What powers joshrc.net?
Last seen Sep 2026 · 31 technologies across 20 categories
Advertising
Analytics
CDN
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
Page builders
Performance
Programming languages
Security
UI frameworks
Video players
Web servers
Widgets
WordPress plugins
WordPress themes
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 56% phone
- 44% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.22 / 10 · ranked #3,050,145 of all domains
30 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 3.9 MB · 128 requests
- WordPress theme: lightning · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- 全国労働安全衛生センター連絡会議
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Sakura Internet (153.127.23.253)
- Email: joshrc.net
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 1,305,057
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Jetpack Sep 2026
- detected Twitter Emoji (Twemoji) Aug 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- detected Jetpack Mar 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025