nih.gov Nih.gov - Nihlibrary.nih.gov

   
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Domain Summary

What IP addresses does Nihlibrary.nih.gov resolve to?

• Nihlibrary.nih.gov resolves to the IP addresses 128.231.91.25.

Where are Nihlibrary.nih.gov servers located in?

• Nihlibrary.nih.gov has servers located in Washington, District of Columbia, 20032, United States.

nihlibrary.nih.gov Profile

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nihlibrary.nih.gov Traffic Analysis

There's no enough data about nihlibrary.nih.gov traffic.
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Monthly Visits n/a
Pages per Visit n/a
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Bounce Rate n/a
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Daily Unique Visitors:
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Daily Pageviews:
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HypeRank:
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Last update was 10 days ago
     
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Rank:
(Rank based on keywords, cost and organic traffic)
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Organic Keywords:
(Number of keywords in top 20 Google SERP)
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Organic Traffic:
(Number of visitors coming from top 20 search results)
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Organic Cost:
((How much need to spend if get same number of visitors from Google Adwords)
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Ad Experience Report ▼

Summary of the ad experience rating of a website for a specific platform.

Mobile summary

Root domain:
nih.gov
Ad filtering:
(Chrome is not filtering ads on your site.)
Off
Status:
(The status of the site that is reviewed for the Better Ads Standards.)
Not reviewed

Desktop summary

Root domain:
nih.gov
Ad filtering:
(Chrome is not filtering ads on your site.)
Off
Status:
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Not reviewed

Abusive Experience Report ▼

Summary of the abusive experience rating of a website.
Root domain:
nih.gov
Enforcement:
(Chrome is not preventing your site from opening new windows or tabs.)
Off
Status:
(The status of the site reviewed for the abusive experiences.)
Not reviewed

Where is nihlibrary.nih.gov hosted? ▼

Nihlibrary.nih.gov may be hosted in multiple data centers distributed in different locations around the world. This is probably just one of them.
Server IP:
128.231.91.25
ASN:
AS3527 
ISP:
National Institutes of Health 
Server Location:
Washington
District of Columbia, DC
20032
United States, US
 

Other sites hosted on 128.231.91.25

There are no other sites hosted on this IP

How fast does nihlibrary.nih.gov load? ▼

The average loading time of nihlibrary.nih.gov is 883 ms.
Average Load Time:
883 ms

Does nihlibrary.nih.gov use compression? ▼

Website compression is the process of reducing the size of website files, such as HTML, CSS, JavaScript, and image files, to improve website performance and load times. Compressing website files can significantly reduce the amount of data that needs to be transferred from the server to the user's browser, resulting in faster page load times and improved user experience. Files on nihlibrary.nih.gov are reduced by 61%.
nihlibrary.nih.gov use gzip compression.
Original size: 5.33 KB
Compressed size: 2.05 KB
File reduced by: 3.28 KB (61%)

Google Safe Browsing ▼

Google Safe Browsing is a service provided by Google that helps protect users from visiting websites that may contain malicious or harmful content, such as malware, phishing attempts, or deceptive software.
This site is not currently listed as suspicious

SSL Checker - SSL Certificate Verify ▼

An SSL (Secure Sockets Layer) certificate is a digital certificate that establishes a secure encrypted connection between a web server and a user's web browser. It provides authentication and encryption, ensuring that data transmitted between the server and the browser remains private and protected. nihlibrary.nih.gov supports HTTPS.
 nihlibrary.nih.gov supports HTTPS
     
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Common Name: nihlibrary.nih.gov
Organization:
Location:
Issuer: E7
Valid from: Sep 25 12:35:08 2025 GMT
Valid until: Dec 24 12:35:07 2025 GMT
Authority: CA:FALSE
Keysize:
Common Name: E7
Organization: Let's Encrypt
Location: US
Issuer: ISRG Root X1
Valid from: Mar 13 00:00:00 2024 GMT
Valid until: Mar 12 23:59:59 2027 GMT
Authority: CA:TRUE
Keysize:

Verify HTTP/2 Support ▼

HTTP/2 (Hypertext Transfer Protocol version 2) is a major revision of the HTTP protocol, which is the foundation of data communication on the World Wide Web. It was developed as an improvement over the previous HTTP/1.1 version to enhance web performance and efficiency.
 nihlibrary.nih.gov supports HTTP/2
     
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Http Header ▼

HTTP headers are extra portions of records despatched among a consumer (which include an internet browser) and a server at some stage in an HTTP request or response. They offer instructions, metadata, or manipulate parameters for the conversation among the consumer and server. 
Location: https://www.nihlibrary.nih.gov/
Strict-Transport-Security: max-age=31557600
Server: BigIP
Connection: Keep-Alive
Content-Length: 0

HTTP/2 403 
date: Wed, 01 Oct 2025 20:50:44 GMT
content-type: text/html; charset=UTF-8
cache-control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
expires: Thu, 01 Jan 1970 00:00:01 GMT
set-cookie: __cf_bm=q2DYFrYwbLTEJQcHM4207YR4SpHG7Y95pwEI2BCSwDk-1759351844-1.0.1.1-Ml8_VXS_HyYdq26u4fOL8zDLddRC1GI4OrCD2KaBFQIUYBPkw6G1XcZv5dPZHLSXfk95sq56bhD30o9c08lDplLG.gUEj4ILqfzGK3SzqRM; path=/; expires=Wed, 01-Oct-25 21:20:44 GMT; domain=.nih.gov; HttpOnly; Secure; SameSite=None
vary: Accept-Encoding
strict-transport-security: max-age=31536000; includeSubDomains; preload
expect-ct: max-age=86400, enforce
referrer-policy: same-origin
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
x-xss-protection: 1; mode=block
server: cloudflare
cf-ray: 987ed586fdc50805-IAD
content-encoding: gzip
alt-svc: h3=":443"; ma=86400

DNS Lookup ▼

DNS entries (Domain Name System) are a critical component of the Internet infrastructure. They act as directories that translate human-readable domain names (such as example.com) to machine-readable IP addresses. DNS records are stored on DNS servers and help forward internet traffic efficiently.
Type Ip Target/Txt TTL
A 128.231.91.25 294