jhuapl.edu Website Information
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The highest website jhuapl.edu position in Alexa rank database was 6241 and the lowest rank position was 6569. Current position of jhuapl.edu in Alexa rank database is 6528.
Desktop speed score of jhuapl.edu (0/100) shows that the page desktop performance can be improved.
Mobile usability score of jhuapl.edu (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.
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-------------------------------------------------------------
Domain Name: JHUAPL.EDU
Registrant:
Johns Hopkins University Applied Physics Laboratory
11100 Johns Hopkins Road
Laurel, MD 20723-6099
USA
Administrative Contact:
Domain Admin
Johns Hopkins University Applied Physics Laboratory
11100 Johns Hopkins Road
Laurel, MD 20723-6099
USA
+1.2402286016
nic-contact@jhuapl.edu
Technical Contact:
Johns Hopkins University Applied Physics Laboratory
11100 Johns Hopkins Road
Laurel, MD 20723-6099
USA
+1.2402286016
nic-contact@jhuapl.edu
Name Servers:
A12-66.AKAM.NET
A7-66.AKAM.NET
A2-67.AKAM.NET
A5-65.AKAM.NET
A24-64.AKAM.NET
A1-121.AKAM.NET
Domain record activated: 14-Oct-1987
Domain record last updated: 11-Jun-2024
Domain expires: 31-Jul-2025
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: JHUAPL.EDU
Registrant:
Johns Hopkins University Applied Physics Laboratory
11100 Johns Hopkins Road
Laurel, MD 20723-6099
USA
Administrative Contact:
Domain Admin
Johns Hopkins University Applied Physics Laboratory
11100 Johns Hopkins Road
Laurel, MD 20723-6099
USA
+1.2402286016
nic-contact@jhuapl.edu
Technical Contact:
Johns Hopkins University Applied Physics Laboratory
11100 Johns Hopkins Road
Laurel, MD 20723-6099
USA
+1.2402286016
nic-contact@jhuapl.edu
Name Servers:
A12-66.AKAM.NET
A7-66.AKAM.NET
A2-67.AKAM.NET
A5-65.AKAM.NET
A24-64.AKAM.NET
A1-121.AKAM.NET
Domain record activated: 14-Oct-1987
Domain record last updated: 11-Jun-2024
Domain expires: 31-Jul-2025
jhuapl.edu server information
Servers Location
jhuapl.edu desktop page speed rank
Last tested: 2019-12-10
Desktop Speed
Bad
0/100
jhuapl.edu Desktop Speed Test Quick Summary
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priority - 27Leverage browser caching
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priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 4 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.
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https://www.jhuapl.edu/bundles/jquery?v=NNvRrt_4VT…a7YmcdZ5YTm3OVRV8yIMU1
https://www.jhuapl.edu/bundles/bootstrap?v=lescQEu…UOSyTDIg0Kk9zHDX55GCw1
https://addsearch.com/js/?key=9437f110b5194c83b62d7cb4fda104fa
Optimize CSS Delivery of the following:
https://www.jhuapl.edu/Content/css/bootstrap.min.css
https://www.jhuapl.edu/Content/css/jquery.bsPhotoGallery.css
https://www.jhuapl.edu/Content/css/apl-theme.css
https://www.jhuapl.edu/Content/css/bootstrap.min.css
https://www.jhuapl.edu/Content/css/font-awesome.min.css
https://www.jhuapl.edu/Content/css/font-awesome.min.css
https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.css
https://www.jhuapl.edu/Content/css/jquery.bsPhotoGallery.css
https://www.jhuapl.edu/Content/css/apl-theme.css
https://www.jhuapl.edu/Content/css/bootstrap.min.css
https://www.jhuapl.edu/Content/css/font-awesome.min.css
https://www.jhuapl.edu/Content/css/font-awesome.min.css
https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.css
priority - 7Avoid 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://jhuapl.edu/
http://www.jhuapl.edu/
https://www.jhuapl.edu/
http://www.jhuapl.edu/
https://www.jhuapl.edu/
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 4.2KiB (50% reduction).
Minifying https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.js could save 4.2KiB (50% reduction).
priority - 0Minify 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 4.2KiB (29% reduction).
Minifying https://www.jhuapl.edu/Content/css/apl-theme.css could save 3.8KiB (29% reduction) after compression.
Minifying https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.css could save 451B (27% reduction).
