What powers promontoryschool.org?
Last seen Sep 2026 · 21 technologies across 10 categories
CDN
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
RUM
Security
UI 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
- 68% phone
- 32% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.49 / 10 · ranked #6,581,322 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 16.6 MB · 143 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Amazon Web Services (18.233.124.95)
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Oct 2026
- Common Crawl link graph: rank 7,808,194, 2 hosts
- Verified with: Adobe, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Google Cloud Sep 2026
- dropped Google Cloud CDN Sep 2026
- dropped GSAP Sep 2026
- dropped HTTP/3 Sep 2026
- dropped Lodash Sep 2026
- dropped Priority Hints Sep 2026
- dropped React Sep 2026
- dropped RequireJS Sep 2026
- dropped Sentry Sep 2026
- dropped Wix Sep 2026
- detected AlertifyJS Aug 2026
- detected cdnjs Aug 2026
- detected Cloudflare Aug 2026
- detected core-js Aug 2026
- detected Datadog Aug 2026
- detected Font Awesome Aug 2026
- detected Google Font API Aug 2026
- detected HeadJS Aug 2026
- detected jQuery Aug 2026
- detected jQuery UI Aug 2026
- detected jsDelivr Aug 2026
- detected Moment.js Aug 2026
- detected Nginx Aug 2026
- detected reCAPTCHA Aug 2026
- detected Slick Aug 2026
- detected Typekit Aug 2026
- detected Unpkg Aug 2026