Audit Result

Found 26 characters. Keep title between 30 and 60 characters.

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

Missing meta description.

Fix: Add <meta name="description" content="..."> in <head> with a clear page summary.

Canonical link not found.

Fix: Add <link rel="canonical" href="https://example.com/page"> to avoid duplicate URL ambiguity.

No favicon link found in <head>.

Fix: Add <link rel="icon" href="/favicon.ico"> to ensure browser tab and bookmark visibility.

Viewport configured: width=device-width,initial-scale=1,interactive-widget=resizes-visual

Language declared as "de".

Found 16 H1 tags.

Fix: Use a single, descriptive <h1> that states the primary purpose of the page.

Valid heading flow across 18 headings.

3 of 5 images are missing alt text.

Fix: Add meaningful alt attributes to all informative images for accessibility and image SEO.

Page is served over HTTPS.

2 HTTPS hardening issues detected.

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

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

Core security headers were detected.

Content Security Policy looks restrictive and avoids common unsafe directives.

• • Content-Security-Policy: default-src 'none'; script-src 'self' 'wasm-unsafe-eval'; worker-src 'self' blob:; style-src 'self'; font-src 'self'; media-src 'self' blob:; img-src 'self' blob: data:; connect-src 'self'; object-src 'none'; base-uri 'none'; form-action 'self'; frame-ancestors 'none'

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

Server response headers do not expose version tokens.

Domain does not appear to be behind Cloudflare.

Loaded in 0.71s (perceived).

0 scripts and 3 styles may block rendering.

• • style: https://ak.knattercards.de/static/public.css
• • style: https://ak.knattercards.de/static/design-system.css
• • style: https://ak.knattercards.de/static/purchase-flow.css?v=15

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

Text-like assets appear compressed.

robots.txt missing or inaccessible (404).

Fix: Create a robots.txt file at https://ak.knattercards.de/robots.txt and allow intended crawlers.

Sitemap missing or inaccessible at https://ak.knattercards.de/sitemap.xml (404).

Fix: Publish a sitemap.xml and reference it in robots.txt with: Sitemap: https://ak.knattercards.de/sitemap.xml

No robots meta tag defined.

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

1 of 24 controls are missing labels.

• • input[type="checkbox"] (private)

Fix: Associate each form control with a visible label, aria-label, or aria-labelledby.

Missing landmarks: nav.

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

4 interactive elements appear smaller than 48px.

• • a (Datenschutz) - 57x12px
• • a (Ankaufs-AGB) - 58x12px
• • a (Anbieter) - 41x12px
• • a.operator-credit (Technischer Betrieb durch digitory.cloud) - 482x13px

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

Missing og:title or og:description.

Fix: Add og:title and og:description tags to control social preview text.

og:image is missing.

Fix: Add <meta property="og:image" content="https://..."> with a high-quality share image.

twitter:card is missing.

Fix: Add <meta name="twitter:card" content="summary_large_image"> for better previews on X.

No JSON-LD schema scripts found.

Fix: Add JSON-LD structured data matching your page type (Organization, Article, Product, etc.).

Manifest or Apple touch icon is missing.

Fix: Link your web app manifest and apple-touch-icon for improved install/share experiences.

5 social preview quality issues detected.

• • ISSUE: og:url should be an absolute URL.
• • ISSUE: og:title should typically be between 10 and 70 characters.
• • ISSUE: og:description should typically be between 50 and 200 characters.
• • ISSUE: Use an absolute URL for og:image or twitter:image.
• • ISSUE: twitter:card is missing.
• • 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.

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

Checked 3 links. No broken internal links found.

No broken external links found in checked URLs.

1 links are empty, invalid, or placeholder-only.

• • href="(empty)" text="Beleg herunterladen ↓"

Fix: Replace empty/#/javascript href values with real destinations or use buttons for non-navigation actions.

Largest Contentful Paint: 1.26s.

Cumulative Layout Shift: 0.000.

Total Blocking Time estimate: 0ms.

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

No console/page runtime errors detected during audit.