infomart.co.jp

Readiness by lane

Green: infomart.co.jp. Thin bar: Business Tools peer median.

Priority fixes for infomart.co.jp

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.

   82% of Business Tools 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

   DMARC policy enforces quarantine or reject

   Observed: The DMARC policy for infomart.co.jp 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.

   50% of Business Tools peers do this.

   Guide: A Practical Website Health Check for Owners

3. Priority 3 · Accelerate

   Static files cached for 30 days or more

   Observed: A same-site stylesheet or script was cacheable for no max-age, short of the 30-day benchmark.

   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.

   42% of Business Tools peers do this.

   Guide: Browser Caching Guide for Website Owners

4. Priority 4 · Accelerate

   Modern image formats in use

   Observed: The homepage had 195 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.

   42% of Business Tools peers do this.

   Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format

What infomart.co.jp already does well

Practices fewer than half of Business Tools peers use.

• HSTS kept for at least a yearHSTS with a 365-day max-age.45% of peers
• No render-blocking scripts in <head>Head scripts load without blocking.46% of peers

What we saw

Homepage checked

https://www.infomart.co.jp/

Homepage response

HTTP 200, after 1 redirect

TLS

TLSv1.3, http/1.1

Certificate

DigiCert, 198-day validity, expiring 2027-02-19

CDN or edge

Akamai

DNS operators

Akamai Edge DNS

HSTS

max-age 365 days, preload

DMARC policy

p=none

Homepage HTML

80 KB, gzip

Images on homepage

195 (svg 145, png 32, jpg 23)

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 Business Tools sites

• iplusonego.com53
• quickscores.com55
• revolutionehr.com55
• socialearning.org55
• sonetas.eu54

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