What powers stjohnsprepschool.org?
Last seen Oct 2026 · 20 technologies across 12 categories
Analytics
Google Analytics
since Jan 2019
CDN
Cloudflare
since May 2022
Editors
DreamWeaver
since Feb 2019
Font scripts
Google Font API
since May 2025
JavaScript libraries
Miscellaneous
Babel
since Mar 2020
Open Graph
since Sep 2022
Operating systems
Windows Server
since Jan 2019
Security
Tag managers
Google Tag Manager
since Nov 2020
Web frameworks
Microsoft ASP.NET
since Jan 2019
Web servers
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 60% desktop
- 40% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.75 / 10 · ranked #4,661,225 of all domains
14 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 15.0 MB · 119 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- St. John's Preparatory School
- Founded: 1870
- Country: United States
From Wikidata (CC0).
Infrastructure
- Hosted on Amazon Web Services (54.204.24.19)
- DNS: Network Solutions
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 11,371,887, 3 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.stjohnsprepschool.org | 17 |
| sirs-webserver.stjohnsprepschool.org | 3 |
Full technology history →
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