NIH.GOV National Institutes of Health (NIH) | Turning Discovery Into Health

nih.gov Website Information

Daily Unique Visits: 11,372,136

Daily Page Views: 90,977,088

Income Per Day: $90,977

Estimated Value: $98,255,160

This website is located in United States and is using following IP address 54.235.145.223. See the complete list of popular websites hosted in United States.

nih.gov is registered under .GOV top-level domain. Please check other sites in .GOV zone.

Website nih.gov is using the following name servers:

  • ns3.nih.gov
  • ns2.nih.gov
  • ns.nih.gov

and is probably hosted by AMAZON-AES - Amazon.com, Inc., US. See the full list of other websites hosted by AMAZON-AES - Amazon.com, Inc., US.

The highest website nih.gov position in Alexa rank database was 97 and the lowest rank position was 289. Current position of nih.gov in Alexa rank database is 134.

Desktop speed score of nih.gov (85/100) is better than the results of 83.24% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of nih.gov (99/100) is better than the results of 87.11% of other sites and means that the page is mobile-friendly.

Mobile speed score of nih.gov (65/100) is better than the results of 66.83% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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nih.gov Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.


nih.gov whois

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% DOTGOV WHOIS Server ready
Domain Name: NIH.GOV
Status: ACTIVE

>>> Last update of whois database: 2015-04-29T04:00:24Z

nih.gov server information

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nih.gov desktop page speed rank

Last tested: 2017-06-10


Desktop Speed Good
85/100

nih.gov Desktop Speed Test Quick Summary


priority - 9 Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://nih.gov/
https://nih.gov/
https://www.nih.gov/

priority - 4 Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://js.api.here.com/v3/3.0/mapsjs-core.js (expiration not specified)
https://js.api.here.com/v3/3.0/mapsjs-mapevents.js (expiration not specified)
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https://js.api.here.com/v3/3.0/mapsjs-ui.css (expiration not specified)
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https://dnn506yrbagrg.cloudfront.net/pages/scripts/0011/2616.js (60 minutes)
https://search.usa.gov/assets/sayt_loader.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 2 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.nih.gov/sites/all/libraries/DAP/Univer…ma,mov,avi,mp3,mp4,csv

priority - 1 Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 11.7KiB (17% reduction).

Compressing https://www.nih.gov/sites/default/files/styles/lan…6&timestamp=1496760641 could save 4.5KiB (11% reduction).
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priority - 0 Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 852B (29% reduction).

Minifying https://js.api.here.com/v3/3.0/mapsjs-ui.css could save 852B (29% reduction) after compression.

nih.gov Desktop Resource Breakdown

Total Resources52
Number of Hosts12
Static Resources42
JavaScript Resources17
CSS Resources8

nih.gov mobile page speed rank

Last tested: 2016-06-12


Mobile Speed Medium
65/100

nih.gov Mobile Speed Test Quick Summary


priority - 40 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 6 blocking script resources and 12 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.nih.gov/sites/all/libraries/DAP/Univer…ma,mov,avi,mp3,mp4,csv
https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js
https://www.nih.gov/sites/default/files/advagg_js/…0gNf3M943fAa2GB9NIo.js
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Optimize CSS Delivery of the following:

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https://fonts.googleapis.com/css?family=Droid+Sans…c,regular&subset=latin
https://www.nih.gov/sites/default/files/advagg_css…gNf3M943fAa2GB9NIo.css
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https://fonts.googleapis.com/css?family=Droid+Sans…c,regular&subset=latin
https://www.nih.gov/sites/default/files/advagg_css…gNf3M943fAa2GB9NIo.css
https://www.nih.gov/sites/default/files/advagg_css…gNf3M943fAa2GB9NIo.css

priority - 8 Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 8% of the final above-the-fold content could be rendered with the full HTML response.

priority - 5 Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://dnn506yrbagrg.cloudfront.net/pages/scripts/0011/2616.js (60 minutes)
https://dvf3ws998zno8.cloudfront.net/assets/legacy…t_75_ffffff_40x100.png (60 minutes)
https://search.usa.gov/assets/sayt.css (60 minutes)
https://search.usa.gov/assets/sayt_loader_libs.js (60 minutes)
https://search.usa.gov/assets/stats.js (60 minutes)
https://search.usa.gov/javascripts/remote.loader.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 2 Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 19.7KiB (29% reduction).

