What powers 
nittoseiko.co.jp?
Last seen Oct 2026 · 21 technologies across 12 categories
Analytics
CDN
CMS
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Security
Tag managers
Web servers
AI Crawlers
Restricts 4 of 33 AI crawlers we track by name in its robots.txt. Checked Nov 2026.
Training crawlers
- ClaudeBot Restricted
- GPTBot Restricted
Search and AI assistants
- PerplexityBot Restricted
User-request fetchers
- ChatGPT-User Restricted
The other 29 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 chatgpt-user added to robots.txt
- Sep 2026 claudebot added to robots.txt
- Sep 2026 gptbot added to robots.txt
- Sep 2026 perplexitybot added to robots.txt
AI Crawlers
4 of 33 AI crawlers restricted
Audience
- 85% desktop
- 15% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #360,708 of all domains
70 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- CDN: Amazon CloudFront
- Weight: 4.1 MB · 101 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Nitto Seiko
- Founded: 1938
- Country: Japan
From Wikidata (CC0).
Infrastructure
- DNS: Xserver
- Email: nittoseiko.co.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Amazon Trust Services, RSA 2048, wildcard, expires Feb 2027
- Common Crawl link graph: rank 9,388,173, 5 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| m.nittoseiko.co.jp | 13 |
| lp.nittoseiko.co.jp | 12 |
| www.nittoseiko.co.jp | 10 |
Full technology history →
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Recent changes
- dropped Nginx Oct 2026
- detected Microsoft Clarity Sep 2026