What powers sagan.jp?
Last seen Sep 2026 · 19 technologies across 13 categories
Analytics
Google Analytics
since Jan 2019
Authentication
Facebook Login
since May 2023
CMS
Databases
MySQL
since May 2023
Font scripts
Twitter Emoji (Twemoji)
since Dec 2025
Hosting
Xserver
since May 2023
JavaScript libraries
SoundManager
since May 2023
Maps
Google Maps
since May 2023
Miscellaneous
Open Graph
since May 2023
PWA
since May 2023
Programming languages
PHP
since May 2023
Security
reCAPTCHA
since May 2023
Web servers
Nginx
since May 2023
WordPress plugins
WP-PageNavi
since May 2023
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
- 71% phone
- 29% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.77 / 10 · ranked #731,188 of all domains
44 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| CLS | 0 |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 2.6 MB · 118 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Xserver (183.90.238.19)
- DNS: Xserver
- Email: sagan.jp
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 10,945,419, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Twitter Emoji (Twemoji) Dec 2025