nrao.edu Website Information
Daily Unique Visits: 166,871
Daily Page Views: 1,334,968
Income Per Day: $1,335
Estimated Value: $1,441,800
This website is located in United States and is using following IP address 192.33.115.11. See the complete list of popular websites hosted in United States.
nrao.edu is registered under .EDU top-level domain. Please check other sites in .EDU zone.
Website nrao.edu is using the following name servers:
- zia.aoc.nrao.edu
- cv3.cv.nrao.edu
- sadira.gb.nrao.edu
and is probably hosted by VIRGINIA-AS - University of Virginia, US. See the full list of other websites hosted by VIRGINIA-AS - University of Virginia, US.
The highest website nrao.edu position in Alexa rank database was 8682 and the lowest rank position was 9237. Current position of nrao.edu in Alexa rank database is 9132.
Desktop speed score of nrao.edu (47/100) is better than the results of 20.85% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of nrao.edu (96/100) is better than the results of 46.59% of other sites and means that the page is mobile-friendly.
Mobile speed score of nrao.edu (34/100) is better than the results of 12.98% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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nrao.edu 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.
nrao.edu whois
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This Registry database contains ONLY .EDU domains.
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by EDUCAUSE for information purposes in order to
assist in the process of obtaining information about
or related to .edu domain registration records.
The EDUCAUSE Whois database is authoritative for the
.EDU domain.
A Web interface for the .EDU EDUCAUSE Whois Server is
available at: http://whois.educause.edu
By submitting a Whois query, you agree that this information
will not be used to allow, enable, or otherwise support
the transmission of unsolicited commercial advertising or
solicitations via e-mail. The use of electronic processes to
harvest information from this server is generally prohibited
except as reasonably necessary to register or modify .edu
domain names.
-------------------------------------------------------------
Domain Name: NRAO.EDU
Registrant:
National Radio Astronomy Observatory
520 Edgemont Road
Charlottesville, VA 22903-2475
USA
Administrative Contact:
David Halstead
National Radio Astronomy Observatory
520 Edgemont Road
Charlottesville, VA 22903-2475
USA
+1.4342960211
admin@nrao.edu
Technical Contact:
Tech Admin
National Radio Astronomy Observatory
520 Edgemont Road
Charlottesville, VA 22903-2475
USA
+1.4342960211
tech@nrao.edu
Name Servers:
SADIRA.GB.NRAO.EDU
ZIA.AOC.NRAO.EDU
CV3.CV.NRAO.EDU
Domain record activated: 17-Dec-1987
Domain record last updated: 11-Aug-2023
Domain expires: 31-Jul-2026
The data in the EDUCAUSE Whois database is provided
by EDUCAUSE for information purposes in order to
assist in the process of obtaining information about
or related to .edu domain registration records.
The EDUCAUSE Whois database is authoritative for the
.EDU domain.
A Web interface for the .EDU EDUCAUSE Whois Server is
available at: http://whois.educause.edu
By submitting a Whois query, you agree that this information
will not be used to allow, enable, or otherwise support
the transmission of unsolicited commercial advertising or
solicitations via e-mail. The use of electronic processes to
harvest information from this server is generally prohibited
except as reasonably necessary to register or modify .edu
domain names.
-------------------------------------------------------------
Domain Name: NRAO.EDU
Registrant:
National Radio Astronomy Observatory
520 Edgemont Road
Charlottesville, VA 22903-2475
USA
Administrative Contact:
David Halstead
National Radio Astronomy Observatory
520 Edgemont Road
Charlottesville, VA 22903-2475
USA
+1.4342960211
admin@nrao.edu
Technical Contact:
Tech Admin
National Radio Astronomy Observatory
520 Edgemont Road
Charlottesville, VA 22903-2475
USA
+1.4342960211
tech@nrao.edu
Name Servers:
SADIRA.GB.NRAO.EDU
ZIA.AOC.NRAO.EDU
CV3.CV.NRAO.EDU
Domain record activated: 17-Dec-1987
Domain record last updated: 11-Aug-2023
Domain expires: 31-Jul-2026
nrao.edu server information
Servers Location
nrao.edu desktop page speed rank
Last tested: 2017-05-31
Desktop Speed
Bad
47/100
nrao.edu Desktop Speed Test Quick Summary
priority - 43Enable 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 422.1KiB (74% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/css/style.css?ver=4.7.5 could save 110.2KiB (82% reduction).