Compressing and resizing https://www.nih.gov/sites/all/themes/nih/images/nih-logo-color.png could save 9.7KiB (99% reduction).
Losslessly compressing https://www.nih.gov/sites/all/themes/nih/images/ge…ons-2x-s6278c9c16d.png could save 7.4KiB (21% reduction).
Losslessly compressing https://www.nih.gov/sites/default/files/styles/sli…r&timestamp=1462900628 could save 1.9KiB (12% reduction).
Losslessly compressing https://www.nih.gov/sites/default/files/styles/sli…N&timestamp=1462900628 could save 817B (11% reduction).

nih.gov Mobile Resource Breakdown

Total Resources59
Number of Hosts13
Static Resources48
JavaScript Resources14
CSS Resources7

nih.gov mobile page usability

Last tested: 2016-06-12


Mobile Usability Good
99/100

nih.gov Mobile Usability Test Quick Summary


priority - 0 Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="#main-content" class="element-invisi…ment-focusable">Skip to main content</a> is close to 1 other tap targets.

nih.gov Mobile Resource Breakdown

Total Resources59
Number of Hosts13
Static Resources48
JavaScript Resources14
CSS Resources7

nih.gov HTML validation

Errors

A “charset” attribute on a “meta” element found after the first 1024 bytes.

Line: 12 Column: - 21
"... charset="utf-8" /> <meta name..."

Bad value “cleartype” for attribute “http-equiv” on element “meta”.

Line: 14 Column: 1 - 44
"...SKx8s" /> <meta http-equiv="cleartype" content="on" /> <link..."

Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.

Line: 39 Column: 1 - 51
"....gov/" /> <meta http-equiv="content-language" content="EN" /> <meta..."

Bad value “//fonts.googleapis.com/css?family=Droid+Sans:700,regular|Droid+Serif:italic,regular&subset=latin” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.

Line: 58 Column: 1 - 161
"...="all" /> <link type="text/css" rel="stylesheet" href="//fonts.googleapis.com/css?family=Droid+Sans:700,regular|Droid+Serif:italic,regular&amp;subset=latin" media="all" /> <link..."

Duplicate ID “affiliate”.

Line: 143 Column: 17 - 83
"... <input id="affiliate" name="affiliate" type="hidden" value="hip" /> ..."

Duplicate attribute “id”.

Line: 341 Column: - 221
"...ow-2l-block" id="block-bean-ho..." Line: 479 Column: - 114
"...n-itn-block" id="block-bean-it..." Line: 555 Column: - 118
"...lance-block" id="block-bean-ni..." Line: 597 Column: - 162
"...initiatives" id="block-bean-fe..." Line: 660 Column: - 162
"...ion-notice-" id="block-bean-ho..."

Duplicate attribute “class”.

Line: 341 Column: - 264
"...2l-block" class="block block--..." Line: 344 Column: - 29
"..."content" class="block__conten..." Line: 479 Column: - 143
"...tn-block" class="block block--..." Line: 483 Column: - 29
"..."content" class="block__conten..." Line: 555 Column: - 159
"...ce-block" class="block block--..." Line: 559 Column: - 29
"..."content" class="block__conten..." Line: 597 Column: - 212
"...tiatives" class="block block--..." Line: 601 Column: - 29
"..."content" class="block__conten..." Line: 602 Column: - 144
"...typeof="" class="entity entity..." Line: 660 Column: - 212
"...-notice-" class="block block--..." Line: 664 Column: - 29
"..."content" class="block__conten..."

Attribute “about” not allowed on element “div” at this point.

