What powers 
cto-a.org?
Last seen Oct 2026 · 35 technologies across 19 categories
Advertising
Twitter Ads
since May 2022
Analytics
Cloudflare Browser Insights
since Oct 2026
Google Analytics
since Apr 2020
CDN
Databases
Firebase
since Jun 2023
Google Workspace
since Aug 2022
Font scripts
Google Font API
since May 2021
IaaS
Google Cloud
since Jun 2023
JavaScript frameworks
JavaScript libraries
Marketing automation
MailChimp
since May 2024
Miscellaneous
PaaS
Amazon Web Services
since May 2024
Page builders
STUDIO
since Jun 2023
Performance
Priority Hints
since Oct 2026
Programming languages
Node.js
since Jun 2023
Reverse proxies
Security
Cloudflare Bot Management
since Oct 2024
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Apr 2020
Widgets
Google Plus
since May 2021
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Oct 2026 *: Allowed (was Restricted)
- Oct 2026 *: Restricted (was Allowed)
- Sep 2026 *: Allowed (was Restricted)
- Sep 2026 *: Restricted (was Allowed)
- Aug 2026 *: Allowed (was Restricted)
- Aug 2026 *: Restricted (was Allowed)
AI Crawlers
No AI crawlers blocked
Audience
- 89% desktop
- 11% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.73 / 10 · ranked #289,619 of all domains
102 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 6.4 MB · 115 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Aug 2019 (7 years) via GMO Internet Group, Inc. d/b/a Onamae.com, renews Aug 2029
- Hosted on Google Cloud (34.111.141.225)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: no SPF record, no DMARC record, MTA-STS
- SSL: Google Trust Services, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 752,273, 7 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| dxcriteria.cto-a.org | 21 |
| cto-a.org | 20 |
| dxd2023.cto-a.org | 14 |
| dxd2021.cto-a.org | 3 |