SCIENCEDIRECT.COM ScienceDirect.com | Science, health and medical journals, full text articles and books.

sciencedirect.com Website Information

Daily Unique Visits: 19,536,747

Daily Page Views: 156,293,976

Income Per Day: $156,294

Estimated Value: $168,797,520

This website is located in United States and is using following IP address 162.159.136.70. See the complete list of popular websites hosted in United States.

sciencedirect.com is registered under .COM top-level domain. Please check other sites in .COM zone.

Website sciencedirect.com is using the following name servers:

  • elmo.ns.cloudflare.com
  • sofia.ns.cloudflare.com

and is probably hosted by CLOUDFLARENET - Cloudflare, Inc., US. See the full list of other websites hosted by CLOUDFLARENET - Cloudflare, Inc., US.

The highest website sciencedirect.com position in Alexa rank database was 78 and the lowest rank position was 84. Current position of sciencedirect.com in Alexa rank database is 78.

Desktop speed score of sciencedirect.com (81/100) is better than the results of 71.91% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of sciencedirect.com (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 sciencedirect.com (64/100) is better than the results of 64.03% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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sciencedirect.com 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.


sciencedirect.com whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.


Domain Name: SCIENCEDIRECT.COM
Registry Domain ID: 4453196_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.safenames.net
Registrar URL: http://www.safenames.net
Updated Date: 2024-03-14T00:50:41Z
Creation Date: 1997-03-12T05:00:00Z
Registry Expiry Date: 2025-03-13T04:00:00Z
Registrar: SafeNames Ltd.
Registrar IANA ID: 447
Registrar Abuse Contact Email: abuse@safenames.net
Registrar Abuse Contact Phone: +44.1908200022
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: ELMO.NS.CLOUDFLARE.COM
Name Server: SOFIA.NS.CLOUDFLARE.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-03-23T13:23:15Z

sciencedirect.com server information

Servers Location

sciencedirect.com desktop page speed rank

Last tested: 2016-06-12


Desktop Speed Medium
81/100

sciencedirect.com Desktop Speed Test Quick Summary


priority - 11Reduce server response time

priority - 6Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

http://cdnjs.cloudflare.com/ajax/libs/classlist/2014.01.31/classList.min.js

Optimize CSS Delivery of the following:

http://sdfestaticassets-us-east-1.sciencedirectass…ylesheets/homepage.css
http://sdfestaticassets-us-east-1.sciencedirectass…a673e09a5fc9/style.css

priority - 3Leverage 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:

http://assets.adobedtm.com/376c5346e33126fdb6b2dba…99b3bf1d427fc5bd286.js (expiration not specified)
http://assets.adobedtm.com/376c5346e33126fdb6b2dba…bba80e13f4b6fa0dd7c.js (expiration not specified)
http://assets.adobedtm.com/376c5346e33126fdb6b2dba…08964746d4385002642.js (expiration not specified)
http://cdn.optimizely.com/js/204774041.js (2 minutes)
http://c.go-mpulse.net/boomerang/config.js?key=2FB…mory,CACHE_RELOAD,LOGN (5 minutes)
http://d6tizftlrpuof.cloudfront.net/live/resources…ktop_bottom_retina.png (60 minutes)

priority - 1Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 9.8KiB (17% reduction).

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priority - 0Optimize images

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sciencedirect.com Desktop Resource Breakdown

Total Resources28
Number of Hosts16
Static Resources17
JavaScript Resources16
CSS Resources2

sciencedirect.com mobile page speed rank

Last tested: 2019-12-02


Mobile Speed Bad
64/100

sciencedirect.com Mobile Speed Test Quick Summary


priority - 56Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 2 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://assets.adobedtm.com/376c5346e33126fdb6b2db…bba80e13f4b6fa0dd7c.js
https://assets.adobedtm.com/376c5346e33126fdb6b2db…08964746d4385002642.js

Optimize CSS Delivery of the following:

https://sdfestaticassets-us-east-1.sciencedirectas…375eccb6450/styles.css

priority - 3Leverage 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://assets.adobedtm.com/376c5346e33126fdb6b2db…99b3bf1d427fc5bd286.js (60 minutes)
https://assets.adobedtm.com/376c5346e33126fdb6b2db…bba80e13f4b6fa0dd7c.js (60 minutes)
https://assets.adobedtm.com/376c5346e33126fdb6b2db…08964746d4385002642.js (60 minutes)
https://assets.adobedtm.com/376c5346e33126fdb6b2db…60664746d57b70018c6.js (60 minutes)

priority - 0Optimize images

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

Optimize the following images to reduce their size by 2.1KiB (31% reduction).

Compressing https://d6tizftlrpuof.cloudfront.net/themes/prod/a…5ee4538659664530937465 could save 2.1KiB (31% 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 1.3KiB (14% reduction).

