nap.edu Website Information
Daily Unique Visits: 963,862
Daily Page Views: 7,710,896
Income Per Day: $7,711
Estimated Value: $8,327,880
This website is located in United States and is using following IP address 144.171.20.6. See the complete list of popular websites hosted in United States.
nap.edu is registered under .EDU top-level domain. Please check other sites in .EDU zone.
Website nap.edu is using the following name servers:
- bonaor.nas.edu
- bonairl.nas.edu
- berkshire.nas.edu
- bighorn.nas.edu
- bona.nas.edu
- rushmore.nas.edu
and is probably hosted by NAS-AS - National Academy of Sciences, US. See the full list of other websites hosted by NAS-AS - National Academy of Sciences, US.
The highest website nap.edu position in Alexa rank database was 1439 and the lowest rank position was 1600. Current position of nap.edu in Alexa rank database is 1581.
Desktop speed score of nap.edu (39/100) is better than the results of 14.12% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of nap.edu (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.
Mobile speed score of nap.edu (35/100) is better than the results of 13.85% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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nap.edu Alexa Rank
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or related to .edu domain registration records.
The EDUCAUSE Whois database is authoritative for the
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A Web interface for the .EDU EDUCAUSE Whois Server is
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-------------------------------------------------------------
Domain Name: NAP.EDU
Registrant:
National Academy Press
500 5th Street N.W.
Washington, DC 20001
USA
Administrative Contact:
System Administration
National Academies
500 Fifth Street, N.W.
Washington, DC 20001
USA
+1.2023343581
sysadmin@nas.edu
Technical Contact:
DNS-Technical- Contact
National Academies
500 Fifth Street, N.W.
Washington, DC 20001
USA
+1.2023342713
DNS-technical-contact@nas.edu
Name Servers:
A16-67.AKAM.NET
A5-65.AKAM.NET
A6-66.AKAM.NET
A11-64.AKAM.NET
A1-44.AKAM.NET
A28-67.AKAM.NET
Domain record activated: 11-Dec-1995
Domain record last updated: 01-Jul-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: NAP.EDU
Registrant:
National Academy Press
500 5th Street N.W.
Washington, DC 20001
USA
Administrative Contact:
System Administration
National Academies
500 Fifth Street, N.W.
Washington, DC 20001
USA
+1.2023343581
sysadmin@nas.edu
Technical Contact:
DNS-Technical- Contact
National Academies
500 Fifth Street, N.W.
Washington, DC 20001
USA
+1.2023342713
DNS-technical-contact@nas.edu
Name Servers:
A16-67.AKAM.NET
A5-65.AKAM.NET
A6-66.AKAM.NET
A11-64.AKAM.NET
A1-44.AKAM.NET
A28-67.AKAM.NET
Domain record activated: 11-Dec-1995
Domain record last updated: 01-Jul-2024
Domain expires: 31-Jul-2025
nap.edu server information
Servers Location
nap.edu desktop page speed rank
Last tested: 2017-05-18
Desktop Speed
Bad
39/100
nap.edu Desktop Speed Test Quick Summary
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priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content
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nap.edu Desktop Resource Breakdown
| Total Resources | 72 |
| Number of Hosts | 8 |
| Static Resources | 62 |
| JavaScript Resources | 11 |
| CSS Resources | 4 |
nap.edu mobile page speed rank
Last tested: 2017-05-18
Mobile Speed
Bad
35/100
nap.edu Mobile Speed Test Quick Summary
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priority - 48Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js
Optimize CSS Delivery of the following:
https://www.nap.edu/stylesheets/topnav-lite.css
https://www.nap.edu/stylesheets/component.css
https://www.nap.edu/stylesheets/vendor/bootstrap-3.0.3/bootstrap.min.css
https://www.nap.edu/stylesheets/naphome.css
https://www.nap.edu/stylesheets/component.css
https://www.nap.edu/stylesheets/vendor/bootstrap-3.0.3/bootstrap.min.css
https://www.nap.edu/stylesheets/naphome.css
priority - 32Enable 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 314.2KiB (76% reduction).
