What powers ygh.ed.jp?
Last seen Sep 2026 · 23 technologies across 11 categories
Advertising
Amazon Advertising
since Jun 2026
Criteo
since Jan 2025
Google Ads
since Jan 2025
Twitter Ads
since Jun 2025
Yahoo Advertising
since Jan 2025
Analytics
Google Ads Conversion Tracking
since Jan 2025
Google Analytics
since Jan 2025
Microsoft Clarity
since Jan 2025
TikTok Pixel
since Apr 2026
CDN
Ecommerce
Amazon Webstore
since Jun 2026
JavaScript libraries
Miscellaneous
Open Graph
since Jan 2025
Performance
Priority Hints
since Apr 2026
Security
Cloudflare Bot Management
since Jan 2025
Tag managers
Google Tag Manager
since Jan 2025
Web servers
Nginx
since Jan 2025
Webmail
Apple iCloud Mail
since Mar 2025
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 84% phone
- 14% desktop
- 2% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.55 / 10 · ranked #2,409,720 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 15.2 MB · 293 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- 学校法人四谷学院
- Industry: Education (declares
HighSchool)
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on BBTOWER BroadBand Tower, Inc. (203.216.221.84)
- DNS: kagoya.net
- Email: kagoya.net
- Email security: SPF (soft fail), no DMARC record
- SSL: Nijimo, Inc., RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 10,847,276, 2 hosts
- Verified with: Apple Business, Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| ygh.ed.jp | 23 |
| form.ygh.ed.jp | 2 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Amazon Advertising Jun 2026
- detected Amazon Webstore Jun 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025