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Compressing https://public.nrao.edu/ could save 28.2KiB (75% reduction).
Compressing https://public.nrao.edu/wp-admin/js/iris.min.js?ver=4.7.5 could save 15.2KiB (65% reduction).
Compressing https://public.nrao.edu/wp-includes/js/jquery/ui/d…able.min.js?ver=1.11.4 could save 13.6KiB (73% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/js/…-popup.js?ver=20160511 could save 12.6KiB (63% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/css…fontsKit.css?ver=4.7.5 could save 12.4KiB (92% reduction).
Compressing https://public.nrao.edu/wp-content/plugins/contact…/js/scripts.js?ver=4.7 could save 9.8KiB (73% reduction).
Compressing https://public.nrao.edu/wp-content/plugins/contact…?ver=3.51.0-2014.06.20 could save 9.2KiB (61% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/js/main.js?ver=20160511 could save 8.6KiB (78% reduction).
Compressing https://public.nrao.edu/wp-includes/js/jquery/ui/slider.min.js?ver=1.11.4 could save 7.7KiB (71% reduction).
Compressing https://public.nrao.edu/wp-includes/js/wp-emoji-release.min.js?ver=4.7.5 could save 7KiB (62% reduction).
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Compressing https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css could save 2.3KiB (72% reduction).
Compressing https://public.nrao.edu/wp-includes/js/jquery/ui/core.min.js?ver=1.11.4 could save 2.1KiB (54% reduction).
Compressing https://public.nrao.edu/wp-includes/js/jquery/ui/mouse.min.js?ver=1.11.4 could save 2.1KiB (67% reduction).
Compressing https://public.nrao.edu/wp-admin/js/color-picker.min.js?ver=4.7.5 could save 1.9KiB (63% reduction).
Compressing https://public.nrao.edu/wp-admin/css/color-picker.min.css?ver=4.7.5 could save 1.4KiB (66% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/js/…gation.js?ver=20151215 could save 1.4KiB (61% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.css could save 1.1KiB (67% reduction).
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priority - 24Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking script resources and 9 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://public.nrao.edu/wp-includes/js/jquery/jquery.js?ver=1.12.4
https://public.nrao.edu/wp-includes/js/jquery/jque…grate.min.js?ver=1.4.1
https://ws.sharethis.com/button/st_insights.js?pub…e6&product=simpleshare
https://ajax.googleapis.com/ajax/libs/jqueryui/1.1…y-ui.min.js?ver=1.11.4
https://public.nrao.edu/wp-content/themes/nrao/js/tablesorter.js?ver=4.7.5
https://use.fontawesome.com/8ebef3fc7f.js?ver=4.7.5
https://public.nrao.edu/wp-includes/js/jquery/jque…grate.min.js?ver=1.4.1
https://ws.sharethis.com/button/st_insights.js?pub…e6&product=simpleshare
https://ajax.googleapis.com/ajax/libs/jqueryui/1.1…y-ui.min.js?ver=1.11.4
https://public.nrao.edu/wp-content/themes/nrao/js/tablesorter.js?ver=4.7.5
https://use.fontawesome.com/8ebef3fc7f.js?ver=4.7.5
Optimize CSS Delivery of the following:
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https://public.nrao.edu/wp-content/themes/nrao/css…fontsKit.css?ver=4.7.5
https://public.nrao.edu/wp-content/themes/nrao/css/style.css?ver=4.7.5
https://fonts.googleapis.com/css?family=Montserrat…%27%20type=%27text/css
https://public.nrao.edu/wp-admin/css/color-picker.min.css?ver=4.7.5
https://use.fontawesome.com/8ebef3fc7f.css
https://use.fontawesome.com/releases/v4.7.0/css/font-awesome-css.min.css
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.css
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css
https://public.nrao.edu/wp-content/themes/nrao/css…fontsKit.css?ver=4.7.5
https://public.nrao.edu/wp-content/themes/nrao/css/style.css?ver=4.7.5
https://fonts.googleapis.com/css?family=Montserrat…%27%20type=%27text/css
https://public.nrao.edu/wp-admin/css/color-picker.min.css?ver=4.7.5
https://use.fontawesome.com/8ebef3fc7f.css
https://use.fontawesome.com/releases/v4.7.0/css/font-awesome-css.min.css
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.css
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css
priority - 18Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 177.3KiB (37% reduction).
