Clinicaltrials.gov CTG Labs - NCBI

Clinicaltrials.gov Overview

Clinicaltrials.gov is a comprehensive and authoritative website that provides information to researchers, healthcare professionals, and patients about clinical trials across the United States and around the world. The site is hosted by NLM-NCCS – National Library of Medicine, the US hosting, and has a top-level domain of gov. It is a non-profit organization that aims to provide reliable and accurate information about clinical trials.

The homepage of clinicaltrials.gov has a simple and easily navigable structure. The site provides information about clinical trials that are currently recruiting, about to begin, or recently completed. The site provides an easy-to-use search interface to search for clinical trials using various criteria, including disease or medical condition, therapeutic area, location, and trial sponsor.

Clinicaltrials.gov is definitely a family-friendly site as it provides a variety of resources and information that can be helpful to both adults and children. The site includes educational materials on clinical trials that can be used by parents or educators to teach children about the benefits and risks of participating in clinical trials.

The website has SSL that is issued by DigiCert Inc., ensuring that the site is secure and that all user data is protected. However, according to PageSpeed Insights, the site scores 67 for speed, which means the site can be slow to load at times.

Overall, clinicaltrials.gov is a helpful and user-friendly website for anyone looking for information about clinical trials. The site is designed to provide reliable and accurate information to both researchers and patients, making it an invaluable resource for the medical community. With its clear structure and easy-to-use search interface, clinicaltrials.gov is an excellent example of a well-structured website that provides its users with relevant and necessary information.

Clinicaltrials.gov Rank Summary

Global Rank

12,796

Average Load Time

1.37sec

Links In Count

8,068

Website Value

$929,489

Audience Geography. Where are clinicaltrials.gov visitors located?

Country	Visitors
United States US	43.2%
China CN	17.2%
India IN	4.3%
Japan JP	3.8%
United Kingdom GB	3.2%
Canada CA	2.8%
Australia AU	2.2%
Italy IT	1.9%
France FR	1.8%
Other	19.5%

Country	Pageviews
United States US	41.2%
China CN	22.7%
France FR	5%
India IN	4.7%
Canada CA	3.8%
United Kingdom GB	3.3%
Japan JP	2.4%
Italy IT	2.2%
Australia AU	1.4%
Other	13.4%

Country	Rank
United States US	4345
Canada CA	5750
China CN	6027
Australia AU	6550
Egypt EG	7489
Philippines PH	8115
United Kingdom GB	9237
Italy IT	11026
France FR	12258
India IN	12473
Korea KR	14439
Iran IR	16047

Where do visitors go on clinicaltrials.gov?

Subdomain	Pageviews
clinicaltrials.gov	84.68%
register.clinicaltrials.gov	15.04%
other	0.28%

Subdomain	Pageviews per User
register.clinicaltrials.gov	12
clinicaltrials.gov	2.5

Subdomain	Reach
clinicaltrials.gov	97.31%
register.clinicaltrials.gov	3.52%

How popular is clinicaltrials.gov?

Period	Global Rank	Global Rank Delta
past 3 months	12796	-289
past month	11657	-1389
past week	12564	1014
yesterday	11340	1280

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	14164	817	52	-8.519%	3.05	-10.56%
30	13494	-471	548	3%	2.9	-11.04%
7	16626	4361	44	-28.06%	2.4	-28.31%
1	17217	429	44	-3.47%	2	20%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	13198	-741	633	2%
30	11914	-1857	70	20%
7	12047	-148	68	0.3%
1	10335	1625	82	-16.34%

Clinicaltrials.gov Website Safety

Overview

Last Updated: 02/16/2025

Overall result - clinicaltrials.gov is safe.

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Last Updated: 03/21/2024

clinicaltrials.gov is safe.

Norton ConnectSafe evaluates clinicaltrials.gov for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 02/07/2019

clinicaltrials.gov is safe.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing

Last Updated: 01/09/2019

clinicaltrials.gov is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

Site Advisor

Last Updated: 02/22/2021

clinicaltrials.gov is safe.

McAfee assesses clinicaltrials.gov for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze clinicaltrials.gov for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/09/2019

clinicaltrials.gov child safety is very good.

The WOT calculates reputation of the clinicaltrials.gov. This reputation system receives ratings from users and information from third-party sources, assesses the clinicaltrials.gov for safety features and confirms, whether clinicaltrials.gov is suitable for children.

