nsf.gov Website Information
Daily Unique Visits: 1,270,948
Daily Page Views: 10,167,584
Income Per Day: $10,168
Estimated Value: $10,981,440
This website is located in United States and is using following IP address 128.150.4.107. See the complete list of popular websites hosted in United States.
nsf.gov is registered under .GOV top-level domain. Please check other sites in .GOV zone.
Website nsf.gov is using the following name servers:
- ns2.nsf.gov
- ns3.nsf.gov
- ns1.nsf.gov
and is probably hosted by NSF-HQ-AS - National Science Foundation, US. See the full list of other websites hosted by NSF-HQ-AS - National Science Foundation, US.
The highest website nsf.gov position in Alexa rank database was 986 and the lowest rank position was 1276. Current position of nsf.gov in Alexa rank database is 1199.
Desktop speed score of nsf.gov (36/100) is better than the results of 12% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of nsf.gov (97/100) is better than the results of 49.9% of other sites and means that the page is mobile-friendly.
Mobile speed score of nsf.gov (44/100) is better than the results of 24.22% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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nsf.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.
nsf.gov whois
WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.
% DOTGOV WHOIS Server ready
Domain Name: NSF.GOV
Status: ACTIVE
Security Contact Email: dis-secteam@nsf.gov
>>> Last update of whois database: 2021-04-25T07:43:19Z
Domain Name: NSF.GOV
Status: ACTIVE
Security Contact Email: dis-secteam@nsf.gov
>>> Last update of whois database: 2021-04-25T07:43:19Z
nsf.gov server information
Servers Location
nsf.gov desktop page speed rank
Last tested: 2017-05-19
Desktop Speed
Bad
36/100
nsf.gov Desktop Speed Test Quick Summary
priority - 134Optimize images
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priority - 26Enable compression
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Enable compression for the following resources to reduce their transfer size by 249.7KiB (78% reduction).
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priority - 22Leverage 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://nsf.gov/css/bootstrap.min.css (expiration not specified)
https://nsf.gov/css/nav-test.css (expiration not specified)
https://nsf.gov/css/nsfgov.css (expiration not specified)
https://nsf.gov/css/print.css (expiration not specified)
https://nsf.gov/css/style1-redesign.css (expiration not specified)
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https://nsf.gov/images/nsf_logo.png (expiration not specified)
https://nsf.gov/images/sprite.png (expiration not specified)
https://nsf.gov/js/bootstrap.min.js (expiration not specified)
https://nsf.gov/js/nsfgov.js (expiration not specified)
https://nsf.gov/js/responsive-tabs.js (expiration not specified)
https://nsf.gov/js/twitterFetcher_min.js (expiration not specified)
https://nsf.gov/js/webtrends.js (expiration not specified)
https://nsf.gov/news/home_banner_css/funding_image…_HowItGetsThere.fw.png (expiration not specified)
https://nsf.gov/news/home_banner_css/funding_images/NSF_HowItIsSpent.fw.png (expiration not specified)
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https://nsf.gov/news/home_banner_css/funding_images/NSF_WhereItGoes.fw.png (expiration not specified)
https://nsf.gov/news/home_banner_css/slider_img/bacteria3_b.jpg (expiration not specified)
https://nsf.gov/news/home_banner_css/slider_img/hafnia_b.jpg (expiration not specified)
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https://nsf.gov/news/home_banner_css/slider_img/bacteria3_b.jpg (expiration not specified)
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https://nsf.gov/news/home_banner_css/slider_img/pacman_b.jpg (expiration not specified)
https://nsf.gov/news/home_banner_css/slider_img/serpent_b.jpg (expiration not specified)
https://nsf.gov/news/mmg/media/images/blackholemergersim_f.jpg (expiration not specified)
https://nsf.gov/news/now_showing/images/bigbird_f.jpg (expiration not specified)
https://nsf.gov/news/other_images/crabnebula_as.jpg (expiration not specified)
https://nsf.gov/news/other_images/crystal_snowflake_as.jpg (expiration not specified)
https://nsf.gov/news/other_images/leafhopper_as.jpg (expiration not specified)
https://nsf.gov/news/other_images/photonic_hypercrystals_as.jpg (expiration not specified)
https://nsf.gov/news/other_images/transparent_electronics_as.jpg (expiration not specified)
https://nsf.gov/news/other_images/wifi_space_as.jpg (expiration not specified)
https://syndication.twitter.com/timeline/profile?c…nd=0.14881141134537756 (5 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://d15vqlr7iz6e8x.cloudfront.net/assets/legac…t_75_ffffff_40x100.png (60 minutes)
https://script.crazyegg.com/pages/scripts/0041/5508.js?415326 (60 minutes)
https://search.usa.gov/assets/sayt.css (60 minutes)
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https://search.usa.gov/assets/sayt_loader_libs.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://dap.digitalgov.gov/Universal-Federated-Ana…ma,mov,avi,mp3,mp4,csv
Optimize CSS Delivery of the following:
https://nsf.gov/css/bootstrap.min.css
https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css
https://nsf.gov/css/nsfgov.css
https://nsf.gov/css/nav-test.css
https://nsf.gov/css/style1-redesign.css
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https://nsf.gov/css/nsfgov.css
https://nsf.gov/css/nav-test.css
https://nsf.gov/css/style1-redesign.css
priority - 2Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 17.4KiB (29% reduction).
