Website readiness profile · Snapshot 23 October 2026
ecnavi.jp
ecnavi.jp's public homepage, certificate and DNS checked against 31 practices and compared with 5,718 E-Commerce & Marketplaces sites.
- Readiness index
- 55/100
- Ahead of
- 11%
- Practices observed
- 14/30
- Popularity band
- Top 1K
E-Commerce & Marketplaces median 71
of measured E-Commerce & Marketplaces sites
1 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: ecnavi.jp. Thin bar: E-Commerce & Marketplaces peer median.
Enable
68/100
Peers 86
Harden
49/100
Peers 60
Accelerate
58/100
Peers 69
Recover
0/100
Peers 11
Priority fixes for ecnavi.jp
Ordered by impact and by how common each practice is among peers.
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.
On Amazon CloudFront: Choose HTTP/2 (or HTTP/2 and HTTP/3) as supported versions on the distribution.
94% 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
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 3 · Accelerate
Modern image formats in use
Observed: The homepage had 95 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.
On Next.js: The next/image component serves optimized formats automatically.
47% of E-Commerce & Marketplaces peers do this.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format
Priority 4 · Enable
Canonical URL declared
Observed: The homepage did not declare a canonical URL.
What to do: Add a self-referencing canonical link to every indexable page, using the final https:// URL.
85% of E-Commerce & Marketplaces peers do this.
What ecnavi.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
- No render-blocking scripts in <head>Head scripts load without blocking.44% of peers
What we saw
- Homepage checked
- https://ecnavi.jp/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3
- Certificate
- Amazon, 197-day validity, expiring 2027-03-31
- CDN or edge
- Amazon CloudFront
- Platform or framework
- Next.js
- DNS operators
- Amazon Route 53
- HSTS
- max-age 365 days
- DMARC policy
- p=none
- Homepage HTML
- 998 KB, gzip
- Images on homepage
- 95 (png 33, jpg 17, svg 6, gif 5)
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 16
- 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
- Framing restricted
- Content Security Policy present
- Referrer-Policy set
- HTTP/2 negotiated
- HTTP/3 advertised
- Modern image formats in use
- XML sitemap discoverable
- Reachable over IPv6
- Canonical URL declared
- Nameservers spread across providers
Observed 14
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- HTML compressed
- Static files cached for 30 days or more
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- Meta description written
- Mobile viewport configured
- Structured data present
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Not measured 1
- robots.txt published
Own ecnavi.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: ecnavi.jp. This profile covers configuration only.