What powers 
willof-construction.co.jp?
Last seen Sep 2026 · 32 technologies across 18 categories
Advertising
Analytics
CDN
CMS
Cookie compliance
Databases
Font scripts
JavaScript libraries
Marketing automation
Miscellaneous
Performance
Programming languages
SEO
Tag managers
UI frameworks
Video players
Web servers
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Oct 2026 llms.txt removed
- Aug 2026 llms.txt appeared
AI Crawlers
No AI crawlers blocked
Audience
- 64% desktop
- 36% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.49 / 10 · ranked #908,120 of all domains
35 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 48.5 MB · 147 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- WILLOF CONSTRUCTION
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Amazon Web Services (52.193.157.12)
- DNS: ucom.ne.jp
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 9,697,603, 3 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| start.willof-construction.co.jp | 29 |
| willof-construction.co.jp | 18 |
Full technology history →
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Recent changes
- detected YouTube Apr 2026
- dropped Contact Form 7 Mar 2026
- dropped jQuery Migrate Mar 2026
- detected Matomo Analytics Feb 2026