What powers watson.co.jp?
Last seen Aug 2026 · 26 technologies across 17 categories
Analytics
Google Analytics
since Jan 2019
Microsoft Clarity
since Jul 2025
Authentication
Facebook Login
since Jul 2021
CDN
CMS
Databases
MySQL
since Apr 2023
Ecommerce
Cart Functionality
since Nov 2021
Font scripts
Google Font API
since May 2024
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Apr 2023
Programming languages
SEO
Video players
YouTube
since Mar 2019
Web servers
Apache HTTP Server
since Jan 2019
Webmail
Microsoft 365
since May 2024
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 85% desktop
- 15% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.21 / 10 · ranked #1,253,573 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 7.5 MB · 91 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on ASJ ASJ INC. (219.118.192.51)
- DNS: admiral.ne.jp
- Email: no MX record returned
- SSL: JPRS, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 1,241,731, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.watson.co.jp | 18 |
| watson.co.jp | 15 |