What powers en21.co.jp?
Last seen Aug 2026 · 1 technologies across 1 categories
Web servers
Apache HTTP Server
since Apr 2019
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 87% phone
- 13% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.08 / 10 · ranked #517,771 of all domains
34 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| INP | 275 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 0.0 MB · 15 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on ASJ ASJ INC. (219.118.222.233)
- Email: asj-hosting.net
- Email security: SPF (soft fail), no DMARC record
- Common Crawl link graph: rank 651,896, 2 hosts
DNS records as swept Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| en21.co.jp | 1 |
| www.en21.co.jp | 1 |
Full technology history →
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Recent changes
- dropped Cloudflare Jul 2026
- dropped Cloudflare Bot Management Jul 2026
- dropped Twitter Jul 2026
- dropped Twitter Ads Jul 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025