Website readiness profile · Snapshot 23 October 2026
sskamo.co.jp
sskamo.co.jp's public homepage, certificate and DNS checked against 31 practices and compared with 5,718 E-Commerce & Marketplaces sites.
- Readiness index
- 45/100
- Ahead of
- 3%
- Practices observed
- 12/31
- Popularity band
- Top 50K
E-Commerce & Marketplaces median 71
of measured E-Commerce & Marketplaces sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: sskamo.co.jp. Thin bar: E-Commerce & Marketplaces peer median.
Enable
59/100
Peers 86
Harden
42/100
Peers 60
Accelerate
38/100
Peers 69
Recover
0/100
Peers 11
Priority fixes for sskamo.co.jp
Ordered by impact and by how common each practice is among peers.
Priority 1 · Harden
Certificate has more than 14 days left
Observed: The certificate from GlobalSign nv-sa was due to expire on 2026-11-02 (9 days after the check).
Why it matters: An expired certificate makes browsers show a full-page warning. Renewing well ahead of expiry leaves time to fix a failed renewal.
What to do: Automate renewal with ACME (for example Let's Encrypt or your CDN's managed certificates) and add a renewal review to your release calendar so any certificate inside 21 days of expiry gets attention.
>99% of E-Commerce & Marketplaces peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.
Priority 2 · Enable
robots.txt published
Observed: No robots.txt file was returned at the site root.
What to do: Publish /robots.txt with any crawl rules you need and a Sitemap: line pointing to your XML sitemap.
95% of E-Commerce & Marketplaces peers do this.
Guide: Robots.txt Guide: Control Crawling Without Hiding Mistakes
Priority 3 · Enable
XML sitemap discoverable
Observed: No sitemap was listed in robots.txt or found at /sitemap.xml.
What to do: Generate an XML sitemap of canonical URLs, reference it in robots.txt and submit it in Google Search Console.
87% of E-Commerce & Marketplaces peers do this.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 4 · 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.
60% of E-Commerce & Marketplaces peers do this.
What sskamo.co.jp 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.32% of peers
What we saw
- Homepage checked
- https://www.sskamo.co.jp/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- GlobalSign, 396-day validity, expiring 2026-11-02
- CDN or edge
- Amazon CloudFront
- DNS operators
- Amazon Route 53
- HSTS
- max-age 365 days
- DMARC policy
- p=none
- Homepage HTML
- 109 KB, gzip
- Images on homepage
- 190 (gif 99, jpg 71, png 17)
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
Not observed 19
- Certificate has more than 14 days left
- Certificate lifetime of 100 days or less
- CAA records limit who can issue certificates
- DNSSEC signed
- security.txt published
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Content Security Policy present
- Referrer-Policy set
- HTTP/3 advertised
- Static files cached for 30 days or more
- Modern image formats in use
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- robots.txt published
- XML sitemap discoverable
- Reachable over IPv6
- Canonical URL declared
- Nameservers spread across providers
Observed 12
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Framing restricted
- HTTP/2 negotiated
- HTML compressed
- Meta description written
- Mobile viewport configured
- Structured data present
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Own sskamo.co.jp?
Re-run the checks after a change, or verify the site in a free workspace to save reports with history, compare against similar sites and competitors, and track a private action plan. What owners get.
Live status for this site: Status Is Down: sskamo.co.jp. This profile covers configuration only.