8591.com.tw

Readiness by lane

Green: 8591.com.tw. Thin bar: E-Commerce & Marketplaces peer median.

Priority fixes for 8591.com.tw

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 37 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.

   On Nuxt: Nuxt Image can output WebP and AVIF.

   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: No DMARC record was found at _dmarc.8591.com.tw.

   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 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 · Enable

   Page language declared

   Observed: The homepage <html> element had no lang attribute.

   What to do: Set lang on the html element (for example lang="en") and on any sections in another language.

   96% of E-Commerce & Marketplaces peers do this.

   Guide: Website Accessibility Checklist for Owners

What 8591.com.tw already does well

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

• HSTS kept for at least a yearHSTS with a 365-day max-age covering subdomains.32% of peers
• HTTP/3 advertisedHTTP/3 advertised.47% of peers

What we saw

Homepage checked

https://www.8591.com.tw/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

Amazon, 197-day validity, expiring 2027-04-28

CDN or edge

Amazon CloudFront

Platform or framework

Nuxt

DNS operators

Amazon Route 53

HSTS

max-age 365 days, includeSubDomains

Homepage HTML

139 KB, gzip

Images on homepage

37 (png 30, jpg 5, gif 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

• 1stdibs.com67
• 21vek.by67
• amazon.ie67
• arogga.com67
• zoro.com68

E-Commerce & Marketplaces readiness benchmark