What powers rensai.jp?
Last seen Sep 2026 · 20 technologies across 14 categories
Advertising
Criteo
since Feb 2025
DoubleClick for Publishers (DFP)
since Aug 2018
Google Publisher Tag
since Feb 2021
Twitter Ads
since Jul 2021
Analytics
CDN
Cloudflare
since Oct 2018
CMS
Databases
MySQL
since Aug 2018
Font scripts
JavaScript libraries
Miscellaneous
HTTP/3
since Sep 2022
Open Graph
since Sep 2022
Performance
Cloudflare Rocket Loader
since Oct 2022
Priority Hints
since Sep 2026
Programming languages
PHP
since Aug 2018
Security
Cloudflare Bot Management
since Mar 2025
Tag managers
Google Tag Manager
since Aug 2018
Widgets
Twitter
since Aug 2018
WordPress plugins
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Audience
- 71% desktop
- 29% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #366,561 of all domains
84 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.7 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 2200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- CDN: Cloudflare
- Weight: 1.4 MB · 42 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.26.0.107, IPv6)
- DNS: Cloudflare DNS
- Email: Cloudflare Email Routing
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Jan 2027
- Common Crawl link graph: rank 492,658
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Priority Hints Sep 2026
- detected Cloudflare Bot Management May 2026
- dropped 33Across Jan 2026
- dropped Cloudflare Bot Management Dec 2025