What powers rainbowcentre.org.sg?
Last seen Jun 2026 · 71 technologies across 28 categories
Analytics
Google Analytics
since Jan 2019
Appointment scheduling
Calendly
since Aug 2024
Authentication
Google Sign-in
since Oct 2022
Caching
WordPress Super Cache
since Apr 2022
CDN
Amazon CloudFront
since Apr 2022
Amazon S3
since Jan 2026
cdnjs
since Apr 2023
Cloudflare
since Apr 2023
jsDelivr
since Jul 2020
CMS
Databases
MySQL
since Jan 2019
PostgreSQL
since Jul 2023
Font scripts
Google Font API
since Jan 2019
Twitter Emoji (Twemoji)
since Jan 2019
Issue trackers
Sentry
since Mar 2026
JavaScript frameworks
JavaScript graphics
JavaScript libraries
LMS
Miscellaneous
Less
since Jul 2023
Open Graph
since Sep 2022
PWA
since Jan 2026
RSS
since Dec 2022
Webpack
since Jan 2026
Mobile frameworks
PaaS
Amazon Web Services
since Apr 2022
Page builders
WordPress Block Editor
since Jul 2024
Performance
Priority Hints
since Feb 2024
Programming languages
Security
SEO
UI frameworks
Video players
YouTube
since Jun 2020
Web frameworks
Web servers
Apache HTTP Server
since Jan 2019
Nginx
since Mar 2026
Webmail
Apple iCloud Mail
since Jan 2023
Google Workspace
since Aug 2022
WordPress plugins
Autoptimize
since Dec 2025
Jetpack
since Feb 2022
Kadence WP Blocks
since Mar 2026
Smash Balloon Instagram Feed
since Sep 2024
WordPress themes
Twenty Seventeen
since Apr 2023
Audience
- 52% desktop
- 49% phone
Singapore
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.69 / 10 · ranked #768,093 of all domains
58 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- Weight: 6.6 MB · 61 requests
- WordPress theme: rainbowcentre · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.rainbowcentre.org.sg | 30 |
| rainbowcentre.org.sg | 29 |
| cms.rainbowcentre.org.sg | 21 |
| careers.rainbowcentre.org.sg | 16 |
| learning.rainbowcentre.org.sg | 16 |
| ocms.rainbowcentre.org.sg | 13 |
Full technology history →
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Recent changes
- detected Elementor Jun 2026
- dropped Embed Optimizer May 2026
- dropped MonsterInsights May 2026
- dropped Optimization Detective May 2026
- dropped Performance Lab May 2026
- detected Autoptimize Dec 2025
- detected Embed Optimizer Dec 2025
- detected Enhanced Responsive Images Dec 2025
- detected Modern Image Formats Dec 2025
- detected Optimization Detective Dec 2025
- detected Performance Lab Dec 2025
- detected WordPress Super Cache Oct 2025