zoll-auktion.de

Readiness by lane

Green: zoll-auktion.de. Thin bar: E-Commerce & Marketplaces peer median.

Priority fixes for zoll-auktion.de

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

1. Priority 1 · Accelerate

   HTTP/2 negotiated

   Observed: The TLS handshake selected http/1.1 instead of HTTP/2.

   Why it matters: HTTP/2 sends many files over one connection, which speeds up pages with lots of images, styles and scripts.

   What to do: Enable HTTP/2 on your CDN or server. Most CDNs do this by default.

   94% of E-Commerce & Marketplaces peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.

   Guide: CDN Guide for Website Owners

2. Priority 2 · Accelerate

   Modern image formats in use

   Observed: The homepage had 1887 images and none used WebP or AVIF.

   What to do: Serve WebP or AVIF with a JPEG or PNG fallback, either through an image CDN or by generating both formats at build time.

   47% of E-Commerce & Marketplaces peers do this.

   Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format

3. Priority 3 · Accelerate

   Offscreen images lazy-loaded

   Observed: The homepage had 1887 images and none used loading="lazy".

   What to do: Add loading="lazy" to images below the fold. Do not lazy-load the main hero image, because that delays the largest visible element.

   72% of E-Commerce & Marketplaces peers do this.

   Guide: Lazy Loading Without Broken Pages

4. Priority 4 · Accelerate

   No render-blocking scripts in <head>

   Observed: The homepage <head> loaded 5 external scripts without async or defer.

   What to do: Add defer to scripts that need the DOM, async to independent ones such as analytics, or move them to the end of the body.

   44% of E-Commerce & Marketplaces peers do this.

   Guide: Control Third-Party Scripts Before They Control Your Page

What zoll-auktion.de already does well

Practices fewer than half of E-Commerce & Marketplaces peers use.

• DNSSEC signedDNSSEC delegation (DS record) present.7.7% of peers
• Nameservers spread across providersNameservers spread across more than one operator.11% of peers
• HSTS kept for at least a yearHSTS with a 365-day max-age covering subdomains.32% of peers

What we saw

Homepage checked

https://www.zoll-auktion.de/

Homepage response

HTTP 200, after 1 redirect

TLS

TLSv1.3, http/1.1

Certificate

D-Trust GmbH, 197-day validity, expiring 2027-04-08

DNS operators

3 self-run or other nameserver domains

HSTS

max-age 365 days, includeSubDomains, preload

DMARC policy

p=quarantine

Homepage HTML

2,569 KB, gzip

Images on homepage

1,887 (gif 1873, jpg 12, svg 2)

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

All 31 checks

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

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E-Commerce & Marketplaces readiness benchmark