Website readiness profile · Snapshot 23 October 2026
youyoutime.jp
youyoutime.jp's public homepage, certificate and DNS checked against 31 practices and compared with 306 Online Publishing sites.
- Readiness index
- 74/100
- Ahead of
- 82%
- Practices observed
- 22/31
- Popularity band
- Top 50K
Online Publishing median 64
of measured Online Publishing sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: youyoutime.jp. Thin bar: Online Publishing peer median.
Enable
90/100
Peers 84
Harden
68/100
Peers 51
Accelerate
73/100
Peers 65
Recover
0/100
Peers 5
Priority fixes for youyoutime.jp
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
Static files cached for 30 days or more
Observed: A same-site stylesheet or script was cacheable for 7 days, short of the 30-day benchmark.
Why it matters: Returning visitors and later page views reuse cached files instead of downloading them again.
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.
On Cloudflare: Use Cache Rules to set edge and browser TTLs for static file paths.
57% of Online Publishing peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.
Priority 2 · 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.
80% of Online Publishing peers do this.
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.
45% of Online Publishing peers do this.
Guide: Control Third-Party Scripts Before They Control Your Page
Priority 4 · Harden
DMARC policy enforces quarantine or reject
Observed: No DMARC record was found at _dmarc.youyoutime.jp.
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.
20% of Online Publishing peers do this.
What youyoutime.jp already does well
Practices fewer than half of Online Publishing peers use.
- Referrer-Policy setReferrer-Policy present.20% of peers
- HSTS kept for at least a yearHSTS with a 365-day max-age covering subdomains.27% of peers
- Framing restrictedFraming controls present.37% of peers
What we saw
- Homepage checked
- https://youyoutime.jp/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Let's Encrypt, 89-day validity, expiring 2027-01-08
- CDN or edge
- Cloudflare
- DNS operators
- Cloudflare
- HSTS
- max-age 365 days, includeSubDomains, preload
- Homepage HTML
- 143 KB, br
- Images on homepage
- 96 (jpg 66, svg 28, webp 2, png 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
Not observed 9
Observed 22
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- Certificate lifetime of 100 days or less
- X-Content-Type-Options: nosniff
- Framing restricted
- Referrer-Policy set
- HTTP/2 negotiated
- HTTP/3 advertised
- HTML compressed
- Modern image formats in use
- Offscreen images lazy-loaded
- robots.txt published
- XML sitemap discoverable
- Reachable over IPv6
- Meta description written
- Mobile viewport configured
- Structured data present
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Own youyoutime.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: youyoutime.jp. This profile covers configuration only.