What powers 
irving.co.jp?
Last seen Sep 2026 · 27 technologies across 13 categories
Analytics
CDN
CMS
Databases
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Programming languages
Web servers
WordPress plugins
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 78% phone
- 20% desktop
- 2% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.24 / 10 · ranked #445,544 of all domains
76 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 4.5 MB · 150 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- 株式会社 アービング (Irving on Wikidata)
- Founded: 1997
- Sector: tertiary sector of the economy
- Country: Japan
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Sakura Internet (49.212.235.170)
- DNS: Sakura Internet
- Email: irving.co.jp
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 1,200,847, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| irving.co.jp | 21 |
| www.irving.co.jp | 18 |
Full technology history →
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Recent changes
- detected Priority Hints Sep 2026
- detected cdnjs Jul 2026
- detected Cloudflare Jul 2026
- detected Google Hosted Libraries Jul 2026
- detected GSAP Jul 2026
- detected jsDelivr Jul 2026
- detected Slick Jul 2026
- detected Twitter Emoji (Twemoji) Jul 2026
- detected Unpkg Jul 2026
- detected Twitter Emoji (Twemoji) Dec 2025