What powers chikyu-jack.com?
Last seen Sep 2026 · 25 technologies across 19 categories
Advertising
Google AdSense
since Aug 2017
Twitter Ads
since Jul 2021
Analytics
Google Analytics
since Aug 2018
Authentication
Facebook Login
since Jul 2021
CDN
Cloudflare
since Mar 2025
Google Hosted Libraries
since Feb 2022
CMS
Databases
MySQL
since Aug 2018
Font scripts
Font Awesome
since Aug 2017
Google Font API
since Aug 2017
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Miscellaneous
RSS
since Dec 2022
Performance
LazySizes
since Feb 2022
Priority Hints
since Sep 2026
Programming languages
PHP
since Aug 2018
Security
Cloudflare Bot Management
since Mar 2025
reCAPTCHA
since Apr 2022
SEO
Tag managers
Google Tag Manager
since Aug 2021
UI frameworks
Bootstrap
since Aug 2017
Web servers
Nginx
since Aug 2018
Widgets
Twitter
since Aug 2018
WordPress plugins
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Standards: llms.txt
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.31 / 10 · ranked #8,544,286 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 1.3 MB · 48 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- 地球ジャック
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Sakura Internet (210.224.185.85)
- DNS: Sakura Internet
- Email: chikyu-jack.com
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 12,980,886
DNS records as swept Sep 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Google Tag Manager Sep 2026
- detected Priority Hints Sep 2026
- dropped Google Tag Manager Jul 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- detected Google Tag Manager May 2026
- dropped Google Tag Manager Apr 2026
- detected Google Tag Manager Feb 2026
- dropped Microsoft ASP.NET Dec 2025
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025