What powers 
qri.org?
Last seen Oct 2026 · 25 technologies across 15 categories
Analytics
Caching
CDN
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
PaaS
Programming languages
Security
UI frameworks
Video players
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 Nov 2026. A recent check saw a policy file missing; awaiting confirmation.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 51% phone
- 49% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.82 / 10 · ranked #706,050 of all domains
63 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 100 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Netlify
- Weight: 3.5 MB · 30 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Amazon Web Services (75.2.60.5)
- DNS: GoDaddy DNS
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 2,385,105, 5 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| qri.org | 15 |
| psychophysics.qri.org | 12 |
| heart.qri.org | 8 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Amazon S3 May 2026
- detected Amazon Web Services May 2026
- detected Preact Apr 2026
- detected YouTube Mar 2026
- dropped Amazon S3 Feb 2026
- dropped Amazon Web Services Feb 2026
- dropped Google Hosted Libraries Feb 2026
- detected jQuery CDN Jan 2026