What powers 
yamadazaidan.jp?
Last seen Oct 2026 · 25 technologies across 16 categories
Analytics
Google Analytics
since Jul 2022
CDN
cdnjs
since Jul 2022
Cloudflare
since Jul 2022
Google Hosted Libraries
since Jul 2022
jQuery CDN
since Jul 2022
CMS
Databases
MySQL
since Jul 2022
Font scripts
Google Font API
since Jul 2022
Twitter Emoji (Twemoji)
since Jul 2022
JavaScript libraries
Miscellaneous
RSS
since Dec 2022
PaaS
Amazon Web Services
since Aug 2022
Page builders
WordPress Block Editor
since Nov 2024
Performance
Priority Hints
since Nov 2023
Programming languages
PHP
since Jul 2022
UI frameworks
Animate.css
since Jul 2022
Video players
YouTube
since Jul 2022
Web servers
Apache HTTP Server
since Jul 2022
WordPress plugins
Autoptimize
since Nov 2024
Contact Form 7
since Nov 2023
WordPress themes
Lightning
since Jul 2022
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 Nov 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 90% desktop
- 10% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.26 / 10 · ranked #441,873 of all domains
50 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 4.5 MB · 134 requests
- WordPress theme: lightning (child: lightning_child_yamada) · all themes
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Yamada Science Foundation
- Founded: 1977
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on IDCF IDC Frontier Inc. (164.46.110.182)
- DNS: Amazon Route 53
- Email: yamadazaidan.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: DigiCert, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 1,263,395, 6 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted