What powers russellbarkley.org?
Last seen Aug 2026 · 2 technologies across 2 categories
Authentication
Web servers
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| russell barkley | #1 | 2,000 |
| dr russell barkley | #1 | 2,000 |
| barkley | #18 | 160 |
| dr russell barkley | #9 | 99 |
| adhd scientist | #1 | 64 |
| russell barkley adult adhd | #1 | 52 |
| sluggish cognitive tempo | #19 | 33 |
| sluggish cognitive tempo | #43 | 25 |
| russell barkley books | #6 | 20 |
| barkley adhd rating scale | #2 | 18 |
| adhd scientists | #4 | 14 |
| dr russell barkley | #55 | 14 |
| dr russell barkley | #45 | 14 |
| dr russell barkley | #39 | 14 |
| barkley adhd | #1 | 12 |
| who is the leading expert on adhd | #1 | 9 |
| russell barkley adhd | #1 | 9 |
| famous doctors with adhd | #2 | 8 |
| barkley adhd scale | #2 | 7 |
| adhd lectures | #2 | 6 |
| adhd in adults barkley | #2 | 6 |
| adhd doctor | #3 | 6 |
| taking charge of adhd russell barkley | #5 | 5 |
| top adhd researchers | #2 | 5 |
| adhd experts | #2 | 5 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
Policy unknown
Audience
- 53% desktop
- 47% phone
Canada
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.30 / 10 · ranked #201,185 of all domains
197 referring domains · OpenPageRank
Search traffic
4,700 est. monthly organic visits (US)
302 keywords in Google's top 30
Core Web Vitals
| LCP | 0.9 s |
| INP | 225 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 0.8 MB · 21 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on LIQUIDNETLTD1 (198.23.50.12)
- Email: supremebox.com
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P384, expires Oct 2026
- Common Crawl link graph: rank 541,180, 2 hosts
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| russellbarkley.org | 2 |
| www.russellbarkley.org | 2 |