What powers ledge.jp?
Last seen Sep 2026 · 26 technologies across 18 categories
Advertising
Twitter Ads
since Sep 2021
Analytics
Google Analytics
since Aug 2019
Authentication
Facebook Login
since Sep 2021
CDN
Cloudflare
since Mar 2025
CMS
Databases
MySQL
since Aug 2019
Font scripts
Google Font API
since Aug 2019
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Maps
Google Maps
since Dec 2022
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Programming languages
PHP
since Aug 2019
Security
Cloudflare Bot Management
since Mar 2025
reCAPTCHA
since Nov 2023
UI frameworks
Web servers
Nginx
since Sep 2021
Widgets
Twitter
since Aug 2019
WordPress plugins
MetaSlider
since Mar 2022
WordPress themes
Lightning
since Mar 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.84 / 10 · ranked #4,154,013 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 2.5 MB · 72 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Ledge
- Profiles: Facebook
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Sakura Internet (163.43.252.168)
- Email: ledge.jp
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 12,585,403, 2 hosts
DNS records as swept Aug 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| ledge.jp | 26 |
| www.ledge.jp | 24 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Jul 2026
- detected Cloudflare Bot Management Jul 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025