What powers strukt.jp?
Last seen Sep 2026 · 29 technologies across 17 categories
Analytics
CDN
CMS
Databases
Font scripts
JavaScript libraries
Marketing automation
Miscellaneous
Page builders
Performance
Programming languages
Security
Tag managers
UI frameworks
Web servers
Webmail
WordPress plugins
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
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 55% desktop
- 45% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.53 / 10 · ranked #6,281,593 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 6.7 MB · 124 requests
- WordPress theme: x-t9 (child: x-t9-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- 株式会社ストラクト
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Sakura Internet (49.212.180.229)
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only
- SSL: JPRS, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 26,808,135
- Verified with: Google, Microsoft 365
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
- dropped core-js Sep 2026
- detected reCAPTCHA Jun 2026
- detected jsDelivr Dec 2025
- detected Preact Dec 2025
- detected Twitter Emoji (Twemoji) Dec 2025
- dropped Google Font API Nov 2025
- detected jQuery Migrate Nov 2025
- dropped Lightning Nov 2025
- dropped WordPress Block Editor Nov 2025