hmv.co.jp

Readiness by lane

Green: hmv.co.jp. Thin bar: E-Commerce & Marketplaces peer median.

Priority fixes for hmv.co.jp

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

1. Priority 1 · Enable

   Mobile viewport configured

   Observed: The homepage had no viewport meta tag, so phones may render it zoomed out.

   Why it matters: Without it, phones render the page at desktop width and shrink it, which makes text tiny and hard to use.

   What to do: Add <meta name="viewport" content="width=device-width, initial-scale=1"> and check the layout on small screens.

   98% 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: Responsive Web Design Checklist for Real Devices

2. Priority 2 · Accelerate

   HTTP/2 negotiated

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

   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.

   Guide: CDN Guide for Website Owners

3. Priority 3 · 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

4. Priority 4 · Accelerate

   Modern image formats in use

   Observed: The homepage had 229 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

What hmv.co.jp 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

What we saw

Homepage checked

https://www.hmv.co.jp/

Homepage response

HTTP 200

TLS

TLSv1.2

Certificate

SECOM Trust Systems CO.,LTD., 379-day validity, expiring 2026-12-31

DNS operators

2 self-run or other nameserver domains

DMARC policy

p=none

Homepage HTML

346 KB, gzip

Images on homepage

229 (gif 197, jpg 22, png 20)

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

Compare with other E-Commerce & Marketplaces sites

• circulaires.com29
• e-kurashi.coop29
• patagonia.jp31
• tirerack.com31
• tkmaxx.com31

E-Commerce & Marketplaces readiness benchmark