What powers backcheck.jp?
Last seen Jun 2026 · 30 technologies across 17 categories
Advertising
Google Ads
since Dec 2022
Microsoft Advertising
since Nov 2023
Twitter Ads
since May 2021
Yahoo Advertising
since Apr 2022
Analytics
Google Ads Conversion Tracking
since Jul 2021
Google Analytics
since May 2019
CDN
Cloudflare
since Oct 2022
Google Cloud CDN
since Apr 2023
Databases
Firebase
since Apr 2023
Font scripts
Google Font API
since Apr 2023
IaaS
Google Cloud
since Apr 2023
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
HTTP/3
since Apr 2023
Open Graph
since Apr 2023
PaaS
Amazon Web Services
since May 2019
Page builders
STUDIO
since Apr 2023
Performance
Google Cloud Trace
since Feb 2026
Priority Hints
since Mar 2026
Programming languages
Node.js
since May 2020
Security
Cloudflare Bot Management
since Sep 2024
Tag managers
Google Tag Manager
since Jun 2019
Webmail
Google Workspace
since Aug 2022
Audience
- 78% desktop
- 22% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.11 / 10 · ranked #502,085 of all domains
58 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 3.6 MB · 110 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| backcheck.jp | 26 |
| site.backcheck.jp | 14 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- detected Priority Hints Mar 2026
- detected Google Cloud Trace Feb 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025