What powers psdr3.org?
Last seen Sep 2026 · 44 technologies across 22 categories
Accessibility
Analytics
CDN
CMS
Databases
Editors
Font scripts
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Operating systems
Programming languages
Security
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 54% phone
- 46% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.38 / 10 · ranked #1,026,261 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 100 ms |
| CLS | 0.15 |
| TTFB | 1900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 1.9 MB · 60 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Pattonville High School
- Founded: 1839
- Country: United States
From Wikidata (CC0).
Infrastructure
- Hosted on Cloudflare (104.17.67.73)
- DNS: psdr3.org
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 155,856, 33 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| bridgeway.psdr3.org | 28 |
| drummond.psdr3.org | 28 |
| earlychildhood.psdr3.org | 28 |
| heights.psdr3.org | 28 |
| holman.psdr3.org | 28 |
| parkwood.psdr3.org | 28 |
| phs.psdr3.org | 28 |
| remington.psdr3.org | 28 |
| roseacres.psdr3.org | 28 |
| willowbrook.psdr3.org | 28 |
| www.psdr3.org | 28 |
| psdr3.org | 16 |
| ec.psdr3.org | 15 |
| directory.psdr3.org | 14 |
| web.psdr3.org | 14 |
| ht.psdr3.org | 11 |
| empower.psdr3.org | 10 |
| map.psdr3.org | 9 |
| emponline.psdr3.org | 7 |
| elink.psdr3.org | 5 |
Full technology history →
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