What powers gemcenters.org?
Last seen Sep 2026 · 20 technologies across 10 categories
Analytics
CDN
Font scripts
JavaScript libraries
Miscellaneous
Mobile frameworks
Page builders
Security
Tag managers
Webmail
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 55% desktop
- 45% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.24 / 10 · ranked #3,000,621 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 2.9 MB · 103 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (198.202.211.1)
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 12,916,270, 2 hosts
- Verified with: Google
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 Mautic Aug 2026
- detected Mautic Jun 2026
- dropped Cloudflare Turnstile May 2026
- dropped GoDaddy Mar 2026