What powers cityhigh.org?
Last seen Sep 2026 · 18 technologies across 14 categories
Advertising
Analytics
Authentication
Font scripts
JavaScript libraries
Operating systems
Programming languages
Security
Tag managers
UI frameworks
Web frameworks
Web servers
Webmail
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
- 100% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.56 / 10 · ranked #2,387,473 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 200 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 11.6 MB · 148 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- City Charter High School
- Founded: 2002
- Country: United States
From Wikidata (CC0).
Infrastructure
- Hosted on LLDC (65.111.254.41)
- DNS: verio.com
- Email: Google Workspace
- Email security: no SPF record, DMARC quarantine
- SSL: Sectigo, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 7,323,391, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.cityhigh.org | 17 |
| cityhigh.org | 9 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped YouTube May 2026
- detected YouTube Mar 2026
- detected Ahoy Feb 2026
- detected Apple iCloud Mail Feb 2026
- detected POWR Feb 2026
- detected Ruby Feb 2026
- detected Ruby on Rails Feb 2026