What powers 
crossfields.jp?
Last seen Aug 2026 · 29 technologies across 17 categories
Analytics
CDN
CMS
Hosting
Issue trackers
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
Performance
Programming languages
Reverse proxies
Security
Tag managers
UI frameworks
Web servers
Webmail
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
- Aug 2026 llms.txt appeared
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 86% desktop
- 14% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.61 / 10 · ranked #385,832 of all domains
73 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Cloudflare
- Weight: 0.9 MB · 42 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- CROSS FIELDS
- Founded: 2011
- Country: Japan
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Sakura Internet (182.48.49.79)
- DNS: Sakura Internet
- Email: no MX record returned
- SSL: ZeroSSL, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 9,595,113, 4 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| note.crossfields.jp | 20 |
| crossfields.jp | 12 |
| hblp.crossfields.jp | 11 |
Full technology history →
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Recent changes
- dropped MySQL Jun 2026
- dropped PHP Jun 2026
- dropped WordPress Jun 2026
- detected Google Tag Manager Mar 2026
- dropped Svelte Jan 2026
- dropped Adobe Audience Manager Dec 2025
- dropped Facebook Login Dec 2025
- dropped Facebook Pixel Dec 2025
- dropped Google Hosted Libraries Dec 2025
- dropped Google Tag Manager Dec 2025
- dropped ID5 Dec 2025
- dropped Slick Dec 2025
- dropped Typekit Dec 2025
- detected Swiper Nov 2025
- dropped HubSpot Analytics Oct 2025