Minifying https://nsf.gov/ could save 17.4KiB (29% reduction).
priority - 2Minify 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 16.1KiB (26% reduction).
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Minifying https://nsf.gov/css/style1-redesign.css could save 1.3KiB (49% reduction).
Minifying https://nsf.gov/css/print.css could save 1.1KiB (27% reduction).
priority - 1Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 6.9KiB (22% reduction).
Minifying https://nsf.gov/js/webtrends.js could save 4.2KiB (20% reduction).
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nsf.gov Desktop Resource Breakdown
| Total Resources | 55 |
| Number of Hosts | 11 |
| Static Resources | 47 |
| JavaScript Resources | 13 |
| CSS Resources | 7 |
nsf.gov mobile page speed rank
Last tested: 2018-08-17
Mobile Speed
Bad
44/100
nsf.gov Mobile Speed Test Quick Summary
priority - 98Optimize images
Properly formatting and compressing images can save many bytes of data.
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Compressing https://nsf.gov/images/gallery_tabs_active.png could save 949B (84% reduction).
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priority - 26Leverage 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://syndication.twitter.com/settings?widget_or…tps%3A%2F%2Fnsf.gov%2F (10 minutes)
https://nsf.gov/css/main.min.css (30 minutes)
https://nsf.gov/css/print.min.css (30 minutes)
https://nsf.gov/images/arrow-next.png (30 minutes)
https://nsf.gov/images/arrow-prev.png (30 minutes)
https://nsf.gov/images/background.gif (30 minutes)
https://nsf.gov/images/caret-right.png (30 minutes)
https://nsf.gov/images/footer-background.gif (30 minutes)
https://nsf.gov/images/gallery_tabs_active.png (30 minutes)
https://nsf.gov/images/gallery_tabs_seperator.png (30 minutes)
https://nsf.gov/images/nsb-link.png (30 minutes)
https://nsf.gov/images/nsf_logo@2x.png (30 minutes)
https://nsf.gov/images/sprite.png (30 minutes)
https://nsf.gov/js/main.min.js (30 minutes)
https://nsf.gov/js/responsive-tabs.js (30 minutes)
https://nsf.gov/js/twitterFetcher_min.js (30 minutes)
https://nsf.gov/news/home_banner_css/funding_image…_HowItGetsThere.fw.png (30 minutes)
https://nsf.gov/news/home_banner_css/funding_images/NSF_HowItIsSpent.fw.png (30 minutes)
https://nsf.gov/news/home_banner_css/funding_image…hereItComesFrom.fw.png (30 minutes)
https://nsf.gov/news/home_banner_css/funding_images/NSF_WhereItGoes.fw.png (30 minutes)
https://nsf.gov/news/home_banner_css/slider_img/nanorebar_b.jpg (30 minutes)
https://nsf.gov/news/home_banner_css/slider_img/protons_b.jpg (30 minutes)
https://nsf.gov/news/home_banner_css/slider_img/reef_corals_b.jpg (30 minutes)
https://nsf.gov/news/home_banner_css/slider_img/softhardware_b.jpg (30 minutes)
https://nsf.gov/news/home_banner_css/slider_img/swsx_b.jpg (30 minutes)
https://nsf.gov/news/mmg/media/images/image_f.jpg (30 minutes)
https://nsf.gov/news/now_showing/images/dragonflytv_f.jpg (30 minutes)
https://nsf.gov/news/other_images/accelerator_beam_as.jpg (30 minutes)
https://nsf.gov/news/other_images/compound_ip6_as.jpg (30 minutes)
https://nsf.gov/news/other_images/encryption_software_as.jpg (30 minutes)
https://nsf.gov/news/other_images/mosquito_eyes_as.jpg (30 minutes)
https://nsf.gov/news/other_images/rita_parai_as.jpg (30 minutes)
https://nsf.gov/news/other_images/seedcoat_as.jpg (30 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://nsf.gov/css/main.min.css (30 minutes)
https://nsf.gov/css/print.min.css (30 minutes)
https://nsf.gov/images/arrow-next.png (30 minutes)
https://nsf.gov/images/arrow-prev.png (30 minutes)
https://nsf.gov/images/background.gif (30 minutes)
https://nsf.gov/images/caret-right.png (30 minutes)
https://nsf.gov/images/footer-background.gif (30 minutes)