Minifying https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.css could save 451B (27% reduction).
priority - 0Reduce server response time
In our test, your server responded in 0.21 seconds.
jhuapl.edu Desktop Resource Breakdown
| Total Resources | 71 |
| Number of Hosts | 6 |
| Static Resources | 57 |
| JavaScript Resources | 9 |
| CSS Resources | 5 |
jhuapl.edu mobile page speed rank
Last tested: 2019-12-09
Mobile Speed
Bad
0/100
jhuapl.edu Mobile Speed Test Quick Summary
priority - 1053Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 10MiB (61% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/19-01404-5D1_1409.jpg could save 6.1MiB (58% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191111_image1_med.jpg could save 316.4KiB (77% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191113_image1_med.jpg could save 285.5KiB (75% reduction).
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Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191113c_image1_med.jpg could save 247.6KiB (78% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191126_image1_med.jpg could save 238.1KiB (74% reduction).
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Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191115_image1_med.jpg could save 190.6KiB (77% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20190927_image1_med.jpg could save 181.4KiB (77% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191204_image1_med.jpg could save 181.3KiB (85% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20190926_image1_med.jpg could save 179KiB (76% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191205_image1_med.jpg could save 174.4KiB (82% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191106b_image1_med.jpg could save 156KiB (75% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191008_image1_med.jpg could save 135KiB (78% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20190916_image1_med.jpg could save 129.3KiB (81% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191023_image1_med.jpg could save 116.9KiB (77% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191016_image1_med.jpg could save 114.7KiB (78% reduction).
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Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191101_image1_med.jpg could save 101KiB (81% reduction).
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Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191106_image2_med.jpg could save 87.3KiB (82% reduction).
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Compressing https://www.jhuapl.edu/Content/images/carousel/carousel_3-2.jpg could save 71.1KiB (26% reduction).
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Compressing https://www.jhuapl.edu/Content/images/carousel/CO_l21.jpg could save 61.9KiB (29% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191001_image1_med.jpg could save 61.4KiB (77% reduction).
Compressing https://www.jhuapl.edu/Content/images/carousel/SPP_ObservingSun2.jpg could save 42.7KiB (19% reduction).
Compressing https://www.jhuapl.edu/Content/images/what-is-APL_bg.jpg could save 42.3KiB (24% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191111_image1_med.jpg could save 316.4KiB (77% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191113_image1_med.jpg could save 285.5KiB (75% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191113b_image1_med.jpg could save 280KiB (77% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191113c_image1_med.jpg could save 247.6KiB (78% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191126_image1_med.jpg could save 238.1KiB (74% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191107_image1_med.jpg could save 203KiB (82% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191115_image1_med.jpg could save 190.6KiB (77% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20190927_image1_med.jpg could save 181.4KiB (77% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191204_image1_med.jpg could save 181.3KiB (85% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20190926_image1_med.jpg could save 179KiB (76% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191205_image1_med.jpg could save 174.4KiB (82% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191106b_image1_med.jpg could save 156KiB (75% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191008_image1_med.jpg could save 135KiB (78% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20190916_image1_med.jpg could save 129.3KiB (81% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191023_image1_med.jpg could save 116.9KiB (77% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191016_image1_med.jpg could save 114.7KiB (78% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191029_image1_med.jpg could save 110.5KiB (79% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191017_image1_med.jpg could save 107.5KiB (80% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191101_image1_med.jpg could save 101KiB (81% reduction).
Compressing https://www.jhuapl.edu/Content/images/featurestory/20191022_image1_med.jpg could save 95.1KiB (80% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191106_image2_med.jpg could save 87.3KiB (82% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20190925_image1_med.jpg could save 71.8KiB (84% reduction).
Compressing https://www.jhuapl.edu/Content/images/carousel/carousel_3-2.jpg could save 71.1KiB (26% reduction).
Compressing https://www.jhuapl.edu/Content/images/carousel/2872889.jpg could save 70.4KiB (23% reduction).
Compressing https://www.jhuapl.edu/Content/images/carousel/CO_l21.jpg could save 61.9KiB (29% reduction).
Compressing https://www.jhuapl.edu/Content/images/pressrelease/20191001_image1_med.jpg could save 61.4KiB (77% reduction).
Compressing https://www.jhuapl.edu/Content/images/carousel/SPP_ObservingSun2.jpg could save 42.7KiB (19% reduction).
