What powers pubfun.jp?
Last seen Aug 2026 · 43 technologies across 21 categories
Advertising
Analytics
CDN
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
PaaS
Performance
Programming languages
Reverse proxies
Security
Tag managers
UI frameworks
Web frameworks
Web servers
Webmail
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 chatgpt-user removed from robots.txt
- Sep 2026 claudebot removed from robots.txt
- Sep 2026 google-extended removed from robots.txt
- Sep 2026 gptbot removed from robots.txt
- Sep 2026 oai-searchbot removed from robots.txt
- Sep 2026 perplexitybot removed from robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 84% desktop
- 16% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.34 / 10 · ranked #1,076,129 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 2.0 MB · 87 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on IDCF IDC Frontier Inc. (203.183.234.66)
- DNS: Amazon Route 53
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 3,708,587, 3 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| customer.pubfun.jp | 23 |
| pubfun.jp | 22 |
| self.pubfun.jp | 19 |
| system.pubfun.jp | 8 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped EWWW Image Optimizer Aug 2026
- dropped LazySizes Aug 2026
- detected Priority Hints Mar 2026
- detected CakePHP Nov 2025