What powers 
tokyo-23city.or.jp?
Last seen Sep 2026 · 7 technologies across 6 categories
Analytics
Google Analytics
since Apr 2019
Font scripts
Google Font API
since Aug 2022
JavaScript libraries
Security
HSTS
since Mar 2023
Tag managers
Google Tag Manager
since Aug 2022
Web servers
Apache HTTP Server
since Apr 2019
Nginx
since Dec 2020
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
- 56% phone
- 44% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #353,290 of all domains
62 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 2.0 MB · 59 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- DNS: Onamae.com
- Email: no MX record returned
- Email security: DMARC monitor only
- SSL: GlobalSign, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 482,362, 6 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| collabo.tokyo-23city.or.jp | 6 |
| www.tokyo-23city.or.jp | 4 |
Full technology history →
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Recent changes
- dropped OWL Carousel Jul 2026
- dropped Twitter Mar 2026
- dropped Twitter Ads Mar 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025