Compressing and resizing https://public.nrao.edu/wp-content/uploads/2017/03/M51_300dpi-1170x600.jpg could save 70.7KiB (73% reduction).
Compressing https://public.nrao.edu/wp-content/uploads/2016/07…0.18.16-AM-585x300.png could save 28.7KiB (14% reduction).
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Compressing https://pbs.twimg.com/profile_images/806581827192418304/g7Gr7n6G_normal.jpg could save 970B (51% reduction).
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Compressing https://public.nrao.edu/wp-content/uploads/2017/05/nrao17cb20a-585x300.jpg could save 6.2KiB (13% reduction).
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Compressing https://pbs.twimg.com/media/DA2wx8RXUAAhFyf.jpg:small could save 3.1KiB (15% reduction).
Compressing and resizing https://public.nrao.edu/wp-content/themes/nrao/img/logoNSF.gif could save 2.5KiB (21% reduction).
Compressing https://pbs.twimg.com/profile_images/806581827192418304/g7Gr7n6G_normal.jpg could save 970B (51% reduction).
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priority - 16Leverage 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://public.nrao.edu/wp-content/themes/nrao/css…fonts/2692AF_1E_0.woff (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/arrow-left.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/arrow-right.png (expiration not specified)
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https://public.nrao.edu/wp-content/themes/nrao/img/circleslight.svg (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/logoAUI.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/logoNRAO.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/logoNSF.gif (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/logotext.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/swoosh-pale.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/ajax-loader.gif (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/fonts/slick.woff (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.css (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.js (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slickslider.js (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/05/News_VLA_2.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/05/SpecFeat_RoleMod.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/05/crabhero.jpg (expiration not specified)
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https://ws.sharethis.com/button/p.js (expiration not specified)
https://cdn.syndication.twimg.com/timeline/profile…528&with_replies=false (5 minutes)
https://connect.facebook.net/en_US/sdk.js (20 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://public.nrao.edu/wp-content/themes/nrao/img/arrow-left.png (expiration not specified)
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https://public.nrao.edu/wp-content/themes/nrao/img/logotext.png (expiration not specified)
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https://public.nrao.edu/wp-content/themes/nrao/inc/slick/ajax-loader.gif (expiration not specified)
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https://public.nrao.edu/wp-content/uploads/2016/05/News_VLA_2.png (expiration not specified)
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https://public.nrao.edu/wp-content/uploads/2016/05/crabhero.jpg (expiration not specified)
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https://public.nrao.edu/wp-content/uploads/2016/10…1.03.51-AM-585x300.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/10/VLA-585x300.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/12…9.45.56-AM-585x300.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2017/03/M51_300dpi-1170x600.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2017/05/nrao17cb20a-585x300.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2017/05/nrao17df01f-585x300.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2017/05/nrao17df04-a-585x300.jpg (expiration not specified)
https://ws.sharethis.com/button/p.js (expiration not specified)
https://cdn.syndication.twimg.com/timeline/profile…528&with_replies=false (5 minutes)
https://connect.facebook.net/en_US/sdk.js (20 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 9Avoid 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://nrao.edu/
https://www.nrao.edu/
https://public.nrao.edu/
https://www.nrao.edu/
https://public.nrao.edu/
priority - 7Minify 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 63.5KiB (43% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.js could save 32.7KiB (40% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/js/tablesorter.js?ver=4.7.5 could save 23.8KiB (59% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/js/main.js?ver=20160511 could save 3.1KiB (29% reduction).
