What powers narrow.jp?
Last seen Jun 2026 · 16 technologies across 11 categories
Advertising
Google AdSense
since Apr 2018
Twitter Ads
since Apr 2021
Analytics
Google Analytics
since Jun 2018
CDN
Cloudflare
since Sep 2024
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Performance
Priority Hints
since Mar 2026
Security
Cloudflare Bot Management
since Sep 2024
reCAPTCHA
since May 2022
Tag managers
Google Tag Manager
since Apr 2018
Web servers
Apache HTTP Server
since Apr 2018
Widgets
Audience
- 99% phone
- 1% tablet
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.02 / 10 · ranked #555,660 of all domains
50 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 19.0 MB · 122 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| sp.narrow.jp | 14 |
| pro.narrow.jp | 8 |
| pre.narrow.jp | 7 |
| narrow.jp | 6 |
| www.narrow.jp | 6 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Apr 2026
- detected Cloudflare Bot Management Apr 2026
- detected Priority Hints Mar 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025