What powers j-nbooks.jp?
Last seen Jun 2026 · 30 technologies across 17 categories
Advertising
Twitter Ads
since Nov 2021
Analytics
Google Analytics
since Aug 2018
Authentication
Facebook Login
since Jul 2021
NextAuth.js
since Jan 2026
CDN
Cookie compliance
Development
Turbopack
since Apr 2026
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Amazon Web Services
since Aug 2022
Performance
Priority Hints
since Jan 2026
Programming languages
RUM
Datadog
since Jan 2026
Security
Cloudflare Bot Management
since Mar 2025
Tag managers
Google Tag Manager
since Nov 2024
Video players
YouTube
since May 2025
Web servers
Audience
- 69% phone
- 25% desktop
- 6% tablet
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.25 / 10 · ranked #443,802 of all domains
67 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 125 ms |
| CLS | 0.2 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 4.8 MB · 70 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| comic.j-nbooks.jp | 19 |
| j-nbooks.jp | 14 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Axios Jun 2026
- detected LazySizes Jun 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- detected Turbopack Apr 2026
- dropped Stripe Mar 2026
- dropped Bootstrap Feb 2026
- dropped Google Font API Feb 2026
- dropped Google Hosted Libraries Feb 2026
- dropped jQuery UI Feb 2026
- dropped LazySizes Feb 2026
- detected Datadog Jan 2026
- detected NextAuth.js Jan 2026
- detected Next.js Jan 2026
- detected Next.js App Router Jan 2026
- detected Node.js Jan 2026
- detected Priority Hints Jan 2026
- detected React Jan 2026
- detected Stripe Jan 2026
- detected Webpack Jan 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025
- dropped Twitter Oct 2025