What powers west1.jp?
Last seen Oct 2026 · 11 technologies across 9 categories
CDN
Google Cloud CDN
since Aug 2025
Databases
Firebase
since Aug 2025
Font scripts
Google Font API
since Aug 2022
IaaS
Google Cloud
since Aug 2025
JavaScript frameworks
Miscellaneous
HTTP/3
since Aug 2025
Open Graph
since Nov 2022
Page builders
STUDIO
since Aug 2025
Programming languages
Node.js
since Aug 2025
Tag managers
Google Tag Manager
since Aug 2025
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.23 / 10 · ranked #9,504,913 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.1 s |
| CLS | 0.75 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 5.8 MB · 102 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Google Cloud (34.111.141.225)
- DNS: xdomain.ne.jp
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 29,824,613
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Google Cloud Trace Aug 2026
- detected Google Cloud Trace Jun 2026
- dropped Priority Hints May 2026
- dropped core-js Apr 2026