What powers zen-na.jp?
Last seen Aug 2026 · 26 technologies across 13 categories
Advertising
Affiliate programs
Moshimo
since Sep 2022
Analytics
Cloudflare Browser Insights
since Nov 2025
Google Ads Conversion Tracking
since Jul 2021
Google Analytics
since Jul 2020
Microsoft Clarity
since May 2021
CDN
Cloudflare
since Jan 2021
jQuery CDN
since Feb 2022
Font scripts
Font Awesome
since Aug 2020
Google Font API
since Jul 2020
JavaScript frameworks
JavaScript libraries
Miscellaneous
Payment processors
Programming languages
Node.js
since Jan 2021
Tag managers
Google Tag Manager
since Jul 2020
Video players
YouTube
since Aug 2020
Webmail
Google Workspace
since Aug 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.56 / 10 · ranked #2,395,344 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.8 s |
| INP | 175 ms |
| CLS | 0.35 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Cloudflare
- Weight: 19.6 MB · 200 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Cloudflare (104.21.62.14, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 37,868,527, 2 hosts
- Verified with: Google, Meta Business
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Cloudflare Browser Insights Nov 2025
- dropped Heroku Nov 2025