What powers circuit5.org?
Last seen Sep 2026 · 17 technologies across 12 categories
Analytics
Google Analytics
since Jun 2019
CDN
Cloudflare
since Jun 2019
CMS
WordPress
since Jan 2019
Databases
MySQL
since Jan 2019
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Performance
Cloudflare Rocket Loader
since Oct 2022
Priority Hints
since Jun 2024
Programming languages
PHP
since Jan 2019
Webmail
Microsoft 365
since Aug 2022
Widgets
FlexSlider
since Aug 2024
WordPress plugins
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
- 66% desktop
- 34% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.39 / 10 · ranked #1,018,184 of all domains
50 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 1.7 MB · 56 requests
- WordPress theme: jupiter (child: jupiter-child) · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.26.12.240, IPv6)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Jan 2027
- Common Crawl link graph: rank 2,228,687, 4 hosts
- Verified with: Cisco, Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted