What powers sfcircuits.com?
Last seen Sep 2026 · 25 technologies across 14 categories
Advertising
Analytics
CDN
JavaScript libraries
Marketing automation
Miscellaneous
Performance
Programming languages
Security
Tag managers
UI frameworks
Video players
Web servers
Widgets
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 81% desktop
- 19% phone
United States
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.57 / 10 · ranked #2,370,172 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 3.2 MB · 132 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 Oracle Cloud (50.6.172.82)
- DNS: azuregov-dns.us
- Email: office365.us
- Email security: SPF (hard fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 8,204,927, 2 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
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Recent changes
- dropped Font Awesome Jun 2026
- dropped Glyphicons Jun 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- detected Priority Hints May 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025