How much traffic does clinicaltrials.gov get?

clinicaltrials.gov is estimated to receive about 510,366 visits per month from search, of which roughly 100% is organic.

How many keywords does clinicaltrials.gov rank for?

clinicaltrials.gov ranks for approximately 57,225 organic keywords in Google.

Is clinicaltrials.gov visible to AI engines like ChatGPT and Perplexity?

clinicaltrials.gov scores 94 out of 100 (grade A+) on Amrut.ai's AI visibility score, which measures its llms.txt, profile completeness, technical health, crawlability and structured data.

Does clinicaltrials.gov have an llms.txt file?

Yes — clinicaltrials.gov publishes an llms.txt of about 138 lines, which tells AI engines what the business does.

clinicaltrials.gov traffic & AI visibility — rank #3,550

Name: clinicaltrials.gov traffic, keywords, backlinks and AI visibility
Creator: Amrut.ai
License: https://amrut.ai/terms

clinicaltrials.gov Web Traffic Statistics

A snapshot of how clinicaltrials.gov performs in search and in AI answers — every number below is one we hold, not a guess.

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Key findings

ClinicalTrials is ranked #3,550 worldwide among healthcare websites in our August 2026 ranking of the top 100,000 domains.
It is estimated to receive about 510,000 visits a month from search, 100% of it organic, across 57,000 ranking keywords.
Its AI visibility score is 94 out of 100 (grade A+), with a published llms.txt of 138 lines.
Its last technical audit scored 90/100, with "Add a Meta Description" the highest-priority fix.

The search demand this domain captures every month, and where it is heading
How ready it is for the AI engines that cite sources — and what is missing
The competitors it actually ranks against, and who links to them

What this company does

ClinicalTrials.gov operates as a central registry for clinical research studies taking place across many countries. Organizations and individual investigators submit details about each trial, such as the medical condition under study, the type of intervention being tested, enrollment requirements, and site locations. The database also stores results once trials finish, so visitors can review what was learned rather t…

Our read on the site

The overall SEO health of ClinicalTrials.gov is strong, with a perfect SEO score of 100/100 and excellent accessibility. However, there are critical gaps in on-page elements such as the missing meta description and H1 tags, which need to be addressed to enhance visibility and user engagement.

HealthcareClinical ResearchInformation TechnologyPublic ServiceClinical trial registryTrial results database

clinicaltrials.gov Traffic and Visitor Engagement

Month by month, how much search traffic this domain earns — how much of it is free, and whether it is winning or losing ground.

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Monthly visits

510.4K

Latest estimate

Change

No monthly history yet

It starts building from the first scan

Organic visits

510.4K

100% of all traffic

Paid visits

clinicaltrials.gov AI Visibility

Whether AI engines can read this brand, understand it, and cite it when someone asks about its category.

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94out of 100

Grade A+

Scored from this domain's own data — llms.txt, profile completeness, technical health, crawlability and structured data.

ChatGPTGeminiPerplexity

clinicaltrials.gov LLMS.txt

The file AI engines read to understand a business. This is what it currently tells them about this one.

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Status

Published

AI engines can read it

Lines

138

In the file

Size

6.5K

Characters

Sections

12

clinicaltrials.gov Organic Keywords

The searches this domain already ranks for, and how much traffic they bring it.

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Ranking keywords

57.2K

Found in Google for this domain

Visits they bring

510.4K

Estimated organic visits a month

Top ranking keywords

No ranked-keyword data cached for this domain yet.

Ranked Keywords pulls the full list on its first run.

What it ranks for

clinicaltrials.gov SEO Audit

How the site itself performs — speed, accessibility and the technical basics both search crawlers and AI crawlers depend on.

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90

Overall

Excellent

clinicaltrials.gov Competitors and Alternatives

The websites this domain competes with for the same searches and the same AI answers.

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www.clinicaltrialsregister.eu

www.clinicaltrialsarena.com

clinicaltrials.gov Company Profile

The business behind the domain — what it does, where it is, and who runs it.

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ClinicalTrials.gov operates as a central registry for clinical research studies taking place across many countries. Organizations and individual investigators submit details about each trial, such as the medical condition under study, the type of intervention being tested, enrollment requirements, and site locations. The database also stores results once trials finish, so visitors can review what was learned rather t…

HealthcareClinical ResearchInformation TechnologyPublic Service

Sector: Healthcare

clinicaltrials.gov Traffic by Country

Which markets this brand actually serves, and where the web links to it from.

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Top customer markets

AI estimate · live web

We only measure visitor geography for domains whose analytics are connected to us. For everyone else this is read live from the web and shown as an estimate — never mixed in with the measured numbers.

No market breakdown available for this brand.

Where its backlinks come from

Measured. The country each linking site is hosted in — a real signal of which regions know this brand.

No backlink sample for this domain yet.

Backlink Analytics collects one on its first run.

clinicaltrials.gov Backlink Analytics

Who vouches for this domain. Strong, varied links are still the clearest signal of authority — to search engines and to AI engines that cite sources.

See all backlinks

We haven't run a backlink crawl for clinicaltrials.gov yet, so there are no link counts to show. Backlink Analytics builds the profile on its first run and it appears here after that.

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links on file

clinicaltrials.gov — August 2026 traffic, keywords & AI visibility

clinicaltrials.gov Web Traffic Statistics

Key findings

clinicaltrials.gov Traffic and Visitor Engagement

clinicaltrials.gov AI Visibility

clinicaltrials.gov LLMS.txt

clinicaltrials.gov Organic Keywords

Top ranking keywords

What it ranks for

clinicaltrials.gov SEO Audit

clinicaltrials.gov Competitors and Alternatives

clinicaltrials.gov Company Profile

clinicaltrials.gov Traffic by Country

Top customer markets

Where its backlinks come from

clinicaltrials.gov Backlink Analytics

Companies ranked next to clinicaltrials.gov

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Organic vs paid

What the file says

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