What powers kozo.co.jp?
Last seen Aug 2026 · 23 technologies across 16 categories
Analytics
Google Analytics
since Jun 2018
CDN
Amazon CloudFront
since Mar 2020
Amazon S3
since Mar 2020
Google Hosted Libraries
since Apr 2023
jsDelivr
since Apr 2023
Ecommerce
Cart Functionality
since Oct 2021
Amazon SES
since Aug 2022
Font scripts
Font Awesome
since Apr 2023
JavaScript Frameworks
JavaScript Libraries
Miscellaneous
Open Graph
since Jul 2024
PWA
since Jul 2024
Operating systems
Ubuntu
since Aug 2018
PaaS
Amazon Web Services
since Mar 2020
Programming languages
PHP
since Jun 2018
Tag Managers
Google Tag Manager
since Jun 2017
UI frameworks
Bootstrap
since Apr 2023
Video players
YouTube
since Apr 2023
Web Servers
Webmail
Google Workspace
since Aug 2022
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
- Sep 2026 * removed from robots.txt
- Sep 2026 robots.txt removed
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 100% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.02 / 10 · ranked #553,403 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 3.4 MB · 47 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- DNS: Onamae.com
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (soft fail)
- SSL: Amazon Trust Services, RSA 2048, wildcard, expires Feb 2027
- Common Crawl link graph: rank 2,296,026, 8 hosts
- Verified with: Brevo, Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| 40th.kozo.co.jp | 13 |
| www.kozo.co.jp | 12 |
| license.kozo.co.jp | 10 |
| support.kozo.co.jp | 8 |
| online.kozo.co.jp | 3 |