Minifying https://public.nrao.edu/wp-content/plugins/contact…/js/scripts.js?ver=4.7 could save 3KiB (23% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/js/…gation.js?ver=20151215 could save 903B (40% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/js/tablesorter.js?ver=4.7.5 could save 23.8KiB (59% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/js/main.js?ver=20160511 could save 3.1KiB (29% reduction).
Minifying https://public.nrao.edu/wp-content/plugins/contact…/js/scripts.js?ver=4.7 could save 3KiB (23% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/js/…gation.js?ver=20151215 could save 903B (40% reduction).
priority - 4Minify 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 33.8KiB (25% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/css/style.css?ver=4.7.5 could save 33.1KiB (25% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css could save 688B (21% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css could save 688B (21% reduction).
priority - 3Reduce server response time
priority - 1Minify 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 6.8KiB (18% reduction).
Minifying https://public.nrao.edu/ could save 6.1KiB (17% reduction).
Minifying https://t.sharethis.com/1/d/t.dhj?rnd=149627523297…10&dmn=public.nrao.edu could save 760B (50% reduction) after compression.
Minifying https://t.sharethis.com/1/d/t.dhj?rnd=149627523297…10&dmn=public.nrao.edu could save 760B (50% reduction) after compression.
nrao.edu Desktop Resource Breakdown
| Total Resources | 131 |
| Number of Hosts | 35 |
| Static Resources | 63 |
| JavaScript Resources | 34 |
| CSS Resources | 11 |
nrao.edu mobile page speed rank
Last tested: 2017-05-30
Mobile Speed
Bad
34/100
nrao.edu Mobile Speed Test Quick Summary
priority - 96Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking script resources and 8 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://public.nrao.edu/wp-includes/js/jquery/jquery.js?ver=1.12.4
https://public.nrao.edu/wp-includes/js/jquery/jque…grate.min.js?ver=1.4.1
https://ws.sharethis.com/button/st_insights.js?pub…e6&product=simpleshare
https://ajax.googleapis.com/ajax/libs/jqueryui/1.1…y-ui.min.js?ver=1.11.4
https://public.nrao.edu/wp-content/themes/nrao/js/tablesorter.js?ver=4.7.5
https://use.fontawesome.com/8ebef3fc7f.js?ver=4.7.5
https://public.nrao.edu/wp-includes/js/jquery/jque…grate.min.js?ver=1.4.1
https://ws.sharethis.com/button/st_insights.js?pub…e6&product=simpleshare
https://ajax.googleapis.com/ajax/libs/jqueryui/1.1…y-ui.min.js?ver=1.11.4
https://public.nrao.edu/wp-content/themes/nrao/js/tablesorter.js?ver=4.7.5
https://use.fontawesome.com/8ebef3fc7f.js?ver=4.7.5
Optimize CSS Delivery of the following:
https://public.nrao.edu/wp-content/plugins/contact…css/styles.css?ver=4.7
https://public.nrao.edu/wp-content/themes/nrao/css…fontsKit.css?ver=4.7.5
https://public.nrao.edu/wp-content/themes/nrao/css/style.css?ver=4.7.5
https://fonts.googleapis.com/css?family=Montserrat…%27%20type=%27text/css
https://use.fontawesome.com/8ebef3fc7f.css
https://use.fontawesome.com/releases/v4.7.0/css/font-awesome-css.min.css
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.css
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css
https://public.nrao.edu/wp-content/themes/nrao/css…fontsKit.css?ver=4.7.5
https://public.nrao.edu/wp-content/themes/nrao/css/style.css?ver=4.7.5
https://fonts.googleapis.com/css?family=Montserrat…%27%20type=%27text/css
https://use.fontawesome.com/8ebef3fc7f.css
https://use.fontawesome.com/releases/v4.7.0/css/font-awesome-css.min.css
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.css
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css
priority - 38Enable 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 367.7KiB (75% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/css/style.css?ver=4.7.5 could save 105.6KiB (82% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.js could save 68.3KiB (82% reduction).
