What powers rsyc.org.sg?
Last seen Sep 2026 · 30 technologies across 16 categories
Authentication
Facebook Login
since Jul 2021
CMS
Databases
MySQL
since Jan 2019
Ecommerce
Font scripts
JavaScript frameworks
GSAP
since May 2022
JavaScript libraries
Miscellaneous
RSS
since Dec 2022
PaaS
SiteGround
since Apr 2021
Programming languages
PHP
since Jan 2019
TypeScript
since Oct 2024
Security
reCAPTCHA
since Jan 2019
UI frameworks
Web servers
Nginx
since Jan 2019
Webmail
Google Workspace
since Aug 2022
Widgets
WordPress plugins
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 51% phone
- 49% desktop
Singapore
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.19 / 10 · ranked #1,283,623 of all domains
46 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Google
- Weight: 23.9 MB · 142 requests
- WordPress theme: kallyas (child: kallyas-child) · all themes
- Structured data: Microdata, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Google (35.213.163.16)
- DNS: SiteGround Email
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Jan 2027
- Common Crawl link graph: rank 3,437,149, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped core-js Jan 2026
- detected Twitter Emoji (Twemoji) Dec 2025