What powers clinicaltrials.gov?
Last seen Jun 2026 · 26 technologies across 14 categories
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| coversin | #2 | 12,000 |
| clinical studies near me | #1 | 3,700 |
| coversin | #6 | 2,500 |
| 2cb | #1 | 2,500 |
| vitamin d | #13 | 2,200 |
| clinical research | #2 | 2,000 |
| true person search | #48 | 1,900 |
| clinical research paid trials | #1 | 1,600 |
| zeus | #22 | 1,500 |
| uqora | #5 | 1,400 |
| national h | #36 | 1,400 |
| clinical trial | #1 | 1,200 |
| national institutes of health clinical center | #4 | 1,200 |
| home | #68 | 1,200 |
| alvesco | #20 | 1,100 |
| pill identifier | #69 | 1,100 |
| trials | #2 | 800 |
| clinical trials near me paid | #1 | 730 |
| clinical trial clinical study | #1 | 730 |
| 48 hour fast | #3 | 590 |
| research and studies | #1 | 580 |
| afrs | #7 | 570 |
| denali therapeutics | #4 | 530 |
| romtech | #3 | 530 |
| voy | #5 | 520 |
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.
Audience
- 65% desktop
- 35% phone
United States
India
Japan
Germany
United Kingdom
France
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
8.82 / 10 · ranked #749 of all domains
17,523 referring domains · OpenPageRank
Search traffic
154,900 est. monthly organic visits (US)
72,567 keywords in Google's top 30
Core Web Vitals
| LCP | 2.4 s |
| INP | 125 ms |
| CLS | 0.8 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Google
- Weight: 1.4 MB · 101 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| beta-ut.clinicaltrials.gov | 19 |
| beta.clinicaltrials.gov | 19 |
| www.clinicaltrials.gov | 17 |
| clinicaltrials.gov | 14 |
| classic.clinicaltrials.gov | 11 |
| prsinfo.clinicaltrials.gov | 10 |
| prstest.clinicaltrials.gov | 9 |
| register.clinicaltrials.gov | 9 |
Full technology history →
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