SSL Information

SSL Checker Tool

Domain	*.clinicaltrials.gov
Issuer Organization	GoDaddy.com, Inc.
Issuer	Go Daddy Secure Certificate Authority - G2
Algorithm	RSA-SHA256
Valid form	07/01/2024
Expiration	08/02/2025
Signed	Certificate is not self signed
Additional Domains	*.clinicaltrials.gov clinicaltrials.gov

Clinicaltrials.gov Rank History

Alexa Rank shows how popular clinicaltrials.gov is in comparison with other sites. The most popular site has Alexa Rank equals 1. If clinicaltrials.gov has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to clinicaltrials.gov and pageviews on clinicaltrials.gov over the past 3 months.

Clinicaltrials.gov Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 396982

ASN Title: GOOGLE-PRIVATE-CLOUD - Google LLC, US

Last Update: 07/16/2024

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2019, American Registry for Internet Numbers, Ltd.
#

ASNumber: 396982
ASName: GOOGLE-PRIVATE-CLOUD
ASHandle: AS396982
RegDate: 2018-08-15
Updated: 2018-08-15
Comment: *** This ASN is used for Google Private Cloud ***
Comment:
Comment: Direct all copyright and legal complaints to
Comment: https://support.google.com/legal/go/report
Comment:
Comment: Direct all spam and abuse complaints to
Comment: https://support.google.com/code/go/gce_abuse_report
Comment:
Comment: For fastest response, use the relevant forms above.
Comment:
Comment: Complaints can also be sent to the GC Abuse desk
Comment: (google-cloud-compliance@google.com)
Comment: but may have longer turnaround times.
Comment:
Comment: Complaints sent to any other POC will be ignored.
Ref: https://rdap.arin.net/registry/autnum/396982

OrgName: Google LLC
OrgId: GOOGL-2
Address: 1600 Amphitheatre Parkway
City: Mountain View
StateProv: CA
PostalCode: 94043
Country: US
RegDate: 2006-09-29
Updated: 2017-12-21
Comment: *** The IP addresses under this Org-ID are in use by Google Cloud customers ***
Comment:
Comment: Direct all copyright and legal complaints to
Comment: https://support.google.com/legal/go/report
Comment:
Comment: Direct all spam and abuse complaints to
Comment: https://support.google.com/code/go/gce_abuse_report
Comment:
Comment: For fastest response, use the relevant forms above.
Comment:
Comment: Complaints can also be sent to the GC Abuse desk
Comment: (google-cloud-compliance@google.com)
Comment: but may have longer turnaround times.
Comment:
Comment: Complaints sent to any other POC will be ignored.
Ref: https://rdap.arin.net/registry/entity/GOOGL-2

OrgTechHandle: ZG39-ARIN
OrgTechName: Google LLC
OrgTechPhone: +1-650-253-0000
OrgTechEmail: arin-contact@google.com
OrgTechRef: https://rdap.arin.net/registry/entity/ZG39-ARIN

OrgAbuseHandle: GCABU-ARIN
OrgAbuseName: GC Abuse
OrgAbusePhone: +1-650-253-0000
OrgAbuseEmail: google-cloud-compliance@google.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/GCABU-ARIN

OrgNOCHandle: GCABU-ARIN
OrgNOCName: GC Abuse
OrgNOCPhone: +1-650-253-0000
OrgNOCEmail: google-cloud-compliance@google.com
OrgNOCRef: https://rdap.arin.net/registry/entity/GCABU-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2019, American Registry for Internet Numbers, Ltd.
#

Clinicaltrials.gov Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: clinicaltrials.gov
Registrar WHOIS Server: whois.nic.gov
Registrar URL: https://get.gov
Updated Date: 2024-01-08T02:55:33Z
Creation Date: 2000-02-03T19:19:38Z
Registry Expiry Date: 2025-09-22T19:03:23Z
Registrar: Cybersecurity and Infrastructure Security Agency
Registrar IANA ID: 8888888
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone:
Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: REDACTED FOR PRIVACY
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: REDACTED FOR PRIVACY
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: REDACTED FOR PRIVACY
Registrant Phone: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Email: REDACTED FOR PRIVACY
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Email: REDACTED FOR PRIVACY
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Email: REDACTED FOR PRIVACY
Registry Security ID: REDACTED FOR PRIVACY
Security Name: REDACTED FOR PRIVACY
Security Organization: REDACTED FOR PRIVACY
Security Street: REDACTED FOR PRIVACY
Security City: REDACTED FOR PRIVACY
Security State/Province: REDACTED FOR PRIVACY
Security Postal Code: REDACTED FOR PRIVACY
Security Country: REDACTED FOR PRIVACY
Security Phone: REDACTED FOR PRIVACY
Security Email: responsibledisclosure@hhs.gov
Name Server: ns-cloud-d1.googledomains.com
Name Server: ns-cloud-d2.googledomains.com
Name Server: ns-cloud-d3.googledomains.com
Name Server: ns-cloud-d4.googledomains.com
DNSSEC: signedDelegation
>>> Last update of WHOIS database: 2024-09-10T21:48:46Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
clinicaltrials.gov	130.14.81.50	30
clinicaltrials.gov	165.112.8.96	30

