What powers 
nasluck.co.jp?
Last seen Oct 2026 · 14 technologies across 9 categories
Advertising
Analytics
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Tag managers
Web servers
Webmail
AI Crawlers
Blocks 8 of 33 AI crawlers we track by name in its robots.txt. Checked Nov 2026.
Training crawlers
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
- Applebot Blocked
- Claude-SearchBot Blocked
- PetalBot Blocked
The other 25 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
- Oct 2026 *: Restricted (was Blocked)
- Oct 2026 petalbot added to robots.txt
- Oct 2026 meta-externalagent added to robots.txt
- Oct 2026 amazonbot added to robots.txt
- Oct 2026 ccbot added to robots.txt
- Oct 2026 claude-searchbot added to robots.txt
AI Crawlers
8 of 33 AI crawlers blocked
Audience
- 59% phone
- 41% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.28 / 10 · ranked #438,631 of all domains
54 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 38.7 MB · 143 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Nasluck
- Founded: 1978
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on UCOM ARTERIA Networks Corporation (221.248.96.228)
- DNS: token.co.jp
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 11,807,375
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.nasluck.co.jp | 13 |
| www.nasluck-salespa.nasluck.co.jp | 3 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Vue.js May 2026
- detected Google Font API Dec 2025
- detected Open Graph Dec 2025
- detected Slick Dec 2025