What powers rchk.edu.hk?
Last seen Oct 2026 · 67 technologies across 26 categories
Analytics
Authentication
Facebook Login
since Jun 2021
CDN
cdnjs
since Aug 2022
Cloudflare
since Jun 2016
Google Cloud CDN
since Oct 2023
Google Hosted Libraries
since Aug 2022
CMS
Cookie compliance
Databases
MySQL
since Jun 2018
Google Workspace
since Aug 2022
Mailgun
since Dec 2022
Font scripts
IaaS
Google Cloud
since Oct 2023
Issue trackers
Sentry
since May 2023
JavaScript frameworks
JavaScript libraries
Swiper
since Oct 2024
LMS
Moodle
since Aug 2018
Marketing automation
HubSpot
since Aug 2022
Miscellaneous
Operating systems
Red Hat
since Jan 2024
Performance
Priority Hints
since May 2023
Photo galleries
Programming languages
Security
Cloudflare Bot Management
since Aug 2022
HSTS
since Nov 2022
Tag managers
Google Tag Manager
since Jun 2018
UI frameworks
Angular Material
since Aug 2022
Bootstrap
since Feb 2021
Material Design Lite
since Aug 2022
W3.CSS
since Aug 2026
Web frameworks
Microsoft ASP.NET
since Nov 2022
Web server extensions
Web servers
WordPress plugins
Smash Balloon Instagram Feed
since Sep 2023
The Events Calendar
since Aug 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 100% desktop
Hong Kong SAR China
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.55 / 10 · ranked #2,411,564 of all domains
25 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 75 ms |
| CLS | 0.1 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 0.9 MB · 40 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Renaissance College
- Founded: 2006
- Country: People's Republic of China
From Wikidata (CC0).
Infrastructure
- Hosted on Cloudflare (104.21.4.28, IPv6)
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: GoDaddy, RSA 2048, wildcard, expires Jan 2027
- Common Crawl link graph: rank 2,321,887, 22 hosts
- Verified with: Amazon SES, Canva, Have I Been Pwned
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.rchk.edu.hk | 36 |
| rdapps.rchk.edu.hk | 19 |
| www.leeks.rchk.edu.hk | 17 |
| phis.rchk.edu.hk | 11 |
| sport.rchk.edu.hk | 10 |
| auction.rchk.edu.hk | 9 |
| inspire.rchk.edu.hk | 9 |
| sso.rchk.edu.hk | 7 |
| myaccount.rchk.edu.hk | 6 |