Host	MX Record	Priority	TTL
clinicaltrials.gov	Nihcesxway5.hub.nih.gov	10	1800
clinicaltrials.gov	Nihcesxway3.hub.nih.gov	10	1800
clinicaltrials.gov	Nihcesxway4.hub.nih.gov	10	1800

Host	NS Record	TTL
clinicaltrials.gov	gslb02.nlm.nih.gov	60
clinicaltrials.gov	gslb03.nlm.nih.gov	60
clinicaltrials.gov	gslb01.nlm.nih.gov	60

Host	TXT Record	TTL
clinicaltrials.gov	v=spf1 include:nih.gov ~all	60
clinicaltrials.gov	GrclYGeUpoKjW0RtHDm8IoEXyQddPqL5pdiiXvLuV7za7OiNXC+wgFWXKhBJGAt5m6Qx3pTXVsPlpI18d7ykiQ==	60

gslb01.nlm.nih.gov
TTL: 60
Email address: nlmdnshostmaster.mail.nih.gov
Serial: 2019071212
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum: 60

Clinicaltrials.gov HTML Check

HTML Validation Tool

Errors

Bad value “https://www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).

A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

End tag “div” seen, but there were open elements.

Unclosed element “form”.

Stray end tag “form”.

Element “option” without attribute “label” must not be empty.

Warnings

Attribute “xmlns” is not serializable as XML 1.0.

Clinicaltrials.gov Desktop Performance

Last tested: 12/06/2019

Desktop Speed

82%

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Leverage browser caching

Minify JavaScript

Minify CSS

Optimize images

Minify HTML

Enable compression

Desktop Resource Breakdown

Total Resources	34
Number of Hosts	5
Static Resources	11
JavaScript Resources	14
CSS Resources	11

Clinicaltrials.gov Mobile Insights

Last tested: 12/06/2019

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

67%

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Leverage browser caching

Minify JavaScript

Minify CSS

Optimize images

Minify HTML

Enable compression

Mobile Resource Breakdown

Total Resources	34
Number of Hosts	5
Static Resources	11
JavaScript Resources	14
CSS Resources	11