https://nsf.gov/images/gallery_tabs_active.png (30 minutes)
https://nsf.gov/images/gallery_tabs_seperator.png (30 minutes)
https://nsf.gov/images/nsb-link.png (30 minutes)
https://nsf.gov/images/nsf_logo@2x.png (30 minutes)
https://nsf.gov/images/sprite.png (30 minutes)
https://nsf.gov/js/main.min.js (30 minutes)
https://nsf.gov/js/responsive-tabs.js (30 minutes)
https://nsf.gov/js/twitterFetcher_min.js (30 minutes)
https://nsf.gov/news/home_banner_css/funding_image…_HowItGetsThere.fw.png (30 minutes)
https://nsf.gov/news/home_banner_css/funding_images/NSF_HowItIsSpent.fw.png (30 minutes)
https://nsf.gov/news/home_banner_css/funding_image…hereItComesFrom.fw.png (30 minutes)
https://nsf.gov/news/home_banner_css/funding_images/NSF_WhereItGoes.fw.png (30 minutes)
https://nsf.gov/news/home_banner_css/slider_img/nanorebar_b.jpg (30 minutes)
https://nsf.gov/news/home_banner_css/slider_img/protons_b.jpg (30 minutes)
https://nsf.gov/news/home_banner_css/slider_img/reef_corals_b.jpg (30 minutes)
https://nsf.gov/news/home_banner_css/slider_img/softhardware_b.jpg (30 minutes)
https://nsf.gov/news/home_banner_css/slider_img/swsx_b.jpg (30 minutes)
https://nsf.gov/news/mmg/media/images/image_f.jpg (30 minutes)
https://nsf.gov/news/now_showing/images/dragonflytv_f.jpg (30 minutes)
https://nsf.gov/news/other_images/accelerator_beam_as.jpg (30 minutes)
https://nsf.gov/news/other_images/compound_ip6_as.jpg (30 minutes)
https://nsf.gov/news/other_images/encryption_software_as.jpg (30 minutes)
https://nsf.gov/news/other_images/mosquito_eyes_as.jpg (30 minutes)
https://nsf.gov/news/other_images/rita_parai_as.jpg (30 minutes)
https://nsf.gov/news/other_images/seedcoat_as.jpg (30 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
https://nsf.gov/css/main.min.css
priority - 1Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 14.2KiB (72% reduction).
Compressing https://dap.digitalgov.gov/Universal-Federated-Ana…ma,mov,avi,mp3,mp4,csv could save 13.2KiB (73% reduction).
Compressing https://nsf.gov/rss/operating-status.json?callback=callback&_=1534488795419 could save 979B (61% reduction).
Compressing https://nsf.gov/rss/operating-status.json?callback=callback&_=1534488795419 could save 979B (61% reduction).
priority - 0Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 2.9KiB (18% reduction).
Minifying https://nsf.gov/ could save 2.9KiB (18% reduction) after compression.
priority - 0Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 449B (26% reduction).
Minifying https://nsf.gov/js/responsive-tabs.js could save 449B (26% reduction) after compression.
nsf.gov Mobile Resource Breakdown
| Total Resources | 49 |
| Number of Hosts | 9 |
| Static Resources | 36 |
| JavaScript Resources | 10 |
| CSS Resources | 2 |
nsf.gov mobile page usability
Last tested: 2018-08-17
Mobile Usability
Good
97/100
nsf.gov Mobile Usability Test Quick Summary
priority - 3Size 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
<button id="searchbuttonmobile" type="button" name="searchbuttonmobile">search</button> is close to 1 other tap targets.The tap target
<a href="/naturaldisasters/">NSF Responses…ural Disasters</a> and 2 others are close to other tap targets.The tap target
<a href="/social/" class="seeall">See all NSF social media</a> is close to 1 other tap targets.The tap target
<a href="/social/" class="seeall">See all NSF social media</a> is close to 1 other tap targets.The tap target
<a href="/policies/">Website Policies</a> and 11 others are close to other tap targets.nsf.gov HTML validation
Errors
Internal encoding declaration “iso-8859-1” disagrees with the actual encoding of the document (“utf-8”).
Line: 94 Column: 1 - 27
"... <head> <meta charset="ISO-8859-1"> <meta..."
"... <head> <meta charset="ISO-8859-1"> <meta..."
