Audit Result
UUID: 019d683e-c3df-725f-b7d4-125267d533fb
https://www.yildiz-tn.de/
Scanned 4 months ago
Meta Information
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Title Tag Warning
Found 61 characters. Keep title between 30 and 60 characters.
Fix: Add a unique <title> tag describing the main page intent in 30-60 characters.
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Meta Description Pass
Found 140 characters. Good snippet length.
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Canonical URL Pass
Canonical found: https://www.yildiz-tn.de/
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Viewport Meta Pass
Viewport configured: width=device-width, initial-scale=1
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HTML Lang Pass
Language declared as "de".
Content Structure
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H1 Tag Pass
Exactly one H1 found: "Yildiz Tief &Netzausbau GmbH".
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Heading Hierarchy Pass
Valid heading flow across 12 headings.
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Image Alt Text Error
1 of 7 images are missing alt text.
Fix: Add meaningful alt attributes to all informative images for accessibility and image SEO.
Technical Optimization
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HTTPS Pass
Page is served over HTTPS.
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HSTS & HTTPS Redirect Warning
2 HTTPS hardening issues detected.
- • Missing Strict-Transport-Security header.
- • Could not probe the HTTP version of this page.
Fix: Set Strict-Transport-Security with a long max-age, add includeSubDomains, and redirect all HTTP requests to HTTPS.
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Security Headers Warning
Missing: strict-transport-security, content-security-policy, x-frame-options, x-content-type-options, referrer-policy.
Full HTTP headers (21)
- • accept-ranges: bytes
- • access-control-allow-origin: *
- • age: 0
- • cache-control: max-age=600
- • content-encoding: gzip
- • content-length: 4633
- • content-type: text/html; charset=utf-8
- • date: Tue, 07 Apr 2026 14:00:35 GMT
- • etag: W/"69bae4eb-3eda"
- • expires: Tue, 07 Apr 2026 14:10:35 GMT
- • last-modified: Wed, 18 Mar 2026 17:46:19 GMT
- • server: GitHub.com
- • vary: Accept-Encoding
- • via: 1.1 varnish
- • x-cache: MISS
- • x-cache-hits: 0
- • x-fastly-request-id: 45e83905c207d6ba940913f35b7e8d8521086861
- • x-github-request-id: CA96:3C5DBF:182131:1A0CAB:69D50E03
- • x-proxy-cache: MISS
- • x-served-by: cache-ewr-kewr1740027-EWR
- • x-timer: S1775570435.118959,VS0,VE18
Fix: Add the missing security headers at your reverse proxy or application layer.
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CSP Quality Warning
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.
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Cookie Security Pass
No first-party cookies were set during the initial page load.
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Server response headers do not expose version tokens.
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Cloudflare Proxy Warning
Domain does not appear to be behind Cloudflare.
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Perceived Load Time Pass
Loaded in 0.36s (perceived).
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Render Blocking Resources Warning
0 scripts and 1 styles may block rendering.
- • style: https://www.yildiz-tn.de/css/main.css
Fix: Defer non-critical scripts and inline critical CSS to improve first paint speed.
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Compression Pass
Text-like assets appear compressed.
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Robots.txt Pass
Found robots.txt (200).
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Sitemap File Pass
Found sitemap (200) at https://www.yildiz-tn.de/sitemap.xml.
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Crawl Directives Pass
Robots meta found: index,follow,max-image-preview:large
Accessibility Basics
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Form Labels Pass
All 2 controls are labeled.
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Landmarks Pass
Header, nav, main, and footer landmarks are present.
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Tap Target Size Warning
18 interactive elements appear smaller than 48px.
- • a.is-current (Start) - 54x40px
- • a (Leistungen) - 107x40px
- • a (Projekte) - 89x40px
- • a (Über uns) - 86x40px
- • a (Kontakt) - 79x40px
- • a (Start) - 230x22px
- • a (Leistungen) - 230x22px
- • a (Projekte) - 230x22px
- • a (Kontakt) - 230x22px
- • a (+49 177 670 1414) - 230x22px
- • a ([email protected]) - 230x22px
- • a (Impressum) - 255x22px
- • a (Datenschutz) - 255x22px
- • button.consent-link.footer-consent (Datenschutzeinstellungen) - 165x22px
- • button#consentAcceptAll.btn.btn-primary (Alle akzeptieren) - 108x26px
- • button#consentRejectAll.btn.btn-ghost (Alle ablehnen) - 95x26px
- • button#consentOpenSettings.btn.btn-ghost (Optionen) - 70x26px
- • button#consentSaveSettings.btn.btn-primary (Speichern) - 94x29px
Fix: Increase target size to at least 48x48 CSS pixels for touch interactions.
Social & Rich Results
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Open Graph Basics Pass
Core Open Graph tags are present.
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Twitter Card Pass
twitter:card set to summary_large_image.
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Structured Data Pass
JSON-LD schema detected.
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PWA Metadata Warning
Manifest or Apple touch icon is missing.
Fix: Link your web app manifest and apple-touch-icon for improved install/share experiences.
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Open Graph/Twitter Quality Warning
1 social preview quality issues detected.
- • ISSUE: Preview image aspect ratio (1.48) differs from the recommended ~1.91:1.
- • 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: 0.48 MB
- • MEASURED: Image dimensions: 1920x1300
Fix: Use absolute OG/Twitter URLs, keep metadata lengths in recommended ranges, and provide a preview image near 1200x630 under 5MB.
Links Analysis
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Internal Links Pass
Checked 9 links. No broken internal links found.
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External Links Pass
No broken external links found in checked URLs.
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Link Format Pass
All 24 links use non-empty href values.
Performance & Runtime
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Core Web Vitals: LCP Pass
Largest Contentful Paint: 0.47s.
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Core Web Vitals: CLS Pass
Cumulative Layout Shift: 0.001.
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Total Blocking Time estimate: 0ms.
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Broken Assets Pass
No failed CSS/JS/image/font/media requests detected.
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No console/page runtime errors detected during audit.