What powers colusa.k12.ca.us?
Last seen Aug 2026 · 17 technologies across 11 categories
Analytics
Google Analytics
since May 2020
CDN
Font scripts
JavaScript frameworks
JavaScript libraries
Slick
since May 2020
Operating systems
Windows Server
since May 2020
UI frameworks
Bootstrap
since May 2020
Video players
YouTube
since May 2020
Web frameworks
Microsoft ASP.NET
since May 2020
Web servers
Webmail
Microsoft 365
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 63% desktop
- 38% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.67 / 10 · ranked #5,157,471 of all domains
13 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 50 ms |
| CLS | 0.15 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 3.4 MB · 123 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Amazon Web Services (34.210.195.109)
- DNS: DNS Made Easy
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 3072, expires Nov 2026
- Common Crawl link graph: rank 7,132,268, 7 hosts
- Verified with: Adobe, Microsoft 365, OpenAI
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| burchfield.colusa.k12.ca.us | 17 |
| colusahigh.colusa.k12.ca.us | 17 |
| egling.colusa.k12.ca.us | 17 |
| www.colusa.k12.ca.us | 17 |