Compressing https://public.nrao.edu/wp-includes/js/jquery/jquery.js?ver=1.12.4 could save 61.9KiB (65% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/js/tablesorter.js?ver=4.7.5 could save 31.9KiB (79% reduction).
Compressing https://public.nrao.edu/ could save 27.1KiB (74% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/js/…-popup.js?ver=20160511 could save 12.6KiB (63% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/css…fontsKit.css?ver=4.7.5 could save 12.4KiB (92% reduction).
Compressing https://public.nrao.edu/wp-content/plugins/contact…/js/scripts.js?ver=4.7 could save 9.8KiB (73% reduction).
Compressing https://public.nrao.edu/wp-content/plugins/contact…?ver=3.51.0-2014.06.20 could save 9.2KiB (61% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/js/main.js?ver=20160511 could save 8.6KiB (78% reduction).
Compressing https://public.nrao.edu/wp-includes/js/wp-emoji-release.min.js?ver=4.7.5 could save 7KiB (62% reduction).
Compressing https://public.nrao.edu/wp-includes/js/jquery/jque…grate.min.js?ver=1.4.1 could save 5.9KiB (60% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css could save 2.3KiB (72% reduction).
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Compressing https://public.nrao.edu/wp-content/plugins/contact…css/styles.css?ver=4.7 could save 972B (60% reduction).
Compressing https://public.nrao.edu/wp-includes/js/wp-embed.min.js?ver=4.7.5 could save 647B (47% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.js could save 68.3KiB (82% reduction).
Compressing https://public.nrao.edu/wp-includes/js/jquery/jquery.js?ver=1.12.4 could save 61.9KiB (65% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/js/tablesorter.js?ver=4.7.5 could save 31.9KiB (79% reduction).
Compressing https://public.nrao.edu/ could save 27.1KiB (74% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/js/…-popup.js?ver=20160511 could save 12.6KiB (63% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/css…fontsKit.css?ver=4.7.5 could save 12.4KiB (92% reduction).
Compressing https://public.nrao.edu/wp-content/plugins/contact…/js/scripts.js?ver=4.7 could save 9.8KiB (73% reduction).
Compressing https://public.nrao.edu/wp-content/plugins/contact…?ver=3.51.0-2014.06.20 could save 9.2KiB (61% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/js/main.js?ver=20160511 could save 8.6KiB (78% reduction).
Compressing https://public.nrao.edu/wp-includes/js/wp-emoji-release.min.js?ver=4.7.5 could save 7KiB (62% reduction).
Compressing https://public.nrao.edu/wp-includes/js/jquery/jque…grate.min.js?ver=1.4.1 could save 5.9KiB (60% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css could save 2.3KiB (72% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/js/…gation.js?ver=20151215 could save 1.4KiB (61% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.css could save 1.1KiB (67% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/inc/slickslider.js could save 980B (64% reduction).
Compressing https://public.nrao.edu/wp-content/plugins/contact…css/styles.css?ver=4.7 could save 972B (60% reduction).
Compressing https://public.nrao.edu/wp-includes/js/wp-embed.min.js?ver=4.7.5 could save 647B (47% reduction).
