What powers sfoi.org?
Last seen Sep 2026 · 29 technologies across 18 categories
Analytics
CDN
CMS
Ecommerce
Font scripts
Hosting
JavaScript libraries
Live chat
Marketing automation
Miscellaneous
Performance
Photo galleries
Security
Video players
Web frameworks
Web servers
Webmail
Widgets
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 found
- ai.txt not found
Content Signals:
search=yes ai-train=yes ai-input=yes declared in robots.txt
AI Crawlers
No AI crawlers blocked
Standards: llms.txt, Content Signals
Audience
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.65 / 10 · ranked #5,305,268 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 4.3 MB · 192 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Amazon Web Services (35.172.94.1)
- DNS: GoDaddy DNS
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 4096, expires Oct 2026
- Common Crawl link graph: rank 7,254,132, 2 hosts
- Verified with: Brevo, Google
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| sfoi.org | 28 |
| www.sfoi.org | 28 |
Full technology history →
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Recent changes
- dropped reCAPTCHA Jun 2026
- detected libphonenumber Mar 2026
- detected reCAPTCHA Jan 2026