Line: 345 Column: 5 - 154
"...ent"> <div about="/block/home-slideshow-2l-block" typeof="" class="ds-1col entity entity-bean bean-home-slideshow-2l-block view-mode-slide_block clearfix"> ..." Line: 349 Column: 26 - 226
"...ides"><li><div about="/field-collection/field-slide-field-collection/56" typeof="" class="ds-1col entity entity-field-collection-item field-collection-item-field-slide-field-collection view-mode-full clearfix"> ..." Line: 374 Column: 5 - 205
"...</li> <li><div about="/field-collection/field-slide-field-collection/66" typeof="" class="ds-1col entity entity-field-collection-item field-collection-item-field-slide-field-collection view-mode-full clearfix"> ..." Line: 399 Column: 5 - 205
"...</li> <li><div about="/field-collection/field-slide-field-collection/76" typeof="" class="ds-1col entity entity-field-collection-item field-collection-item-field-slide-field-collection view-mode-full clearfix"> ..." Line: 424 Column: 5 - 208
"...</li> <li><div about="/field-collection/field-slide-field-collection/13176" typeof="" class="ds-1col entity entity-field-collection-item field-collection-item-field-slide-field-collection view-mode-full clearfix"> ..." Line: 449 Column: 5 - 205
"...</li> <li><div about="/field-collection/field-slide-field-collection/71" typeof="" class="ds-1col entity entity-field-collection-item field-collection-item-field-slide-field-collection view-mode-full clearfix"> ..." Line: 484 Column: 5 - 118
"...ent"> <div about="/block/itn-block" typeof="" class="ds-1col entity entity-bean bean-itn view-mode-itn_block clearfix"> ..." Line: 560 Column: 5 - 148
"...ent"> <div about="/block/nih-at-a-glance-block" typeof="" class="ds-1col entity entity-bean bean-nih-at-a-glance view-mode-nih_at_a_glance clearfix"> ..." Line: 602 Column: 5 - 201
"...ent"> <div class="entity entity-bean bean-featured-resources-initiatives clearfix" about="/block/featured-resources--initiatives" typeof="" class="entity entity-bean bean-featured-resources-initiatives"> <d..." Line: 665 Column: 5 - 147
"...ent"> <div about="/block/home---nondiscrimination-notice-" typeof="" class="ds-1col entity entity-bean bean-basic-block view-mode-default clearfix"> ..."

Duplicate attribute “xml:lang”.

Line: 669 Column: - 111
"...g="es" xml:lang="es">Español</..." Line: 670 Column: - 111
"...g="zh" xml:lang="zh">繁體中文</a><..." Line: 671 Column: - 114
"...g="vi" xml:lang="vi">Tiếng Việ..." Line: 672 Column: - 110
"...g="ko" xml:lang="ko">한국어</a></..." Line: 673 Column: - 111
"...g="tl" xml:lang="tl">Tagalog</..." Line: 674 Column: - 111
"...g="ru" xml:lang="ru">Русский</..." Line: 675 Column: - 120
"...g="ar" xml:lang="ar">العربي</a..." Line: 676 Column: - 110
"...g="ht" xml:lang="ht">Kreyòl Ay..." Line: 677 Column: - 110
"...g="fr" xml:lang="fr">Français<..." Line: 678 Column: - 110
"...g="pl" xml:lang="pl">Polski</a..." Line: 679 Column: - 114
"...g="pt" xml:lang="pt">Português..." Line: 680 Column: - 111
"...g="it" xml:lang="it">Italiano<..." Line: 681 Column: - 110
"...g="de" xml:lang="de">Deutsch</..." Line: 682 Column: - 112
"...g="ja" xml:lang="ja">日本語</a></..." Line: 683 Column: - 119
"...g="fa" xml:lang="fa">فارس</a><..."

The “itemprop” attribute was specified, but the element is not a property of any item.

Line: 49 Column: 1 - 610
"... NIH." /> <meta itemprop="description" content="Official website of the National Institutes of Health (NIH). NIH is one of the world&#039;s foremost medical research centers. An agency of the U.S. Department of Health and Human Services, the NIH is the Federal focal point for health and medical research. The NIH website offers health information for the public, scientists, researchers, medical professionals, patients, educators, and students. The Site has extensive information on funding and training opportunities, clinical trials, health news and links to the many Institutes and Centers that make-up the NIH." /> <meta..."

Warnings

The “language” attribute on the “script” element is obsolete. You can safely omit it.

Line: 16 Column: 1 - 283
"...vocab" /> <script language="javascript" id="_fed_an_ua_tag" src="/sites/all/libraries/DAP/Universal-Federated-Analytics-Min.1.0.js?agency=HHS&subagency=NIH&pua=UA-22075261-1&sp=find&yt=true&exts=doc,docx,xls,xlsx,xlsm,ppt,pptx,exe,zip,pdf,js,txt,csv,dxf,wmv,jpg,wma,mov,avi,mp3,mp4,csv"></script><l..."

The “banner” role is unnecessary for element “header”.

Line: 86 Column: 5 - 43
"..."> <header class="l-header" role="banner"> ..."

The first occurrence of ID “affiliate” was here.

Line: 99 Column: 11 - 77
"... <input id="affiliate" name="affiliate" type="hidden" value="nih" /> ..."

The “contentinfo” role is unnecessary for element “footer”.

Line: 707 Column: 3 - 46
"...apper"> <footer class="l-footer" role="contentinfo"> <..."

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nih.gov Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.


nih.gov TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.