priority - 34Avoid 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://nrao.edu/
https://www.nrao.edu/
https://public.nrao.edu/
https://www.nrao.edu/
https://public.nrao.edu/
priority - 24Leverage 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://public.nrao.edu/wp-content/themes/nrao/css…fonts/2692AF_1E_0.woff (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/arrow-left.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/arrow-right.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/bullet.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/logoAUI.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/logoNRAO.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/logoNSF.gif (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/logotext.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/swoosh-pale.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/ajax-loader.gif (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/fonts/slick.woff (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.css (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.js (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slickslider.js (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/05/News_VLA_2.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/05…cFeat_MWE_SolarSys.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/05/crabhero.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/07….18.16-AM-1170x600.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/10/ALMA-1170x600.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/10…1.03.51-AM-585x300.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/10/VLA-1170x600.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/12…9.45.56-AM-585x300.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2017/03/M51_300dpi-1170x600.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2017/05/nrao17cb20a-1170x600.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2017/05/nrao17df01f-1170x600.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2017/05…o17df04-a-1170x600.jpg (expiration not specified)
https://ws.sharethis.com/button/p.js (expiration not specified)
https://cdn.syndication.twimg.com/timeline/profile…436&with_replies=false (5 minutes)
https://connect.facebook.net/en_US/sdk.js (20 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://public.nrao.edu/wp-content/themes/nrao/img/arrow-left.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/arrow-right.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/bullet.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/logoAUI.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/logoNRAO.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/logoNSF.gif (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/logotext.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/img/swoosh-pale.png (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/ajax-loader.gif (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/fonts/slick.woff (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.css (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.js (expiration not specified)
https://public.nrao.edu/wp-content/themes/nrao/inc/slickslider.js (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/05/News_VLA_2.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/05…cFeat_MWE_SolarSys.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/05/crabhero.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/07….18.16-AM-1170x600.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/10/ALMA-1170x600.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/10…1.03.51-AM-585x300.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/10/VLA-1170x600.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2016/12…9.45.56-AM-585x300.png (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2017/03/M51_300dpi-1170x600.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2017/05/nrao17cb20a-1170x600.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2017/05/nrao17df01f-1170x600.jpg (expiration not specified)
https://public.nrao.edu/wp-content/uploads/2017/05…o17df04-a-1170x600.jpg (expiration not specified)
https://ws.sharethis.com/button/p.js (expiration not specified)
https://cdn.syndication.twimg.com/timeline/profile…436&with_replies=false (5 minutes)
https://connect.facebook.net/en_US/sdk.js (20 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 7Minify 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 63.5KiB (43% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick.js could save 32.7KiB (40% reduction).
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Minifying https://public.nrao.edu/wp-content/themes/nrao/js/main.js?ver=20160511 could save 3.1KiB (29% reduction).
Minifying https://public.nrao.edu/wp-content/plugins/contact…/js/scripts.js?ver=4.7 could save 3KiB (23% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/js/…gation.js?ver=20151215 could save 903B (40% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/js/tablesorter.js?ver=4.7.5 could save 23.8KiB (59% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/js/main.js?ver=20160511 could save 3.1KiB (29% reduction).
Minifying https://public.nrao.edu/wp-content/plugins/contact…/js/scripts.js?ver=4.7 could save 3KiB (23% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/js/…gation.js?ver=20151215 could save 903B (40% reduction).
priority - 7Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 63.5KiB (82% reduction).
Compressing https://pbs.twimg.com/profile_images/1119692209/NRAO_logosquare_bigger.jpg could save 23.4KiB (91% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/img/logoNRAO.png could save 18.4KiB (86% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/img/logoAUI.png could save 17.7KiB (90% reduction).
Compressing https://pbs.twimg.com/profile_images/806581827192418304/g7Gr7n6G_bigger.jpg could save 1KiB (42% reduction).
Compressing https://pbs.twimg.com/profile_images/751308808442437632/TcVUCFPR_bigger.jpg could save 1KiB (34% reduction).
Compressing https://pbs.twimg.com/profile_images/841331162731667459/K-ljec8v_bigger.jpg could save 953B (40% reduction).
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Compressing https://public.nrao.edu/wp-content/themes/nrao/img/logoNRAO.png could save 18.4KiB (86% reduction).
Compressing https://public.nrao.edu/wp-content/themes/nrao/img/logoAUI.png could save 17.7KiB (90% reduction).
Compressing https://pbs.twimg.com/profile_images/806581827192418304/g7Gr7n6G_bigger.jpg could save 1KiB (42% reduction).
Compressing https://pbs.twimg.com/profile_images/751308808442437632/TcVUCFPR_bigger.jpg could save 1KiB (34% reduction).
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priority - 4Reduce server response time
priority - 3Minify 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 33KiB (26% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/css/style.css?ver=4.7.5 could save 32.4KiB (26% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css could save 688B (21% reduction).
Minifying https://public.nrao.edu/wp-content/themes/nrao/inc/slick/slick-theme.css could save 688B (21% reduction).
priority - 1Minify 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 6.6KiB (18% reduction).
