MarkosWebAI Agentic Readiness Directory

clinicaltrials.gov

ClinicalTrials.gov

Overview

clinicaltrials.gov has been online since at least 2013 and is currently active, with 3511 recorded homepage checks. It runs on istio-envoy.

First seen online2013-05-18 or earlier
Last seen online2026-06-18
Web presence13+ years
StatusHTTP 200 (active)
HTTPSyes
Homepage titleClinicalTrials.gov
Technologyistio-envoy
Languageeng

Profile

clinicaltrials.gov has been online for at least 13 years - first seen on 18 May 2013 and most recently on 18 Jun 2026. The site may well be older; 2013 is simply our earliest record of it. Its homepage has been checked 3511 times - about 270 per year - a level of activity typical of a large, high-traffic site.

At the most recent check the site returned HTTP 200 over HTTPS, so it is currently active and reachable.

The homepage is titled "ClinicalTrials.gov". The site is built on istio-envoy. Content is served in English.

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Frequently asked

How long has clinicaltrials.gov been online?
clinicaltrials.gov has been online for at least 13 years - first seen on 18 May 2013, and possibly earlier.
Is clinicaltrials.gov currently active?
Yes - the most recent check on 18 Jun 2026 returned HTTP 200, so clinicaltrials.gov is active.
What technology does clinicaltrials.gov use?
clinicaltrials.gov runs on istio-envoy.
What language is clinicaltrials.gov in?
The clinicaltrials.gov homepage is served in English.
How active is clinicaltrials.gov?
Its homepage has been checked 3511 times between 2013 and 2026 - about 270 per year.

This profile for clinicaltrials.gov is compiled from public web data (methodology). Machine-readable: JSON. Updated .