What powers 
jstem.org?
Last seen Sep 2026 · 15 technologies across 11 categories
Advertising
Analytics
CDN
DMS
JavaScript graphics
JavaScript libraries
Miscellaneous
Performance
Programming languages
Security
UI frameworks
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.41 / 10 · ranked #416,190 of all domains
115 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 25 ms |
| CLS | 0.05 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 5.9 MB · 37 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Jul 2003 (23 years) via GoDaddy.com, LLC, renews Jul 2028
- Hosted on Cloudflare (104.21.62.249, IPv6)
- DNS: Cloudflare DNS
- Email: jstem.org
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 486,064, 3 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.jstem.org | 14 |
| jstem.org | 11 |
Full technology history →
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Recent changes
- detected Priority Hints Sep 2026
- detected Cloudflare Browser Insights Nov 2025