What powers tankenkobo.com?
Last seen Oct 2026 · 15 technologies across 12 categories
CMS
Databases
MySQL
since Aug 2022
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Page builders
WordPress Block Editor
since Jun 2026
Performance
Priority Hints
since Aug 2023
Programming languages
PHP
since Aug 2022
UI frameworks
Web servers
Nginx
since Aug 2022
WordPress plugins
Contact Form 7
since Aug 2022
Shortcodes Ultimate
since Aug 2022
WordPress themes
Lightning
since Aug 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
- 55% desktop
- 45% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.70 / 10 · ranked #4,950,482 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 2.8 MB · 74 requests
- WordPress theme: lightning · all themes
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Sakura Internet (59.106.171.29)
- DNS: Sakura Internet
- Email: tankenkobo.com
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 13,312,775, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Clipboard.js Jul 2026
- dropped core-js Jul 2026
- dropped reCAPTCHA Jul 2026
- detected WordPress Block Editor Jun 2026
- detected Clipboard.js May 2026
- detected core-js May 2026
- detected reCAPTCHA May 2026
- detected Shortcodes Ultimate Dec 2025