Minifying https://public.nrao.edu/ could save 5.9KiB (17% reduction).
Minifying https://t.sharethis.com/1/d/t.dhj?rnd=149619301973…10&dmn=public.nrao.edu could save 759B (50% reduction) after compression.
Minifying https://t.sharethis.com/1/d/t.dhj?rnd=149619301973…10&dmn=public.nrao.edu could save 759B (50% reduction) after compression.
nrao.edu Mobile Resource Breakdown
| Total Resources | 121 |
| Number of Hosts | 35 |
| Static Resources | 62 |
| JavaScript Resources | 26 |
| CSS Resources | 10 |
nrao.edu mobile page usability
Last tested: 2017-05-30
Mobile Usability
Good
96/100
nrao.edu 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
<a href="https://public…dio-astronomy/">Learn more abo…dio astronomy!</a> is close to 2 other tap targets.The tap target
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<ul class="slick-dots">123</ul> and 8 others are close to other tap targets.The tap target
<li id="slick-slide012" class="slick-active">1</li> and 2 others are close to other tap targets.The tap target
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Errors
Bad value “https://www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).
Line: 2 Column: 16 - 164
"...TYPE html> <html lang="en-US" prefix="og: http://ogp.me/ns#" xmlns="https://www.w3.org/1999/xhtml" xmlns:og="https://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <hea..."
"...TYPE html> <html lang="en-US" prefix="og: http://ogp.me/ns#" xmlns="https://www.w3.org/1999/xhtml" xmlns:og="https://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <hea..."
Attribute “xmlns:og” not allowed here.
Line: 2 Column: 16 - 164
"...TYPE html> <html lang="en-US" prefix="og: http://ogp.me/ns#" xmlns="https://www.w3.org/1999/xhtml" xmlns:og="https://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <hea..."
"...TYPE html> <html lang="en-US" prefix="og: http://ogp.me/ns#" xmlns="https://www.w3.org/1999/xhtml" xmlns:og="https://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <hea..."
Attribute “xmlns:fb” not allowed here.
Line: 2 Column: 16 - 164
"...TYPE html> <html lang="en-US" prefix="og: http://ogp.me/ns#" xmlns="https://www.w3.org/1999/xhtml" xmlns:og="https://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <hea..."
"...TYPE html> <html lang="en-US" prefix="og: http://ogp.me/ns#" xmlns="https://www.w3.org/1999/xhtml" xmlns:og="https://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <hea..."
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Line: 82 Column: 1 - 73
"...</script> <link rel='https://api.w.org/' href='https://public.nrao.edu/wp-json/' /> <link..."
"...</script> <link rel='https://api.w.org/' href='https://public.nrao.edu/wp-json/' /> <link..."
Bad value “https://theeventscalendar.com/” for attribute “rel” on element “link”: The string “https://theeventscalendar.com/” is not a registered keyword.
Line: 141 Column: 105 - 205
"...nrao.edu"><link rel="https://theeventscalendar.com/" href="https://public.nrao.edu/wp-json/tribe/events/v1/" /> <sty..."
"...nrao.edu"><link rel="https://theeventscalendar.com/" href="https://public.nrao.edu/wp-json/tribe/events/v1/" /> <sty..."
Duplicate ID “home-news-link”.
Line: 393 Column: 6 - 30
"... <div id="home-news-link"> ..." Line: 477 Column: 6 - 30
"...ns"> <div id="home-news-link"> ..."
"... <div id="home-news-link"> ..." Line: 477 Column: 6 - 30
"...ns"> <div id="home-news-link"> ..."
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Line: 411 Column: 7 - 13
"...p"> <style> ..."
"...p"> <style> ..."
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Line: 540 Column: 9 - 85
"...> <img src="https://public.nrao.edu/wp-content/themes/nrao/img/logoNRAO.png" /> ..." Line: 549 Column: 10 - 110
"... <img src="https://public.nrao.edu/wp-content/themes/nrao/img/logoNSF.gif" style="max-width: 70px;" /> ..." Line: 559 Column: 10 - 85
"... <img src="https://public.nrao.edu/wp-content/themes/nrao/img/logoAUI.png" /> ..." Line: 572 Column: 4 - 83
"...ttom"> <img src="https://public.nrao.edu/wp-content/themes/nrao/img/swoosh-pale.png" /> <d..."