Clinicaltrials.gov Common Typos

www.clinicaltrials.com
www.clinicaltrials.net
www.clinicaltrials.org
www.clinicaltrials.info
www.clinicaltrials.biz
www.clinicaltrials.us
www.clinicaltrials.mobi
www.linicaltrials.gov
www.clinicaltrials.gov
www.xlinicaltrials.gov
www.cxlinicaltrials.gov
www.xclinicaltrials.gov
www.dlinicaltrials.gov
www.cdlinicaltrials.gov
www.dclinicaltrials.gov
www.flinicaltrials.gov
www.cflinicaltrials.gov
www.fclinicaltrials.gov
www.vlinicaltrials.gov
www.cvlinicaltrials.gov
www.vclinicaltrials.gov
www.cinicaltrials.gov
www.cpinicaltrials.gov
www.clpinicaltrials.gov
www.cplinicaltrials.gov
www.coinicaltrials.gov
www.cloinicaltrials.gov
www.colinicaltrials.gov
www.ckinicaltrials.gov
www.clkinicaltrials.gov
www.cklinicaltrials.gov
www.clnicaltrials.gov
www.clunicaltrials.gov
www.cliunicaltrials.gov
www.cluinicaltrials.gov
www.cljnicaltrials.gov
www.clijnicaltrials.gov
www.cljinicaltrials.gov
www.clknicaltrials.gov
www.cliknicaltrials.gov
www.clonicaltrials.gov
www.clionicaltrials.gov
www.cliicaltrials.gov
www.clibicaltrials.gov
www.clinbicaltrials.gov
www.clibnicaltrials.gov
www.clihicaltrials.gov
www.clinhicaltrials.gov
www.clihnicaltrials.gov
www.clijicaltrials.gov
www.clinjicaltrials.gov
www.climicaltrials.gov
www.clinmicaltrials.gov
www.climnicaltrials.gov
www.clincaltrials.gov
www.clinucaltrials.gov
www.cliniucaltrials.gov
www.clinuicaltrials.gov
www.clinjcaltrials.gov
www.clinijcaltrials.gov
www.clinkcaltrials.gov
www.clinikcaltrials.gov
www.clinkicaltrials.gov
www.clinocaltrials.gov
www.cliniocaltrials.gov
www.clinoicaltrials.gov
www.clinialtrials.gov
www.clinixaltrials.gov
www.clinicxaltrials.gov
www.clinixcaltrials.gov
www.clinidaltrials.gov
www.clinicdaltrials.gov
www.clinidcaltrials.gov
www.clinifaltrials.gov
www.clinicfaltrials.gov
www.clinifcaltrials.gov
www.clinivaltrials.gov
www.clinicvaltrials.gov
www.clinivcaltrials.gov
www.clinicltrials.gov
www.clinicqltrials.gov
www.clinicaqltrials.gov
www.clinicqaltrials.gov
www.clinicwltrials.gov
www.clinicawltrials.gov
www.clinicwaltrials.gov
www.clinicsltrials.gov
www.clinicasltrials.gov
www.clinicsaltrials.gov
www.cliniczltrials.gov
www.clinicazltrials.gov
www.cliniczaltrials.gov
www.clinicatrials.gov
www.clinicaptrials.gov
www.clinicalptrials.gov
www.clinicapltrials.gov
www.clinicaotrials.gov
www.clinicalotrials.gov
www.clinicaoltrials.gov
www.clinicaktrials.gov
www.clinicalktrials.gov
www.clinicakltrials.gov
www.clinicalrials.gov
www.clinicalrrials.gov
www.clinicaltrrials.gov
www.clinicalrtrials.gov
www.clinicalfrials.gov
www.clinicaltfrials.gov
www.clinicalftrials.gov
www.clinicalgrials.gov
www.clinicaltgrials.gov
www.clinicalgtrials.gov
www.clinicalyrials.gov
www.clinicaltyrials.gov
www.clinicalytrials.gov
www.clinicaltials.gov
www.clinicalteials.gov
www.clinicaltreials.gov
www.clinicalterials.gov
www.clinicaltdials.gov
www.clinicaltrdials.gov
www.clinicaltdrials.gov
www.clinicaltfials.gov
www.clinicaltrfials.gov
www.clinicalttials.gov
www.clinicaltrtials.gov
www.clinicalttrials.gov
www.clinicaltrals.gov
www.clinicaltruals.gov
www.clinicaltriuals.gov
www.clinicaltruials.gov
www.clinicaltrjals.gov
www.clinicaltrijals.gov
www.clinicaltrjials.gov
www.clinicaltrkals.gov
www.clinicaltrikals.gov
www.clinicaltrkials.gov
www.clinicaltroals.gov
www.clinicaltrioals.gov
www.clinicaltroials.gov
www.clinicaltrils.gov
www.clinicaltriqls.gov
www.clinicaltriaqls.gov
www.clinicaltriqals.gov
www.clinicaltriwls.gov
www.clinicaltriawls.gov
www.clinicaltriwals.gov
www.clinicaltrisls.gov
www.clinicaltriasls.gov
www.clinicaltrisals.gov
www.clinicaltrizls.gov
www.clinicaltriazls.gov
www.clinicaltrizals.gov
www.clinicaltrias.gov
www.clinicaltriaps.gov
www.clinicaltrialps.gov
www.clinicaltriapls.gov
www.clinicaltriaos.gov
www.clinicaltrialos.gov
www.clinicaltriaols.gov
www.clinicaltriaks.gov
www.clinicaltrialks.gov
www.clinicaltriakls.gov
www.clinicaltrial.gov
www.clinicaltrialw.gov
www.clinicaltrialsw.gov
www.clinicaltrialws.gov
www.clinicaltriale.gov
www.clinicaltrialse.gov
www.clinicaltriales.gov
www.clinicaltriald.gov
www.clinicaltrialsd.gov
www.clinicaltrialds.gov
www.clinicaltrialz.gov
www.clinicaltrialsz.gov
www.clinicaltrialzs.gov
www.clinicaltrialx.gov
www.clinicaltrialsx.gov
www.clinicaltrialxs.gov
www.clinicaltriala.gov
www.clinicaltrialsa.gov
www.clinicaltrialas.gov

Clinicaltrials.gov CTG Labs - NCBI

Clinicaltrials.gov Overview

Clinicaltrials.gov Rank Summary

Clinicaltrials.gov Website Safety

Clinicaltrials.gov Rank History

Clinicaltrials.gov Hosting Information

Clinicaltrials.gov Domain Registration and Settings

Clinicaltrials.gov HTML Check

Clinicaltrials.gov Desktop Performance

Clinicaltrials.gov Mobile Insights

Clinicaltrials.gov Similar Audits

Clinicaltrials.gov Common Typos