harald-nyborg.dk

Readiness by lane

Green: harald-nyborg.dk. Thin bar: E-Commerce & Marketplaces peer median.

Priority fixes for harald-nyborg.dk

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 · Harden

   TLS 1.3 negotiated

   Observed: The TLS connection negotiated TLSv1.2.

   What to do: Enable TLS 1.3 on your CDN or server. Keep TLS 1.2 available for older clients unless you have checked your audience.

   93% of E-Commerce & Marketplaces peers do this.

   Guide: HTTPS and TLS Guide for Website Owners

3. Priority 3 · Accelerate

   No render-blocking scripts in <head>

   Observed: The homepage <head> loaded 1 external script 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

4. Priority 4 · 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

What harald-nyborg.dk already does well

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

• DNSSEC signedDNSSEC delegation (DS record) present.7.7% of peers
• HSTS kept for at least a yearHSTS with a 730-day max-age covering subdomains.32% of peers
• DMARC policy enforces quarantine or rejectDMARC policy p=reject.39% of peers

What we saw

Homepage checked

https://www.harald-nyborg.dk/

Homepage response

HTTP 200

TLS

TLSv1.2, http/1.1

Certificate

GlobalSign, 396-day validity, expiring 2026-12-15

DNS operators

1 self-run or other nameserver domain

HSTS

max-age 730 days, includeSubDomains, preload

DMARC policy

p=reject

Homepage HTML

1,356 KB, br

Images on homepage

51 (webp 128)

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

• gsstore.org71
• gumtree.com71
• happywall.com71
• hobbs.com71
• homzmart.com71

E-Commerce & Marketplaces readiness benchmark