What powers gvsd.org?
Last seen Aug 2026 · 40 technologies across 23 categories
Accessibility
Analytics
CDN
Databases
Editors
Font Scripts
Hosting Panels
JavaScript Frameworks
JavaScript Libraries
LMS
Miscellaneous
Operating systems
Programming Languages
Search engines
Security
Surveys
Tag managers
Translation
UI frameworks
Video players
Web Frameworks
Web Servers
Webmail
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 Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 57% desktop
- 43% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.40 / 10 · ranked #1,006,983 of all domains
53 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 75 ms |
| CLS | 0.2 |
| TTFB | 1600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 1.9 MB · 63 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Great Valley High School
- Founded: 1962
- Country: United States
From Wikidata (CC0).
Infrastructure
- Hosted on Cloudflare (104.17.70.73)
- DNS: chesco.net
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 2,252,548, 11 hosts
- Verified with: Adobe, Apple Business
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.gvsd.org | 28 |
| gvfsc.gvsd.org | 27 |
| gw.gvsd.org | 27 |
| hs.gvsd.org | 27 |
| kdm.gvsd.org | 27 |
| ms.gvsd.org | 27 |
| st.gvsd.org | 26 |
| ct.gvsd.org | 24 |
| moodle.gvsd.org | 7 |
| rocket.gvsd.org | 5 |
| skyward.gvsd.org | 5 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Qualtrics Jul 2026
- detected VideoJS May 2026
- detected Stimulus Mar 2026
- detected Htmx Nov 2025
- dropped Cloudflare Bot Management Oct 2025