What powers 
raifuku.co.jp?
Last seen Oct 2026 · 27 technologies across 19 categories
Analytics
Google Analytics
since Mar 2022
Caching
WordPress Super Cache
since Mar 2022
CDN
Google Hosted Libraries
since Feb 2022
jsDelivr
since Apr 2021
CMS
Databases
MySQL
since Apr 2021
Font scripts
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Swiper
since Mar 2023
Maps
Google Maps
since Dec 2022
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Performance
Priority Hints
since Aug 2023
Programming languages
Retargeting
Google Remarketing Tag
since Mar 2022
Security
reCAPTCHA
since Jul 2023
Tag managers
Google Tag Manager
since Mar 2022
UI frameworks
Web servers
Nginx
since Apr 2020
WordPress plugins
WordPress themes
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 76% phone
- 24% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.64 / 10 · ranked #796,342 of all domains
43 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Japanese
- Weight: 10.5 MB · 77 requests
- WordPress theme: lightning-pro (child: lightning-pro-child-sample) · all themes
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Sakura Internet (163.43.102.16)
- DNS: Sakura Internet
- Email: raifuku.co.jp
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 10,880,678, 2 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| raifuku.co.jp | 20 |
| www.raifuku.co.jp | 19 |