breuninger.com

Readiness by lane

Green: breuninger.com. Thin bar: E-Commerce & Marketplaces peer median.

Priority fixes for breuninger.com

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

1. Priority 1 · Accelerate

   Modern image formats in use

   Observed: The homepage had 15 images and none used WebP or AVIF.

   Why it matters: WebP and AVIF are typically much smaller than JPEG or PNG at similar quality, and images are often the heaviest part of a page.

   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. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.

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

2. Priority 2 · Accelerate

   Offscreen images lazy-loaded

   Observed: The homepage had 15 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

3. Priority 3 · Accelerate

   HTTP/3 advertised

   Observed: The homepage did not advertise HTTP/3 through an Alt-Svc header.

   What to do: Turn on HTTP/3 at your CDN. Browsers fall back to HTTP/2 automatically, so the risk is low.

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

   Guide: CDN Guide for Website Owners

4. Priority 4 · Harden

   X-Content-Type-Options: nosniff

   Observed: The homepage response did not include X-Content-Type-Options: nosniff.

   What to do: Send X-Content-Type-Options: nosniff on all responses and make sure each file is served with the correct Content-Type.

   64% of E-Commerce & Marketplaces peers do this.

   Guide: A Practical Website Health Check for Owners

What breuninger.com already does well

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

• security.txt publishedsecurity.txt with a contact found.7.6% of peers
• HSTS kept for at least a yearHSTS with a 365-day max-age.32% of peers
• DMARC policy enforces quarantine or rejectDMARC policy p=reject.39% of peers

What we saw

Homepage checked

https://www.breuninger.com/

Homepage response

HTTP 200, after 1 redirect

TLS

TLSv1.3, HTTP/2

Certificate

Let's Encrypt, 89-day validity, expiring 2026-12-31

DNS operators

1 self-run or other nameserver domain

HSTS

max-age 365 days

DMARC policy

p=reject

Homepage HTML

671 KB, gzip

Images on homepage

15 (jpg 56, svg 1)

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

Compare with other E-Commerce & Marketplaces sites

• beminimalist.co76
• bewakoof.com76
• blivakker.no76
• briscoes.co.nz76
• calliope.style76

E-Commerce & Marketplaces readiness benchmark