What powers jdba.jp?
Last seen Aug 2026 · 20 technologies across 14 categories
Analytics
Google Analytics
since Aug 2022
CMS
Databases
MySQL
since Aug 2022
Font scripts
Twitter Emoji (Twemoji)
since Aug 2022
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Clipboard.js
since Aug 2022
Swiper
since Jan 2023
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Page builders
WordPress Block Editor
since Jul 2024
Programming languages
PHP
since Aug 2022
UI frameworks
Web servers
Nginx
since Aug 2022
Webmail
Google Workspace
since Aug 2022
WordPress plugins
Autoptimize
since Nov 2023
Contact Form 7
since Aug 2022
WordPress themes
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 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
2.30 / 10 · ranked #2,885,901 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 3.7 MB · 47 requests
- WordPress theme: lightning (child: lightning_child_sample) · all themes
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Sakura Internet (182.48.49.95, IPv6)
- DNS: Sakura Internet
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 15,822,226
- Verified with: Google
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Cart Functionality May 2026
- dropped Facebook Login Feb 2026
- dropped Twitter Feb 2026
- dropped Twitter Ads Feb 2026
- detected Twitter Emoji (Twemoji) Dec 2025
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025
- detected WordPress Block Editor Oct 2025