What powers vook.co.jp?
Last seen Jun 2026 · 21 technologies across 14 categories
Analytics
Google Analytics
since Jun 2026
CDN
cdnjs
since Jun 2026
Cloudflare
since Jun 2026
Google Hosted Libraries
since Jun 2026
jsDelivr
since Jun 2026
CMS
WordPress
since Jun 2026
Databases
MySQL
since Jun 2026
JavaScript frameworks
JavaScript libraries
Marketing automation
HubSpot
since Jun 2026
Miscellaneous
Open Graph
since Jun 2026
RSS
since Jun 2026
PaaS
Amazon Web Services
since Jun 2026
Performance
LazySizes
since Jun 2026
Programming languages
Web servers
Nginx
since Jun 2026
Webmail
Apple iCloud Mail
since Jun 2026
Google Workspace
since Jun 2026
WordPress plugins
EWWW Image Optimizer
since Jun 2026
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 not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.02 / 10 · ranked #553,407 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Infrastructure
- Hosted on Sakura Internet (219.94.162.27)
- DNS: Amazon Route 53
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 9,931,656, 2 hosts
- Verified with: Apple Business, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted