?lang=en
92% unique

Security Headers (0/6)

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

Build

3 JS files
1 CSS files
1 Third-party domains

Brand Colours

App Manifest

Linva — Immersive language learning
display: browser 2 icons
theme #6E78CE
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.