What powers sjdlschool.com?
Last seen Jun 2026 · 23 technologies across 12 categories
CDN
Font scripts
Google Font API
since Aug 2022
Hosting
IONOS
since May 2026
JavaScript frameworks
AlertifyJS
since May 2026
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
PHP
since May 2026
RUM
Datadog
since May 2026
Security
UI frameworks
Web servers
Nginx
since May 2026
Webmail
Apple iCloud Mail
since Mar 2023
Google Workspace
since Aug 2022
Audience
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.59 / 10 · ranked #5,724,011 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 50 ms |
| CLS | 0.15 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 57.3 MB · 151 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Clipboard.js Jun 2026
- dropped Cloudflare Browser Insights Jun 2026
- dropped Font Awesome Jun 2026
- dropped Google Analytics Jun 2026
- dropped Google Tag Manager Jun 2026
- dropped HTTP/3 Jun 2026
- dropped jQuery Migrate Jun 2026
- dropped lit-element Jun 2026
- dropped lit-html Jun 2026
- dropped OWL Carousel Jun 2026
- detected AlertifyJS May 2026
- detected Bootstrap May 2026
- detected cdnjs May 2026
- detected core-js May 2026
- detected Datadog May 2026
- detected IONOS May 2026
- detected jQuery UI May 2026
- detected jsDelivr May 2026
- detected Moment.js May 2026
- detected Nginx May 2026
- detected PHP May 2026
- detected reCAPTCHA May 2026
- detected Slick May 2026
- detected Typekit May 2026
- detected Unpkg May 2026
- dropped Cloudflare Bot Management Dec 2025
- detected Cloudflare Browser Insights Nov 2025
- detected Google Tag Manager Nov 2025
- dropped Bootstrap Oct 2025