Compressing https://www.jhuapl.edu/Content/images/what-is-APL_bg.jpg could save 42.3KiB (24% reduction).
priority - 40Leverage 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://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.css (expiration not specified)
https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.js (expiration not specified)
https://www.jhuapl.edu/Content/css/apl-theme.css (expiration not specified)
https://www.jhuapl.edu/Content/css/bootstrap.min.css (expiration not specified)
https://www.jhuapl.edu/Content/css/font-awesome.min.css (expiration not specified)
https://www.jhuapl.edu/Content/css/jquery.bsPhotoGallery.css (expiration not specified)
https://www.jhuapl.edu/Content/images/apl_small_horizontal_blue-stroked.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/background_homepage.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/carousel/171…D017-002C_soldiers.JPG (expiration not specified)
https://www.jhuapl.edu/Content/images/carousel/2872889.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/carousel/CO_l21.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/carousel/SPP_ObservingSun2.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/carousel/SUBnewcarousel.JPG (expiration not specified)
https://www.jhuapl.edu/Content/images/carousel/carousel_3-2.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/featurestory/20191022_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_arrow-left.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_arrow-right.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_contact.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_core.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_facebook.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_future.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_instagram.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_linkedin.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_news-white.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_purpose.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_rss.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_twitter.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_youtube.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/19-01404-5D1_1409.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20190916_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20190925_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20190926_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20190927_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191001_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191008_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191016_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191017_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191023_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191029_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191101_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191106_image2_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191106b_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191107_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191111_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191113_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191113b_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191113c_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191115_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191126_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191204_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191205_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/what-is-APL_bg.jpg (expiration not specified)
https://www.googletagmanager.com/gtag/js?id=UA-47743650-1 (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.js (expiration not specified)
https://www.jhuapl.edu/Content/css/apl-theme.css (expiration not specified)
https://www.jhuapl.edu/Content/css/bootstrap.min.css (expiration not specified)
https://www.jhuapl.edu/Content/css/font-awesome.min.css (expiration not specified)
https://www.jhuapl.edu/Content/css/jquery.bsPhotoGallery.css (expiration not specified)
https://www.jhuapl.edu/Content/images/apl_small_horizontal_blue-stroked.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/background_homepage.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/carousel/171…D017-002C_soldiers.JPG (expiration not specified)
https://www.jhuapl.edu/Content/images/carousel/2872889.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/carousel/CO_l21.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/carousel/SPP_ObservingSun2.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/carousel/SUBnewcarousel.JPG (expiration not specified)
https://www.jhuapl.edu/Content/images/carousel/carousel_3-2.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/featurestory/20191022_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_arrow-left.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_arrow-right.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_contact.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_core.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_facebook.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_future.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_instagram.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_linkedin.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_news-white.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_purpose.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_rss.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_twitter.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/icon_youtube.svg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/19-01404-5D1_1409.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20190916_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20190925_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20190926_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20190927_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191001_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191008_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191016_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191017_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191023_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191029_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191101_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191106_image2_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191106b_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191107_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191111_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191113_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191113b_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191113c_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191115_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191126_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191204_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/pressrelease/20191205_image1_med.jpg (expiration not specified)
https://www.jhuapl.edu/Content/images/what-is-APL_bg.jpg (expiration not specified)
https://www.googletagmanager.com/gtag/js?id=UA-47743650-1 (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 4 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://www.jhuapl.edu/bundles/modernizr?v=inCVuEF…ic_UE5MwpRMNGcOtk94TE1
https://www.jhuapl.edu/bundles/jquery?v=NNvRrt_4VT…a7YmcdZ5YTm3OVRV8yIMU1
https://www.jhuapl.edu/bundles/bootstrap?v=lescQEu…UOSyTDIg0Kk9zHDX55GCw1
https://addsearch.com/js/?key=9437f110b5194c83b62d7cb4fda104fa
https://www.jhuapl.edu/bundles/jquery?v=NNvRrt_4VT…a7YmcdZ5YTm3OVRV8yIMU1
https://www.jhuapl.edu/bundles/bootstrap?v=lescQEu…UOSyTDIg0Kk9zHDX55GCw1
https://addsearch.com/js/?key=9437f110b5194c83b62d7cb4fda104fa
Optimize CSS Delivery of the following:
https://www.jhuapl.edu/Content/css/bootstrap.min.css
https://www.jhuapl.edu/Content/css/jquery.bsPhotoGallery.css
https://www.jhuapl.edu/Content/css/apl-theme.css
https://www.jhuapl.edu/Content/css/bootstrap.min.css
https://www.jhuapl.edu/Content/css/font-awesome.min.css
https://www.jhuapl.edu/Content/css/font-awesome.min.css
https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.css
https://www.jhuapl.edu/Content/css/jquery.bsPhotoGallery.css
https://www.jhuapl.edu/Content/css/apl-theme.css
https://www.jhuapl.edu/Content/css/bootstrap.min.css
https://www.jhuapl.edu/Content/css/font-awesome.min.css
https://www.jhuapl.edu/Content/css/font-awesome.min.css
https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.css
priority - 26Avoid 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://jhuapl.edu/
http://www.jhuapl.edu/
https://www.jhuapl.edu/
http://www.jhuapl.edu/
https://www.jhuapl.edu/
priority - 10Enable 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 98.2KiB (66% reduction).
