What powers nref.org?
Last seen Sep 2026 · 41 technologies across 20 categories
Accessibility
Analytics
CDN
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
Operating systems
PaaS
Performance
Programming languages
Security
Tag managers
UI frameworks
Video players
Web servers
Webmail
WordPress plugins
WordPress themes
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
- 66% desktop
- 35% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.08 / 10 · ranked #1,453,778 of all domains
32 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 10.0 MB · 164 requests
- WordPress theme: hello-elementor · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Neurosurgery Research & Education Foundation (Neurosurgery Research & Education Foundation on Wikidata)
- Founded: 1980
- Country: United States
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on NEXCESS-NET (209.87.149.153)
- DNS: DNS Made Easy
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC reject
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 546,918, 2 hosts
- Verified with: Adobe, Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| nref.org | 26 |
| www.nref.org | 20 |
Full technology history →
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Recent changes
- detected YouTube Jul 2026
- detected Amazon S3 Apr 2026
- detected Amazon Web Services Apr 2026
- detected Twitter Emoji (Twemoji) Jan 2026