What powers chelseaschools.com?
Last seen Jun 2026 · 28 technologies across 15 categories
Analytics
Cloudflare Browser Insights
since Nov 2025
Google Analytics
since Jun 2018
CDN
Cloudflare
since Nov 2025
jsDelivr
since Nov 2025
Databases
Editors
Font scripts
Google Font API
since Apr 2018
JavaScript frameworks
Stimulus
since Mar 2026
JavaScript libraries
Htmx
since Nov 2025
libphonenumber
since Nov 2025
Lightbox
since Nov 2025
Preact
since Nov 2025
Selectize
since Nov 2025
Miscellaneous
HTTP/3
since Nov 2025
Open Graph
since Sep 2022
Programming languages
Java
since Oct 2021
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Mar 2021
Translation
Weglot
since Nov 2025
UI frameworks
Video players
VideoJS
since Jun 2026
Webmail
Apple iCloud Mail
since Jan 2023
Google Workspace
since Aug 2022
Audience
- 89% desktop
- 12% phone
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.17 / 10 · ranked #1,310,747 of all domains
54 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 75 ms |
| CLS | 0.15 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 3.6 MB · 86 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| cams.chelseaschools.com | 28 |
| www.chelseaschools.com | 28 |
| chs.chelseaschools.com | 23 |
Full technology history →
Report an incorrect detection
Recent changes
- detected VideoJS Jun 2026
- detected Stimulus Mar 2026
- dropped Amazon CloudFront Dec 2025
- dropped Amazon Web Services Dec 2025
- dropped Google Hosted Libraries Dec 2025
- dropped HeadJS Dec 2025
- dropped jQuery Mobile Dec 2025
- dropped Mustache Dec 2025
- dropped New Relic Dec 2025
- dropped Pendo Dec 2025
- dropped SWFObject Dec 2025
- detected Bootstrap Nov 2025
- detected Bootstrap Icons Nov 2025
- detected Cloudflare Nov 2025
- detected Cloudflare Browser Insights Nov 2025
- detected CodeMirror Nov 2025
- detected Firebase Nov 2025
- detected Google Tag Manager Nov 2025
- detected Htmx Nov 2025
- detected HTTP/3 Nov 2025
- dropped IIS Nov 2025
- detected Java Nov 2025
- detected jsDelivr Nov 2025
- detected libphonenumber Nov 2025
- detected Lightbox Nov 2025
- dropped Microsoft ASP.NET Nov 2025
- detected Moment.js Nov 2025
- detected Preact Nov 2025
- detected Selectize Nov 2025
- detected Weglot Nov 2025
- dropped Windows Server Nov 2025
- detected New Relic Oct 2025
- dropped New Relic Aug 2025