What powers 
cys.org.hk?
Last seen Aug 2026 · 26 technologies across 15 categories
Accessibility
Caching
CMS
Databases
Font scripts
JavaScript libraries
Marketing automation
Miscellaneous
Performance
Programming languages
Security
UI frameworks
Web servers
WordPress plugins
WordPress themes
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 67% desktop
- 33% phone
Hong Kong SAR China
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.77 / 10 · ranked #727,587 of all domains
32 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Chinese (Hong Kong SAR China)
- Weight: 30.6 MB · 120 requests
- WordPress theme: astra · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Hong Kong Children & Youth Services
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on UDOMAIN-AS-AP UDomain Web Hosting Company Ltd (45.121.197.59)
- DNS: udomain.com.hk
- Email: no MX record returned
- SSL: GlobalSign, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 8,616,546, 4 hosts
- Verified with: GlobalSign
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| cys.org.hk | 23 |
| www.cys.org.hk | 22 |
Full technology history →
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Recent changes
- dropped Contact Form 7 Jun 2026
- dropped Isotope Nov 2025