Compressing https://www.jhuapl.edu/bundles/jquery?v=NNvRrt_4VT…a7YmcdZ5YTm3OVRV8yIMU1 could save 61.3KiB (64% reduction).
Compressing https://www.jhuapl.edu/bundles/bootstrap?v=lescQEu…UOSyTDIg0Kk9zHDX55GCw1 could save 26.5KiB (73% reduction).
Compressing https://www.jhuapl.edu/bundles/modernizr?v=inCVuEF…ic_UE5MwpRMNGcOtk94TE1 could save 6.4KiB (59% reduction).
Compressing https://www.jhuapl.edu/Content/images/icon_contact.svg could save 2.9KiB (72% reduction).
Compressing https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.css could save 1.1KiB (67% reduction).
Compressing https://www.jhuapl.edu/bundles/bootstrap?v=lescQEu…UOSyTDIg0Kk9zHDX55GCw1 could save 26.5KiB (73% reduction).
Compressing https://www.jhuapl.edu/bundles/modernizr?v=inCVuEF…ic_UE5MwpRMNGcOtk94TE1 could save 6.4KiB (59% reduction).
Compressing https://www.jhuapl.edu/Content/images/icon_contact.svg could save 2.9KiB (72% reduction).
Compressing https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.css could save 1.1KiB (67% reduction).
priority - 2Reduce server response time
In our test, your server responded in 0.33 seconds.
priority - 0Minify 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 4.2KiB (29% reduction).
Minifying https://www.jhuapl.edu/Content/css/apl-theme.css could save 3.8KiB (29% reduction) after compression.
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Minifying https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.css could save 451B (27% reduction).
priority - 0Minify JavaScript
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Minify JavaScript for the following resources to reduce their size by 1.1KiB (44% reduction).
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jhuapl.edu Mobile Resource Breakdown
| Total Resources | 70 |
| Number of Hosts | 6 |
| Static Resources | 57 |
| JavaScript Resources | 9 |
| CSS Resources | 5 |
jhuapl.edu mobile page usability
Last tested: 2019-12-09
Mobile Usability
Good
99/100
jhuapl.edu Mobile Usability Test Quick Summary
priority - 0Size 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="/Home/Contact">Contact Us</a> and 1 others are close to other tap targets.jhuapl.edu HTML validation
Errors
Duplicate ID “link_ATLAS”.
Line: 167 Column: 9 - 48
"...> <li id="link_ATLAS" role="presentation"><a hre..." Line: 210 Column: 9 - 48
"...> <li id="link_ATLAS" role="presentation"><a hre..."
"...> <li id="link_ATLAS" role="presentation"><a hre..." Line: 210 Column: 9 - 48
"...> <li id="link_ATLAS" role="presentation"><a hre..."
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Line: 232 Column: 25 - 63
"... <div class="container dropdown-search"> ..."
"... <div class="container dropdown-search"> ..."
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Line: 318 Column: 21 - 86
"... <img class="arrow-left" src="/Content/images/icon_arrow-left.svg"> ..." Line: 322 Column: 21 - 88
"... <img class="arrow-right" src="/Content/images/icon_arrow-right.svg"> ..."
"... <img class="arrow-left" src="/Content/images/icon_arrow-left.svg"> ..." Line: 322 Column: 21 - 88
"... <img class="arrow-right" src="/Content/images/icon_arrow-right.svg"> ..."
