What powers 
cofo.jp?
Last seen Oct 2026 · 58 technologies across 24 categories
Advertising
Analytics
Augmented reality
CDN
Ecommerce
Font scripts
Hosting
Issue trackers
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Marketing automation
Miscellaneous
PaaS
Payment processors
Performance
Photo galleries
Programming languages
Security
Tag managers
UI frameworks
Web frameworks
Web servers
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 Nov 2026. A recent check saw a policy file missing; awaiting confirmation.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Oct 2026 llms.txt removed
- Oct 2026 llms-full.txt removed
AI Crawlers
No AI crawlers blocked
Audience
- 64% desktop
- 36% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.95 / 10 · ranked #611,813 of all domains
47 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Cloudflare
- Weight: 19.8 MB · 565 requests
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (23.227.38.32)
- DNS: Cloudflare DNS
- Email: onamae.ne.jp
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 2,404,012, 5 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| cofo.jp | 32 |
| monitorarm-pro.cofo.jp | 24 |
| chair-premium2.cofo.jp | 22 |
| chair-pro2.cofo.jp | 22 |
| monitorarm-pro-vertical.cofo.jp | 22 |
| lbb.cofo.jp | 21 |
| gadget-pouch.cofo.jp | 16 |
| account.cofo.jp | 11 |
| configure.cofo.jp | 11 |
| jsf.cofo.jp | 8 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Amazon S3 Sep 2026
- detected Amazon Web Services Sep 2026
- detected Svelte Aug 2026
- dropped Google Sign-in Apr 2026
- dropped Growave Apr 2026