Compressing https://www.nap.edu/stylesheets/vendor/bootstrap-3.0.3/bootstrap.min.css could save 86.5KiB (84% reduction).
Compressing https://www.nap.edu/ could save 75.2KiB (81% reduction).
Compressing https://www.nap.edu/images/topics/svg/svgdefs.svg could save 35.1KiB (59% reduction).
Compressing https://www.nap.edu/stylesheets/naphome.css could save 32.1KiB (80% reduction).
Compressing https://www.nap.edu/includes/js/vendor/bootstrap/3.1.1/bootstrap.min.js could save 20.9KiB (73% reduction).
Compressing https://www.nap.edu/includes/js/typeahead.bundle.min.js could save 19.1KiB (68% reduction).
Compressing https://www.nap.edu/stylesheets/topnav-lite.css could save 16.7KiB (77% reduction).
Compressing https://www.nap.edu/stylesheets/component.css could save 15.1KiB (85% reduction).
Compressing https://www.nap.edu/includes/js/jquery.dlmenu.js could save 4.9KiB (71% reduction).
Compressing https://www.nap.edu/includes/js/jquery.dotdotdot.min.js could save 3.6KiB (59% reduction).
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Compressing https://s3.amazonaws.com/downloads.mailchimp.com/js/goal.min.js could save 1.5KiB (58% reduction).
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Compressing https://www.nap.edu/includes/js/typeahead.bundle.min.js could save 19.1KiB (68% reduction).
Compressing https://www.nap.edu/stylesheets/topnav-lite.css could save 16.7KiB (77% reduction).
Compressing https://www.nap.edu/stylesheets/component.css could save 15.1KiB (85% reduction).
Compressing https://www.nap.edu/includes/js/jquery.dlmenu.js could save 4.9KiB (71% reduction).
Compressing https://www.nap.edu/includes/js/jquery.dotdotdot.min.js could save 3.6KiB (59% reduction).
Compressing https://www.nap.edu/includes/js/jquery.placeholder.js could save 2.9KiB (66% reduction).
Compressing https://s3.amazonaws.com/downloads.mailchimp.com/js/goal.min.js could save 1.5KiB (58% reduction).
Compressing https://www.nap.edu/includes/js/svg4everybody.ie8.min.js could save 512B (43% reduction).
priority - 31Leverage 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://s3.amazonaws.com/downloads.mailchimp.com/js/goal.min.js (expiration not specified)
https://www.nap.edu/images/collections/34.png (expiration not specified)
https://www.nap.edu/images/collections/35.png (expiration not specified)
https://www.nap.edu/images/collections/36.png (expiration not specified)
https://www.nap.edu/images/collections/54.png (expiration not specified)
https://www.nap.edu/images/collections/55.png (expiration not specified)
https://www.nap.edu/images/footer_13_icons.png (expiration not specified)
https://www.nap.edu/images/hdr/bg-nasem-rule.png (expiration not specified)
https://www.nap.edu/images/hdr/logo-nasem-wht-lg.png (expiration not specified)
https://www.nap.edu/images/hdr/nasem-nap-textlogo.png (expiration not specified)
https://www.nap.edu/images/hdr/nasem-nas-logo.png (expiration not specified)
https://www.nap.edu/images/homebg-2.png (expiration not specified)
https://www.nap.edu/images/homeslider/academyscope.png (expiration not specified)
https://www.nap.edu/images/homeslider/collections.png (expiration not specified)
https://www.nap.edu/images/homeslider/ebooks.png (expiration not specified)
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https://www.nap.edu/images/topics/svg/svgdefs.svg (expiration not specified)
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https://www.nap.edu/images/video_thumbs/mm-obama13.png (expiration not specified)
https://www.nap.edu/includes/js/jquery.dlmenu.js (expiration not specified)
https://www.nap.edu/includes/js/jquery.dotdotdot.min.js (expiration not specified)
https://www.nap.edu/includes/js/jquery.placeholder.js (expiration not specified)
https://www.nap.edu/includes/js/svg4everybody.ie8.min.js (expiration not specified)