Attribute “alt” not allowed on element “div” at this point.
Line: 440 Column: 21 - 228
"... <div data-image="/Content/images/pressrelease/20190220_image1_med.png" class="article-image article-image-bottom article-image-position-top" alt="Construction Industry Award" style="background-position:top;"> ..." Line: 452 Column: 21 - 237
"... <div data-image="/Content/images/pressrelease/20190220_image1_med.png" class="article-image article-image-bottom article-image-position-top" alt="The twin CubeSat Assessment and Test" style="background-position:top;"> ..." Line: 464 Column: 21 - 214
"... <div data-image="/Content/images/pressrelease/20190205_image1_med.jpg" class="article-image article-image-bottom article-image-position-top" alt="Joan Hoffmann" style="background-position:top;"> ..." Line: 481 Column: 21 - 151
"... <div data-image="/Content/images/pressrelease/20190204_image1_med.jpg" class="article-image article-image-left" alt="Kirk Shawhan"> ..." Line: 488 Column: 21 - 225
"... <div data-image="/Content/images/pressrelease/20190130_image1_lg.jpg" class="article-image article-image-bottom article-image-position-top" alt="National Health Symposium" style="background-position:top;"> ..." Line: 506 Column: 21 - 157
"... <div data-image="/Content/images/pressrelease/20190109_image1_lg.jpg" class="article-image article-image-right" alt="Katherine L. Morse"> ..." Line: 513 Column: 21 - 228
"... <div data-image="/Content/images/pressrelease/20190108b_image1_med.png" class="article-image article-image-bottom article-image-position-top" alt="researcher swab collection" style="background-position:top;"> ..." Line: 534 Column: 21 - 151
"... <div data-image="/Content/images/pressrelease/20190108_image1_lg.jpg" class="article-image article-image-left" alt="David Van Wie"> ..." Line: 546 Column: 21 - 150
"... <div data-image="/Content/images/pressrelease/20190102_image1_lg.png" class="article-image article-image-left" alt="Ultima Thule"> ..." Line: 559 Column: 21 - 179
"... <div data-image="/Content/images/pressrelease/NewHorizonsKBOencounterHP.jpg" class="article-image article-image-left" alt="Artist's rendering of Ultima Thule"> ..." Line: 566 Column: 21 - 226
"... <div data-image="/Content/images/pressrelease/20181217_image1_lg.png" class="article-image article-image-bottom article-image-position-top" alt="researcher swab collection" style="background-position:top;"> ..." Line: 577 Column: 21 - 235
"... <div data-image="/Content/images/pressrelease/20181211b_image1_lg.jpg" class="article-image article-image-bottom article-image-position-top" alt="Aegis Ashore Intercept Flight Test" style="background-position:top;"> ..."
"... <div data-image="/Content/images/pressrelease/20190220_image1_med.png" class="article-image article-image-bottom article-image-position-top" alt="Construction Industry Award" style="background-position:top;"> ..." Line: 452 Column: 21 - 237
"... <div data-image="/Content/images/pressrelease/20190220_image1_med.png" class="article-image article-image-bottom article-image-position-top" alt="The twin CubeSat Assessment and Test" style="background-position:top;"> ..." Line: 464 Column: 21 - 214
"... <div data-image="/Content/images/pressrelease/20190205_image1_med.jpg" class="article-image article-image-bottom article-image-position-top" alt="Joan Hoffmann" style="background-position:top;"> ..." Line: 481 Column: 21 - 151
"... <div data-image="/Content/images/pressrelease/20190204_image1_med.jpg" class="article-image article-image-left" alt="Kirk Shawhan"> ..." Line: 488 Column: 21 - 225
"... <div data-image="/Content/images/pressrelease/20190130_image1_lg.jpg" class="article-image article-image-bottom article-image-position-top" alt="National Health Symposium" style="background-position:top;"> ..." Line: 506 Column: 21 - 157
"... <div data-image="/Content/images/pressrelease/20190109_image1_lg.jpg" class="article-image article-image-right" alt="Katherine L. Morse"> ..." Line: 513 Column: 21 - 228
"... <div data-image="/Content/images/pressrelease/20190108b_image1_med.png" class="article-image article-image-bottom article-image-position-top" alt="researcher swab collection" style="background-position:top;"> ..." Line: 534 Column: 21 - 151
"... <div data-image="/Content/images/pressrelease/20190108_image1_lg.jpg" class="article-image article-image-left" alt="David Van Wie"> ..." Line: 546 Column: 21 - 150
"... <div data-image="/Content/images/pressrelease/20190102_image1_lg.png" class="article-image article-image-left" alt="Ultima Thule"> ..." Line: 559 Column: 21 - 179
"... <div data-image="/Content/images/pressrelease/NewHorizonsKBOencounterHP.jpg" class="article-image article-image-left" alt="Artist's rendering of Ultima Thule"> ..." Line: 566 Column: 21 - 226
"... <div data-image="/Content/images/pressrelease/20181217_image1_lg.png" class="article-image article-image-bottom article-image-position-top" alt="researcher swab collection" style="background-position:top;"> ..." Line: 577 Column: 21 - 235
"... <div data-image="/Content/images/pressrelease/20181211b_image1_lg.jpg" class="article-image article-image-bottom article-image-position-top" alt="Aegis Ashore Intercept Flight Test" style="background-position:top;"> ..."
