jysk.ca

Readiness by lane

Green: jysk.ca. Thin bar: E-Commerce & Marketplaces peer median.

Priority fixes for jysk.ca

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 45 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 · Harden

   DMARC policy enforces quarantine or reject

   Observed: The DMARC policy for jysk.ca was p=none, which asks receivers to take no action on failing mail.

   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.

   39% of E-Commerce & Marketplaces peers do this.

   Guide: A Practical Website Health Check for Owners

3. Priority 3 · Accelerate

   No render-blocking scripts in <head>

   Observed: The homepage <head> loaded 8 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

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 jysk.ca already does well

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

• 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
• Reachable over IPv6IPv6 address published.40% of peers

What we saw

Homepage checked

https://www.jysk.ca/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

Let's Encrypt, 89-day validity, expiring 2026-12-24

Platform or framework

Magento / Adobe Commerce

DNS operators

3 self-run or other nameserver domains

HSTS

max-age 365 days, includeSubDomains

DMARC policy

p=none

Homepage HTML

510 KB, br

Images on homepage

45 (jpg 26, png 19)

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

• jbl.com.co75
• josalukkasonline.com75
• joueclub.fr75
• kabanchik.ua75
• kuradashi.jp75

E-Commerce & Marketplaces readiness benchmark