What powers sc4k.org?
Last seen Aug 2026 · 22 technologies across 20 categories
Analytics
Google Analytics
since Mar 2020
CMS
Databases
MySQL
since Feb 2025
Amazon SES
since Aug 2022
Font scripts
Google Font API
since Feb 2025
Fundraising & donations
Qgiv
since Jul 2026
Hosting
GoDaddy
since Aug 2022
JavaScript frameworks
GSAP
since Feb 2025
JavaScript libraries
Load balancers
Amazon ALB
since Oct 2025
Miscellaneous
Open Graph
since Feb 2025
RSS
since Feb 2025
PaaS
Amazon Web Services
since Aug 2022
Programming languages
PHP
since Mar 2020
SEO
UI frameworks
Video players
YouTube
since Feb 2025
Web servers
Apache HTTP Server
since Feb 2025
Webmail
Microsoft 365
since Aug 2022
Widgets
WordPress plugins
Beaver Builder
since Feb 2025
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 70% phone
- 30% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.24 / 10 · ranked #1,206,487 of all domains
36 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 2800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 5.5 MB · 92 requests
- WordPress theme: bb-theme (child: sc4k-bb-theme-child) · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Qgiv Jul 2026
- dropped jQuery UI Nov 2025
- dropped Popup Maker Nov 2025
- detected Amazon ALB Oct 2025