No “p” element in scope but a “p” end tag seen.
Line: 663 Column: 81 - 84
"...mpuses</a></p> ..."
"...mpuses</a></p> ..."
Attribute “alt” not allowed on element “a” at this point.
Line: 668 Column: 13 - 95
"... <a href="https://twitter.com/JHUAPL?lang=en" alt="JHU/APL Twitter" target="_blank"><img s..." Line: 669 Column: 13 - 104
"... <a href="https://www.youtube.com/user/jhuapl" alt="JHU/APL YouTube Channel" target="_blank"><img s..." Line: 670 Column: 13 - 94
"... <a href="https://www.facebook.com/JHUAPL/" alt="JHU/APL Facebook" target="_blank"><img s..." Line: 671 Column: 13 - 147
"... <a href="https://www.linkedin.com/company/johns-hopkins-university-applied-physics-laboratory/" alt="JHU/APL LinkedIn" target="_blank"><img s..." Line: 672 Column: 13 - 105
"... <a href="https://www.instagram.com/johnshopkinsapl/" alt="JHU/APL Instagram" target="_blank"><img s..."
"... <a href="https://twitter.com/JHUAPL?lang=en" alt="JHU/APL Twitter" target="_blank"><img s..." Line: 669 Column: 13 - 104
"... <a href="https://www.youtube.com/user/jhuapl" alt="JHU/APL YouTube Channel" target="_blank"><img s..." Line: 670 Column: 13 - 94
"... <a href="https://www.facebook.com/JHUAPL/" alt="JHU/APL Facebook" target="_blank"><img s..." Line: 671 Column: 13 - 147
"... <a href="https://www.linkedin.com/company/johns-hopkins-university-applied-physics-laboratory/" alt="JHU/APL LinkedIn" target="_blank"><img s..." Line: 672 Column: 13 - 105
"... <a href="https://www.instagram.com/johnshopkinsapl/" alt="JHU/APL Instagram" target="_blank"><img s..."
Warnings
The first occurrence of ID “link_ATLAS” was here.
Line: 166 Column: 9 - 48
"...> <li id="link_ATLAS" role="presentation"><a hre..." Line: 166 Column: 9 - 48
"...> <li id="link_ATLAS" role="presentation"><a hre..."
"...> <li id="link_ATLAS" role="presentation"><a hre..." Line: 166 Column: 9 - 48
"...> <li id="link_ATLAS" role="presentation"><a hre..."
The “type” attribute is unnecessary for JavaScript resources.
Line: 727 Column: 5 - 103
"...s --> <script type="text/javascript" src="https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.js"> <..."
"...s --> <script type="text/javascript" src="https://secwww.jhuapl.edu/AlertSystem/Scripts/app/aplalert.js"> <..."
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
Line: 331 Column: 25 - 28
"... <h1>Critic..." Line: 394 Column: 13 - 38
"... <h1 class="no-top-margin"> ..." Line: 429 Column: 9 - 31
"...> <h1 class="page-title">Latest..."
"... <h1>Critic..." Line: 394 Column: 13 - 38
"... <h1 class="no-top-margin"> ..." Line: 429 Column: 9 - 31
"...> <h1 class="page-title">Latest..."
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jhuapl.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.
jhuapl.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.