Website readiness profile · Snapshot 23 October 2026
tjoy.jp
tjoy.jp's public homepage, certificate and DNS checked against 31 practices and compared with 387 Events & Online Ticketing sites.
- Readiness index
- 33/100
- Ahead of
- 1.3%
- Practices observed
- 7/29
- Popularity band
- Top 10K
Events & Online Ticketing median 63
of measured Events & Online Ticketing sites
2 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: tjoy.jp. Thin bar: Events & Online Ticketing peer median.
Enable
33/100
Peers 78
Harden
38/100
Peers 57
Accelerate
23/100
Peers 59
Recover
0/100
Peers 7
Priority fixes for tjoy.jp
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
HTML compressed
Observed: The homepage HTML (22 KB) was delivered without gzip, Brotli or zstd compression.
Why it matters: Compression usually shrinks HTML several times over, so the first bytes of the page arrive sooner on slow connections.
What to do: Enable Brotli or gzip for text responses (HTML, CSS, JavaScript, JSON, SVG) at the CDN or origin.
On Amazon CloudFront: Enable Compress objects automatically on the cache behaviour.
89% of Events & Online Ticketing peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.
Guide: How to Set a Website Performance Budget That Teams Can Keep
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.
87% of Events & Online Ticketing peers do this.
Guide: Robots.txt Guide: Control Crawling Without Hiding Mistakes
Priority 3 · Harden
HSTS kept for at least a year
Observed: The homepage response did not include a Strict-Transport-Security header.
What to do: Send Strict-Transport-Security on HTTPS responses. Start with a short max-age (for example 300 seconds), confirm every subdomain works over HTTPS, then raise it in steps to 31536000. Add includeSubDomains only when all subdomains are HTTPS. HSTS preload is optional and hard to undo; hstspreload.org itself does not recommend it by default.
On Amazon CloudFront: Attach a response headers policy with Strict-Transport-Security to each distribution.
42% of Events & Online Ticketing peers do this.
Priority 4 · 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.
64% of Events & Online Ticketing peers do this.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
What we saw
- Homepage checked
- https://tjoy.jp/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Amazon, 393-day validity, expiring 2026-12-31
- CDN or edge
- Amazon CloudFront
- DNS operators
- Amazon Route 53
- Homepage HTML
- 22 KB, uncompressed
- Images on homepage
- 1 (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 22
- HSTS kept for at least a year
- 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/3 advertised
- HTML compressed
- Static files cached for 30 days or more
- No render-blocking scripts in <head>
- robots.txt published
- XML sitemap discoverable
- Reachable over IPv6
- Canonical URL declared
- Meta description written
- Structured data present
- Social preview image set
- Nameservers spread across providers
Observed 7
- HTTP requests move to HTTPS
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- HTTP/2 negotiated
- Mobile viewport configured
- Page language declared
- At most one redirect to the homepage
Not measured 2
- Modern image formats in use
- Offscreen images lazy-loaded
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Live status for this site: Status Is Down: tjoy.jp. This profile covers configuration only.