What powers 
operahouse.co.jp?
Last seen Sep 2026 · 34 technologies across 16 categories
Advertising
Twitter Ads
since Dec 2021
Analytics
Google Analytics
since Oct 2020
CDN
cdnjs
since Aug 2022
Cloudflare
since Aug 2022
Google Hosted Libraries
since Aug 2022
jQuery CDN
since Sep 2022
jsDelivr
since Dec 2021
Unpkg
since Dec 2021
CMS
WordPress
since Oct 2020
Databases
MySQL
since Oct 2020
Font scripts
Font Awesome
since Sep 2022
Google Font API
since Oct 2020
JavaScript graphics
particles.js
since Dec 2021
JavaScript libraries
Miscellaneous
Operating Systems
CentOS
since Feb 2019
Programming languages
Security
Cloudflare Bot Management
since Mar 2025
Video players
YouTube
since Feb 2019
Web Servers
Nginx
since Oct 2020
Widgets
WordPress plugins
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
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.46 / 10 · ranked #940,586 of all domains
32 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 3.8 MB · 73 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- 株式会社オペラハウス (OperaHouse on Wikidata)
- Founded: 2002
- Sector: video game industry
- Country: Japan
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on IDCF IDC Frontier Inc. (210.140.75.248)
- Email: kagoya.net
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 594,713, 17 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| i-chu.operahouse.co.jp | 16 |
| www.operahouse.co.jp | 16 |
| akuyaku.operahouse.co.jp | 14 |
| gaclub.operahouse.co.jp | 14 |
| spmemo.operahouse.co.jp | 13 |
| sakurairo.operahouse.co.jp | 10 |
| gudetamarun.operahouse.co.jp | 9 |
| otome.operahouse.co.jp | 8 |
| nsotome.operahouse.co.jp | 5 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Bot Management Feb 2026