https://www.nap.edu/includes/js/typeahead.bundle.min.js (expiration not specified)
https://www.nap.edu/includes/js/vendor/bootstrap/3.1.1/bootstrap.min.js (expiration not specified)
https://www.nap.edu/stylesheets/component.css (expiration not specified)
https://www.nap.edu/stylesheets/naphome.css (expiration not specified)
https://www.nap.edu/stylesheets/topnav-lite.css (expiration not specified)
https://www.nap.edu/stylesheets/vendor/bootstrap-3.0.3/bootstrap.min.css (expiration not specified)
https://www.google-analytics.com/gtm/js?id=GTM-PXV…d=310108128.1495146126 (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-N9MJ23 (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://www.nap.edu/images/collections/34.png (expiration not specified)
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https://www.nap.edu/images/footer_13_icons.png (expiration not specified)
https://www.nap.edu/images/hdr/bg-nasem-rule.png (expiration not specified)
https://www.nap.edu/images/hdr/logo-nasem-wht-lg.png (expiration not specified)
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https://www.nap.edu/images/icon-cart.png (expiration not specified)
https://www.nap.edu/images/icon-play.png (expiration not specified)
https://www.nap.edu/images/icon_academyscope.png (expiration not specified)
https://www.nap.edu/images/topics/svg/svgdefs.svg (expiration not specified)
https://www.nap.edu/images/video_thumbs/mm-12192.jpg (expiration not specified)
https://www.nap.edu/images/video_thumbs/mm-18358.jpg (expiration not specified)
https://www.nap.edu/images/video_thumbs/mm-18373.jpg (expiration not specified)
https://www.nap.edu/images/video_thumbs/mm-18612.jpg (expiration not specified)
https://www.nap.edu/images/video_thumbs/mm-obama13.png (expiration not specified)
https://www.nap.edu/includes/js/jquery.dlmenu.js (expiration not specified)
https://www.nap.edu/includes/js/jquery.dotdotdot.min.js (expiration not specified)
https://www.nap.edu/includes/js/jquery.placeholder.js (expiration not specified)
https://www.nap.edu/includes/js/svg4everybody.ie8.min.js (expiration not specified)
https://www.nap.edu/includes/js/typeahead.bundle.min.js (expiration not specified)
https://www.nap.edu/includes/js/vendor/bootstrap/3.1.1/bootstrap.min.js (expiration not specified)
https://www.nap.edu/stylesheets/component.css (expiration not specified)
https://www.nap.edu/stylesheets/naphome.css (expiration not specified)
https://www.nap.edu/stylesheets/topnav-lite.css (expiration not specified)
https://www.nap.edu/stylesheets/vendor/bootstrap-3.0.3/bootstrap.min.css (expiration not specified)
https://www.google-analytics.com/gtm/js?id=GTM-PXV…d=310108128.1495146126 (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-N9MJ23 (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
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://nap.edu/
http://www.nap.edu/
https://www.nap.edu/
http://www.nap.edu/
https://www.nap.edu/
priority - 6Reduce server response time
priority - 3Minify 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 24.8KiB (27% reduction).
Minifying https://www.nap.edu/ could save 24.8KiB (27% 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 16.7KiB (22% reduction).
Minifying https://www.nap.edu/stylesheets/naphome.css could save 10.3KiB (26% reduction).
Minifying https://www.nap.edu/stylesheets/topnav-lite.css could save 3.6KiB (17% reduction).
Minifying https://www.nap.edu/stylesheets/component.css could save 2.8KiB (16% reduction).
Minifying https://www.nap.edu/stylesheets/topnav-lite.css could save 3.6KiB (17% reduction).
Minifying https://www.nap.edu/stylesheets/component.css could save 2.8KiB (16% reduction).
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 3.5KiB (32% reduction).
Minifying https://www.nap.edu/includes/js/jquery.dlmenu.js could save 2.1KiB (32% reduction).
