What powers 
catsj.jp?
Last seen Aug 2026 · 19 technologies across 13 categories
Advertising
Analytics
CDN
CMS
Databases
Font scripts
Hosting
JavaScript libraries
Miscellaneous
Programming languages
Security
Web servers
Widgets
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
- Sep 2026 * removed from robots.txt
- Aug 2026 robots.txt removed
- Aug 2026 robots.txt appeared
- Aug 2026 * added to robots.txt
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| tocat | #2 | 32 |
| yota murakami | #71 | 0 |
| icnc 2024 | #80 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 80% desktop
- 20% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.08 / 10 · ranked #239,444 of all domains
78 referring domains · OpenPageRank
Search traffic
32 est. monthly organic visits (US)
3 keywords in Google's top 30
Core Web Vitals
| LCP | 0.8 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 1.1 MB · 46 requests
- WordPress theme: catsj_2404 · all themes
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- 触媒学会
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Sakura Internet (153.127.24.161)
- DNS: Sakura Internet
- Email: Sakura Internet
- Email security: SPF (soft fail), DMARC monitor only
- SSL: JPRS, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 196,750, 6 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| catsj.jp | 14 |
| tocat.catsj.jp | 11 |
| jrc.catsj.jp | 2 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025
- dropped RSS Nov 2025