What powers tandemfs.org?
Last seen Oct 2026 · 27 technologies across 13 categories
Analytics
CDN
Font scripts
JavaScript frameworks
JavaScript libraries
Marketing automation
Security
Tag managers
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 67% desktop
- 33% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.75 / 10 · ranked #2,087,479 of all domains
24 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| CLS | 0.2 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 8.2 MB · 135 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Tandem Friends School
- Founded: 1970
- Country: United States
From Wikidata (CC0).
Infrastructure
- Hosted on Amazon Web Services (54.209.77.18)
- DNS: Network Solutions
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 10,994,807, 2 hosts
- Verified with: Adobe, Apple Business, Google, Meta Business, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
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Recent changes
- detected Microsoft Clarity Oct 2026
- detected Bunny Sep 2026
- detected Bunny Fonts Sep 2026
- detected Cloudflare Sep 2026
- detected Cloudflare Bot Management Sep 2026
- detected Google Tag Manager Sep 2026
- detected HighLevel Sep 2026
- detected Ionic Sep 2026
- detected libphonenumber Sep 2026