Minifying https://www.nap.edu/includes/js/jquery.placeholder.js could save 1.4KiB (32% reduction).
Minifying https://www.nap.edu/includes/js/jquery.placeholder.js could save 1.4KiB (32% reduction).
nap.edu Mobile Resource Breakdown
| Total Resources | 69 |
| Number of Hosts | 8 |
| Static Resources | 61 |
| JavaScript Resources | 11 |
| CSS Resources | 4 |
nap.edu mobile page usability
Last tested: 2017-05-18
Mobile Usability
Good
99/100
nap.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
The tap target
The tap target
The tap target
The tap target
The tap target
<a href="http://www.nap.edu/obama" class="mm-link">President Obam…Annual Meeting</a> and 3 others are close to other tap targets.The tap target
<label for="email" class="sr-only">Email Address</label> is close to 1 other tap targets.The tap target
<input id="email" type="text" name="EMAIL" class="subscribe-input form-control"> is close to 1 other tap targets.The tap target
<a href="https://www.fa…onalacademies/" class="clip-wrapper"></a> is close to 1 other tap targets.The tap target
<a href="http://www.pin…st.com/NAPress" class="clip-wrapper"></a> is close to 1 other tap targets.The tap target
<a href="/content/request-desk-copies">Desk Copy</a> and 5 others are close to other tap targets.nap.edu HTML validation
Warnings
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Line: 395 Column: 17 - 39
"... <a name="top" id="top"></a> <..." Line: 579 Column: 1 - 18
"...</header> <a name="content"></a> ..." Line: 1308 Column: 54 - 72
"...footer" > <a name="ftr_menu"></a> ..."
"... <a name="top" id="top"></a> <..." Line: 579 Column: 1 - 18
"...</header> <a name="content"></a> ..." Line: 1308 Column: 54 - 72
"...footer" > <a name="ftr_menu"></a> ..."
Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)
Line: 437 Column: - 103
"...a-icon=""> </span> Br..."
"...a-icon=""> </span> Br..."
The “form” role is unnecessary for element “form”.
Line: 585 Column: 5 - 110
"...ter"> <form class="search-form" role="form" action="//www.nap.edu/search" method="GET" title="Search NAP Books"> ..."
"...ter"> <form class="search-form" role="form" action="//www.nap.edu/search" method="GET" title="Search NAP Books"> ..."
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Line: 580 Column: 7 - 32
"... <section class="top-rows"> <..." Line: 1310 Column: 5 - 36
"... <section class="full-width-top"> ..." Line: 1381 Column: 5 - 32
"...> <section class="full-width"> ..."
"... <section class="top-rows"> <..." Line: 1310 Column: 5 - 36
"... <section class="full-width-top"> ..." Line: 1381 Column: 5 - 32
"...> <section class="full-width"> ..."
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Line: 1384 Column: 3 - 165
"...blank"> <img src="/images/hdr/logo-nasem-wht-lg.png" border="0" alt="The National Academies of Sciences, Engineering, and Medicine" style="max-width: 20%; padding: 10px;"></a> ..."
"...blank"> <img src="/images/hdr/logo-nasem-wht-lg.png" border="0" alt="The National Academies of Sciences, Engineering, and Medicine" style="max-width: 20%; padding: 10px;"></a> ..."
Errors
Bad value “topic-Behavioral and Social Sciences” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1171 Column: 5 - 80
"... <li> <a href="/topic/277" tabindex="0" id="topic-Behavioral and Social Sciences"><svg c..."
"... <li> <a href="/topic/277" tabindex="0" id="topic-Behavioral and Social Sciences"><svg c..."
Bad value “topic-Biography and Autobiography” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1178 Column: 5 - 77
"... <li> <a href="/topic/292" tabindex="0" id="topic-Biography and Autobiography"><svg c..."
"... <li> <a href="/topic/292" tabindex="0" id="topic-Biography and Autobiography"><svg c..."