"...> <img src="https://public.nrao.edu/wp-content/themes/nrao/img/logoNRAO.png" /> ..." Line: 549 Column: 10 - 110
"... <img src="https://public.nrao.edu/wp-content/themes/nrao/img/logoNSF.gif" style="max-width: 70px;" /> ..." Line: 559 Column: 10 - 85
"... <img src="https://public.nrao.edu/wp-content/themes/nrao/img/logoAUI.png" /> ..." Line: 572 Column: 4 - 83
"...ttom"> <img src="https://public.nrao.edu/wp-content/themes/nrao/img/swoosh-pale.png" /> <d..."
Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).
Line: 593 Column: - 10
"...><br> <!--<a href="/activ..."
"...><br> <!--<a href="/activ..."
Warnings
Attribute “xmlns” is not serializable as XML 1.0.
Line: 2 Column: 16 - 164
"...TYPE html> <html lang="en-US" prefix="og: http://ogp.me/ns#" xmlns="https://www.w3.org/1999/xhtml" xmlns:og="https://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <hea..."
"...TYPE html> <html lang="en-US" prefix="og: http://ogp.me/ns#" xmlns="https://www.w3.org/1999/xhtml" xmlns:og="https://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <hea..."
Attribute with the local name “xmlns:og” is not serializable as XML 1.0.
Line: 2 Column: 16 - 164
"...TYPE html> <html lang="en-US" prefix="og: http://ogp.me/ns#" xmlns="https://www.w3.org/1999/xhtml" xmlns:og="https://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <hea..."
"...TYPE html> <html lang="en-US" prefix="og: http://ogp.me/ns#" xmlns="https://www.w3.org/1999/xhtml" xmlns:og="https://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <hea..."
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
Line: 2 Column: 16 - 164
"...TYPE html> <html lang="en-US" prefix="og: http://ogp.me/ns#" xmlns="https://www.w3.org/1999/xhtml" xmlns:og="https://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <hea..."
"...TYPE html> <html lang="en-US" prefix="og: http://ogp.me/ns#" xmlns="https://www.w3.org/1999/xhtml" xmlns:og="https://ogp.me/ns#" xmlns:fb="https://www.facebook.com/2008/fbml"> <hea..."
The “banner” role is unnecessary for element “header”.
Line: 181 Column: 2 - 18
"...</div> <header id="masthead" class="site-header header-shadow " role="banner"> <d..."
"...</div> <header id="masthead" class="site-header header-shadow " role="banner"> <d..."
The “navigation” role is unnecessary for element “nav”.
Line: 197 Column: 4 - 79
"...g --> <nav id="primary-site-navigation" class="main-navigation" role="navigation"> <..."
"...g --> <nav id="primary-site-navigation" class="main-navigation" role="navigation"> <..."
The “main” role is unnecessary for element “main”.
Line: 242 Column: 3 - 48
"...-area"> <main id="main" class="site-main" role="main"> ..."
"...-area"> <main id="main" class="site-main" role="main"> ..."
The first occurrence of ID “home-news-link” was here.
Line: 350 Column: 7 - 31
"...s"> <div id="home-news-link"> ..." Line: 350 Column: 7 - 31
"...s"> <div id="home-news-link"> ..."
"...s"> <div id="home-news-link"> ..." Line: 350 Column: 7 - 31
"...s"> <div id="home-news-link"> ..."
The “contentinfo” role is unnecessary for element “footer”.
Line: 501 Column: 2 - 62
"...ent --> <footer id="colophon" class="site-footer" role="contentinfo"> <di..."
"...ent --> <footer id="colophon" class="site-footer" role="contentinfo"> <di..."
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Line: 593 Column: - 10
"...><br> <!--<a href="/activ..."
"...><br> <!--<a href="/activ..."
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nrao.edu 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.
nrao.edu 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.