gebrauchtwagen.at

Readiness by lane

Green: gebrauchtwagen.at. Thin bar: Cars & Automotive peer median.

Priority fixes for gebrauchtwagen.at

Ordered by impact and by how common each practice is among peers.

1. Priority 1 · Harden

   HSTS kept for at least a year

   Observed: Strict-Transport-Security was sent with a max-age of 180 days, below the one-year benchmark.

   Why it matters: HSTS tells browsers to use HTTPS for your host on every later visit, which removes the window where a first HTTP request can be intercepted.

   What to do: Send Strict-Transport-Security on HTTPS responses. Start with a short max-age (for example 300 seconds), confirm every subdomain works over HTTPS, then raise it in steps to 31536000. Add includeSubDomains only when all subdomains are HTTPS. HSTS preload is optional and hard to undo; hstspreload.org itself does not recommend it by default.

   On Amazon CloudFront: Attach a response headers policy with Strict-Transport-Security to each distribution.

   41% of Cars & Automotive peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.

   Guide: HTTPS and TLS Guide for Website Owners

2. Priority 2 · Accelerate

   Static files cached for 30 days or more

   Observed: A same-site stylesheet or script was cacheable for 0 seconds, short of the 30-day benchmark.

   What to do: Give versioned (fingerprinted) CSS, JavaScript, fonts and images Cache-Control: public, max-age=31536000, immutable, and change the file name whenever the content changes.

   55% of Cars & Automotive peers do this.

   Guide: Browser Caching Guide for Website Owners

3. Priority 3 · Harden

   DMARC policy enforces quarantine or reject

   Observed: No DMARC record was found at _dmarc.gebrauchtwagen.at.

   What to do: Publish DMARC with p=none and a reporting address first, fix any legitimate senders that fail SPF or DKIM alignment, then move to quarantine and finally reject.

   41% of Cars & Automotive peers do this.

   Guide: A Practical Website Health Check for Owners

4. Priority 4 · Enable

   Structured data present

   Observed: The homepage had no JSON-LD structured data.

   What to do: Add JSON-LD for your organization and main content types, then test it with Google's Rich Results Test.

   63% of Cars & Automotive peers do this.

   Guide: Structured Data Basics for Website Owners

What gebrauchtwagen.at already does well

Practices fewer than half of Cars & Automotive peers use.

• No render-blocking scripts in <head>Head scripts load without blocking.45% of peers
• Modern image formats in useWebP or AVIF images detected.47% of peers

What we saw

Homepage checked

https://www.gebrauchtwagen.at/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

Amazon, 394-day validity, expiring 2027-01-10

CDN or edge

Amazon CloudFront

DNS operators

Amazon Route 53

HSTS

max-age 180 days

Homepage HTML

979 KB, gzip

Images on homepage

37 (webp 46, png 45, jpg 43, svg 10)

Limits: homepage only, one location, one moment. Header checks reflect the homepage response; other pages may differ.

Stack and providers

Seen in the homepage response, certificate and DNS. Provider pages compare how their customers configure the same checks.

All 31 checks

Select a gap for the method and fix. How each check works

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Cars & Automotive readiness benchmark