What powers upperdarbysd.org?
Last seen Sep 2026 · 29 technologies across 15 categories
Accessibility
Analytics
CDN
Databases
Editors
JavaScript frameworks
JavaScript libraries
Miscellaneous
Programming languages
Security
Tag managers
Translation
UI frameworks
Video players
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 53% phone
- 47% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.32 / 10 · ranked #1,103,148 of all domains
47 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.6 s |
| INP | 925 ms |
| CLS | 0.1 |
| TTFB | 2000 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 19.9 MB · 161 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Upper Darby School District
- Country: United States
From Wikidata (CC0).
Infrastructure
- Hosted on Cloudflare (104.17.71.73)
- DNS: Register.com
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 171,458, 31 hosts
- Verified with: Adobe, Amazon Business, Apple Business, Cisco Duo, Microsoft 365
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| aroniminkelementary.upperdarbysd.org | 29 |
| beverlyhillsmiddle.upperdarbysd.org | 29 |
| bywoodelementary.upperdarbysd.org | 29 |
| garrettfordelementary.upperdarbysd.org | 29 |
| highlandparkelementary.upperdarbysd.org | 29 |
| hillcrestelementary.upperdarbysd.org | 29 |
| kindergartencenter.upperdarbysd.org | 29 |
| primoselementary.upperdarbysd.org | 29 |
| stonehursthillselementary.upperdarbysd.org | 29 |
| upperdarbyhigh.upperdarbysd.org | 29 |
| westbrookparkelementary.upperdarbysd.org | 29 |
| cliftonheightsmiddle.upperdarbysd.org | 28 |
| drexellhillmiddle.upperdarbysd.org | 28 |
| www.upperdarbysd.org | 28 |
Full technology history →
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