Bad value “ISO-8859-1” for attribute “charset” on element “meta”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.
Line: 94 Column: 1 - 27
"... <head> <meta charset="ISO-8859-1"> <meta..."
"... <head> <meta charset="ISO-8859-1"> <meta..."
The element “button” must not appear as a descendant of the “a” element.
Line: 714 Column: 1 - 8
"...inos</h3> <button>Full S..." Line: 723 Column: 1 - 8
"...wing</h3> <button>Full S..." Line: 732 Column: 1 - 8
"...ells</h3> <button>Full S..." Line: 741 Column: 1 - 8
"...fire</h3> <button>Full S..." Line: 750 Column: 1 - 8
"...rved</h3> <button>Full S..." Line: 1169 Column: 65 - 110
"...view-all"><button class="btn btn-primary" role="button"> ..." Line: 1183 Column: 57 - 102
"...view-all"><button class="btn btn-primary" role="button">View A..."
"...inos</h3> <button>Full S..." Line: 723 Column: 1 - 8
"...wing</h3> <button>Full S..." Line: 732 Column: 1 - 8
"...ells</h3> <button>Full S..." Line: 741 Column: 1 - 8
"...fire</h3> <button>Full S..." Line: 750 Column: 1 - 8
"...rved</h3> <button>Full S..." Line: 1169 Column: 65 - 110
"...view-all"><button class="btn btn-primary" role="button"> ..." Line: 1183 Column: 57 - 102
"...view-all"><button class="btn btn-primary" role="button">View A..."
The “longdesc” attribute on the “img” element is obsolete. Use a regular “a” element to link to the description.
Line: 1115 Column: 72 - 218
"...="_blank"><img src="/news/home_banner_css/funding_images/NSF_WhereItGoes.fw.png" alt="Where it Goes" longdesc="/homepagefundingandsupport.jsp#where-it-goes"></a> <..." Line: 1121 Column: 76 - 233
"...="_blank"><img src="/news/home_banner_css/funding_images/NSF_HowItGetsThere.fw.png" alt="How it Gets There" longdesc="/homepagefundingandsupport.jsp#how-it-gets-there"></a> <..." Line: 1127 Column: 74 - 225
"...="_blank"><img src="/news/home_banner_css/funding_images/NSF_HowItIsSpent.fw.png" alt="How it is Spent" longdesc="/homepagefundingandsupport.jsp#how-it-is-spent"></a> <..." Line: 1133 Column: 78 - 241
"...="_blank"><img src="/news/home_banner_css/funding_images/NSF_WhereItComesFrom.fw.png" alt="Where it Comes From" longdesc="/homepagefundingandsupport.jsp#where-it-comes-from"></a> <..."
"...="_blank"><img src="/news/home_banner_css/funding_images/NSF_WhereItGoes.fw.png" alt="Where it Goes" longdesc="/homepagefundingandsupport.jsp#where-it-goes"></a> <..." Line: 1121 Column: 76 - 233
"...="_blank"><img src="/news/home_banner_css/funding_images/NSF_HowItGetsThere.fw.png" alt="How it Gets There" longdesc="/homepagefundingandsupport.jsp#how-it-gets-there"></a> <..." Line: 1127 Column: 74 - 225
"...="_blank"><img src="/news/home_banner_css/funding_images/NSF_HowItIsSpent.fw.png" alt="How it is Spent" longdesc="/homepagefundingandsupport.jsp#how-it-is-spent"></a> <..." Line: 1133 Column: 78 - 241
"...="_blank"><img src="/news/home_banner_css/funding_images/NSF_WhereItComesFrom.fw.png" alt="Where it Comes From" longdesc="/homepagefundingandsupport.jsp#where-it-comes-from"></a> <..."
The “for” attribute of the “label” element must refer to a non-hidden form control.
Line: 1377 Column: 25 - 52
"... <label for="search-program">or Sea..."
"... <label for="search-program">or Sea..."
Warnings
The “navigation” role is unnecessary for element “nav”.
Line: 461 Column: 17 - 104
"... <nav class="pull-right" id="utility-links" role="navigation" aria-label="Utility links"> ..."
"... <nav class="pull-right" id="utility-links" role="navigation" aria-label="Utility links"> ..."
The “button” role is unnecessary for element “button”.
Line: 1169 Column: 65 - 110
"...view-all"><button class="btn btn-primary" role="button"> ..." Line: 1183 Column: 57 - 102
"...view-all"><button class="btn btn-primary" role="button">View A..."
"...view-all"><button class="btn btn-primary" role="button"> ..." Line: 1183 Column: 57 - 102
"...view-all"><button class="btn btn-primary" role="button">View A..."
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nsf.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.
nsf.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.