Audit Result

Found 64 characters. Keep title between 30 and 60 characters.

Fix: Add a unique <title> tag describing the main page intent in 30-60 characters.

Found 128 characters. Good snippet length.

Canonical found: https://derdiedas.kiszely.app/

Favicon found and reachable: /favicon.png (HTTP 200).

Viewport configured: width=device-width, initial-scale=1.0

Language declared as "en".

Exactly one H1 found: "DerDieDasProfessor".

Valid heading flow across 6 headings.

All 4 images include alt text.

Page is served over HTTPS.

1 HTTPS hardening issues detected.

• • Could not probe the HTTP version of this page.
• • Strict-Transport-Security: max-age=31536000; includeSubDomains

Fix: Set Strict-Transport-Security with a long max-age, add includeSubDomains, and redirect all HTTP requests to HTTPS.

Missing: content-security-policy, x-frame-options.

Fix: Add the missing security headers at your reverse proxy or application layer.

Content-Security-Policy header is missing.

• • Missing Content-Security-Policy header.

Fix: Define a restrictive Content-Security-Policy and avoid unsafe directives such as unsafe-inline and unsafe-eval.

No first-party cookies were set during the initial page load.

Server response headers do not expose version tokens.

Domain appears to be behind Cloudflare.

• • server: cloudflare
• • cf-ray: a4c46951ab46c5ba-IAD

Loaded in 1.18s (perceived).

0 scripts and 1 styles may block rendering.

• • style: https://derdiedas.kiszely.app/assets/index-DGquPzry.css

Fix: Defer non-critical scripts and inline critical CSS to improve first paint speed.

4 text resources look uncompressed.

• • https://derdiedas.kiszely.app/__l5e/trackevents (application/json)
• • https://ralllkgafzyzuvjzghqj.supabase.co/rest/v1/quiz_sessions?select=score%2Ctotal&preset=eq.grundschule25&order=created_at.desc&limit=1 (application/json; charset=utf-8)
• • https://ralllkgafzyzuvjzghqj.supabase.co/rest/v1/quiz_sessions?select=score%2Ctotal&preset=eq.placement50&order=created_at.desc&limit=1 (application/json; charset=utf-8)
• • https://ralllkgafzyzuvjzghqj.supabase.co/rest/v1/quiz_sessions?select=score%2Ctotal&preset=eq.custom&order=created_at.desc&limit=1 (application/json; charset=utf-8)

Fix: Enable Brotli or Gzip compression for HTML, CSS, JS, and JSON responses.

Found robots.txt (200).

Found sitemap (200) at https://derdiedas.kiszely.app/sitemap.xml.

No robots meta tag defined.

Fix: Add <meta name="robots" content="index,follow"> (or the intended directive) in <head>.

All 0 controls are labeled.

Missing landmarks: header, main, footer.

Fix: Use semantic regions (<header>, <nav>, <main>, <footer>) for navigation and assistive tech.

12 interactive elements appear smaller than 48px.

• • a.inline-flex.items-center (All words) - 24x24px
• • a.inline-flex.items-center (Practice) - 24x24px
• • a.inline-flex.items-center (High Scores) - 24x24px
• • a.inline-flex.items-center (Sign in to view progress) - 24x24px
• • a.text-muted-foreground.underline-offset-4 (Sign in) - 41x16px
• • a.mb-2.text-sm (Latest: Gemma Burschen! +30 football words (24 June) →) - 405x20px
• • button.inline-flex.items-center (Enable notifications) - 36x36px
• • a.text-sm.text-primary (Sign in to unlock your personalised learning journey →) - 381x20px
• • a.mt-4.text-sm (Blog post: How to learn Der-Die-Das faster →) - 314x20px
• • a.underline-offset-4.hover:underline (Terms & Conditions) - 116x16px
• • a.underline-offset-4.hover:underline (Privacy Policy) - 82x16px
• • button.inline-flex.items-center (Feedback) - 131x40px

Fix: Increase target size to at least 48x48 CSS pixels for touch interactions.

Core Open Graph tags are present.

og:image is present and absolute.

twitter:card set to summary_large_image.

JSON-LD schema detected.

Manifest and Apple touch icon are configured.

1 social preview quality issues detected.

• • ISSUE: Preview image is below recommended size (1200x630).
• • GUIDELINE: Optimal og:title length: 40-60 characters (acceptable: 10-70).
• • GUIDELINE: Optimal og:description length: 110-160 characters (acceptable: 50-200).
• • GUIDELINE: Optimal preview image size: 1200x630 pixels.
• • GUIDELINE: Optimal preview image aspect ratio: 1.91:1.
• • GUIDELINE: Optimal preview image file size: under 5 MB.
• • GUIDELINE: Recommended twitter:card: summary_large_image.
• • MEASURED: Image size: 0.88 MB
• • MEASURED: Image dimensions: 1200x629

Fix: Use absolute OG/Twitter URLs, keep metadata lengths in recommended ranges, and provide a preview image near 1200x630 under 5MB.

Checked 12 links. No broken internal links found.

1 external links returned errors or timed out.

• • https://lacikiszely.medium.com/der-die-das-how-to-learn-german-articles-faster-9dcbc3b2b521 (HTTP 403)

Fix: Replace dead external URLs or point to working alternatives.

All 14 links use non-empty href values.

Largest Contentful Paint: 1.18s.

Cumulative Layout Shift: 0.000.

Total Blocking Time estimate: 23ms.

No failed CSS/JS/image/font/media requests detected.

No console/page runtime errors detected during audit.