What powers jswcd.org?
Last seen Sep 2026 · 28 technologies across 16 categories
Analytics
CDN
Font scripts
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Miscellaneous
Programming languages
RUM
Search engines
Security
UI frameworks
Web frameworks
Web servers
Webmail
AI Crawlers
Blocks 1 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Search and AI assistants
- PetalBot Blocked
The other 32 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
1 of 33 AI crawlers blocked
Audience
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.88 / 10 · ranked #1,811,975 of all domains
28 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 16.3 MB · 64 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Amazon Web Services (52.32.196.230)
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 1,187,956, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Akamai May 2026
- dropped Akamai Bot Manager May 2026
- dropped Dojo May 2026