kinguin.net

Readiness by lane

Green: kinguin.net. Thin bar: E-Commerce & Marketplaces peer median.

Priority fixes for kinguin.net

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

1. Priority 1 · Accelerate

   Static files cached for 30 days or more

   Observed: A same-site stylesheet or script was cacheable for 1 hours, short of the 30-day benchmark.

   Why it matters: Returning visitors and later page views reuse cached files instead of downloading them again.

   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.

   60% of E-Commerce & Marketplaces peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.

   Guide: Browser Caching Guide for Website Owners

2. Priority 2 · Accelerate

   Modern image formats in use

   Observed: The homepage had 16 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 16 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 · Harden

   Content Security Policy present

   Observed: The homepage response did not include a Content-Security-Policy header.

   What to do: Start with Content-Security-Policy-Report-Only to see what would break, tighten the policy over a few weeks, then enforce it.

   48% of E-Commerce & Marketplaces peers do this.

   Guide: Payment Security and PCI DSS: What Website Owners Need to Know

What kinguin.net 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
• CAA records limit who can issue certificatesCAA limits issuance to digicert.com, globalsign.com, letsencrypt.org and others.16% of peers
• Referrer-Policy setReferrer-Policy present.20% of peers

What we saw

Homepage checked

https://www.kinguin.net/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

DigiCert, 198-day validity, expiring 2027-03-26

CDN or edge

Akamai

DNS operators

1 self-run or other nameserver domain

HSTS

max-age 365 days, includeSubDomains, preload

DMARC policy

p=quarantine

Homepage HTML

1,307 KB, gzip

Images on homepage

16 (png 11, jpg 4, 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

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E-Commerce & Marketplaces readiness benchmark