Bad value “topic-Biology and Life Sciences” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1185 Column: 5 - 75
"... <li> <a href="/topic/278" tabindex="0" id="topic-Biology and Life Sciences"><svg c..."
"... <li> <a href="/topic/278" tabindex="0" id="topic-Biology and Life Sciences"><svg c..."
Bad value “topic-Computers and Information Technology” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1192 Column: 5 - 86
"... <li> <a href="/topic/279" tabindex="0" id="topic-Computers and Information Technology"><svg c..."
"... <li> <a href="/topic/279" tabindex="0" id="topic-Computers and Information Technology"><svg c..."
Bad value “topic-Conflict and Security Issues” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1199 Column: 5 - 78
"... <li> <a href="/topic/280" tabindex="0" id="topic-Conflict and Security Issues"><svg c..."
"... <li> <a href="/topic/280" tabindex="0" id="topic-Conflict and Security Issues"><svg c..."
Bad value “topic-Earth Sciences” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1206 Column: 5 - 64
"... <li> <a href="/topic/281" tabindex="0" id="topic-Earth Sciences"><svg c..."
"... <li> <a href="/topic/281" tabindex="0" id="topic-Earth Sciences"><svg c..."
Bad value “topic-Energy and Energy Conservation” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1220 Column: 5 - 80
"... <li> <a href="/topic/283" tabindex="0" id="topic-Energy and Energy Conservation"><svg c..."
"... <li> <a href="/topic/283" tabindex="0" id="topic-Energy and Energy Conservation"><svg c..."
Bad value “topic-Engineering and Technology” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1227 Column: 5 - 76
"... <li> <a href="/topic/284" tabindex="0" id="topic-Engineering and Technology"><svg c..."
"... <li> <a href="/topic/284" tabindex="0" id="topic-Engineering and Technology"><svg c..."
Bad value “topic-Environment and Environmental Studies” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1234 Column: 5 - 87
"... <li> <a href="/topic/285" tabindex="0" id="topic-Environment and Environmental Studies"><svg c..."
"... <li> <a href="/topic/285" tabindex="0" id="topic-Environment and Environmental Studies"><svg c..."
Bad value “topic-Food and Nutrition” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1241 Column: 5 - 68
"... <li> <a href="/topic/287" tabindex="0" id="topic-Food and Nutrition"><svg c..."
"... <li> <a href="/topic/287" tabindex="0" id="topic-Food and Nutrition"><svg c..."
Bad value “topic-Health and Medicine” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1248 Column: 5 - 69
"... <li> <a href="/topic/288" tabindex="0" id="topic-Health and Medicine"><svg c..."
"... <li> <a href="/topic/288" tabindex="0" id="topic-Health and Medicine"><svg c..."
Bad value “topic-Industry and Labor” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1255 Column: 5 - 68
"... <li> <a href="/topic/289" tabindex="0" id="topic-Industry and Labor"><svg c..."
"... <li> <a href="/topic/289" tabindex="0" id="topic-Industry and Labor"><svg c..."
Bad value “topic-Math, Chemistry, and Physics” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1262 Column: 5 - 78
"... <li> <a href="/topic/290" tabindex="0" id="topic-Math, Chemistry, and Physics"><svg c..."
"... <li> <a href="/topic/290" tabindex="0" id="topic-Math, Chemistry, and Physics"><svg c..."
Bad value “topic-Policy for Science and Technology” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1269 Column: 5 - 83
"... <li> <a href="/topic/423" tabindex="0" id="topic-Policy for Science and Technology"><svg c..."
"... <li> <a href="/topic/423" tabindex="0" id="topic-Policy for Science and Technology"><svg c..."
Bad value “topic-Space and Aeronautics” for attribute “id” on element “a”: An ID must not contain whitespace.
Line: 1276 Column: 5 - 71
"... <li> <a href="/topic/293" tabindex="0" id="topic-Space and Aeronautics"><svg c..."
"... <li> <a href="/topic/293" tabindex="0" id="topic-Space and Aeronautics"><svg c..."
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nap.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.
nap.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.