Minifying https://assets.adobedtm.com/376c5346e33126fdb6b2db…08964746d4385002642.js could save 1.3KiB (14% reduction) after compression.

sciencedirect.com Mobile Resource Breakdown

Total Resources21
Number of Hosts10
Static Resources10
JavaScript Resources9
CSS Resources1

sciencedirect.com mobile page usability

Last tested: 2019-12-02


Mobile Usability Good
96/100

sciencedirect.com Mobile Usability Test Quick Summary


priority - 3Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 424 CSS pixels wide, but the viewport is only 412 CSS pixels wide. The following elements fall outside the viewport:

The element <path> falls outside the viewport.

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 id="els-footer-abo…science-direct" href="https://www.el…/sciencedirect" class="anchor u-margi…-inherit-color">About ScienceDirect</a> and 6 others are close to other tap targets.

sciencedirect.com HTML validation

Errors

Attribute “alt” not allowed on element “svg” at this point.

Line: 32 Column: 617 - 882
"...th="54" /><svg xmlns="http://www.w3.org/2000/svg" role="img" version="1.1" height="30" width="138" viewBox="0 0 138 30" class="gh-wordmark u-margin-s-left" fill="#f36d21" aria-labelledby="gh-wm-science-direct" focusable="false" aria-hidden="true" alt="ScienceDirect Wordmark"><title..." Line: 32 Column: 4989 - 5140
"...t"></span><svg focusable="false" viewBox="0 0 114 128" aria-hidden="true" alt="ScienceDirect help page" width="21.375" height="24" class="icon icon-help gh-icon"><path ..." Line: 32 Column: 52276 - 52398
"...nofollow"><svg xmlns="http://www.w3.org/2000/svg" width="93" height="20" version="1" viewBox="0 0 280 65" alt="RELX group home page"><g tra..."

Attribute “autocorrect” not allowed on element “input” at this point.

Line: 32 Column: 8950 - 9215
"...ontainer"><input type="search" id="qs-searchbox-input" aria-label="Keywords" aria-describedby="qs-searchbox-input-validation-error-message" name="qs" placeholder="Keywords" spellcheck="false" autoComplete="on" autoCorrect="off" autoCapitalize="off" maxLength="500" value="" /><div i..." Line: 32 Column: 9417 - 9699
"...ontainer"><input type="search" id="authors-searchbox-input" aria-label="Authors" aria-describedby="authors-searchbox-input-validation-error-message" name="authors" placeholder="Author name" spellcheck="false" autoComplete="on" autoCorrect="off" autoCapitalize="off" maxLength="100" value="" /><div i..." Line: 32 Column: 10057 - 10408
"...ontainer"><input type="search" value="" autoComplete="off" aria-autocomplete="list" aria-controls="react-autowhatever-1" spellcheck="false" autoCorrect="off" autoCapitalize="off" maxLength="200" placeholder="Journal/book title" aria-label="Journal/Book Title" aria-describedby="pub-searchbox-input-validation-error-message" id="pub-searchbox-input" name="pub" /><div i..." Line: 32 Column: 10763 - 11036
"...ontainer"><input type="search" id="volume-searchbox-input" aria-label="Volume" aria-describedby="volume-searchbox-input-validation-error-message" name="volume" placeholder="Volume" spellcheck="false" autoComplete="off" autoCorrect="off" autoCapitalize="off" maxLength="15" value="" /><div i..." Line: 32 Column: 11250 - 11518
"...ontainer"><input type="search" id="issue-searchbox-input" aria-label="Issue" aria-describedby="issue-searchbox-input-validation-error-message" name="issue" placeholder="Issue" spellcheck="false" autoComplete="off" autoCorrect="off" autoCapitalize="off" maxLength="15" value="" /><div i..." Line: 32 Column: 11770 - 12035
"...ontainer"><input type="search" id="page-searchbox-input" aria-label="Pages" aria-describedby="page-searchbox-input-validation-error-message" name="page" placeholder="Pages" spellcheck="false" autoComplete="off" autoCorrect="off" autoCapitalize="off" maxLength="15" value="" /><div i..."

Attribute “lines” not allowed on element “span” at this point.

Line: 32 Column: 18848 - 18891
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Nanopa..." Line: 32 Column: 19245 - 19288
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Time-f..." Line: 32 Column: 19657 - 19700
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Interm..." Line: 32 Column: 20419 - 20462
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Fuel</..." Line: 32 Column: 20749 - 20792
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Journa..." Line: 32 Column: 21100 - 21143
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Journa..." Line: 32 Column: 23722 - 23765
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Early ..." Line: 32 Column: 24204 - 24247
"...hor-text"><span lines="4" ellipsis="…" debounce="100">The FD..." Line: 32 Column: 24609 - 24652
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Treatm..." Line: 32 Column: 25208 - 25251
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Phytoc..." Line: 32 Column: 25537 - 25580
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Autoim..." Line: 32 Column: 25890 - 25933
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Atmosp..." Line: 32 Column: 28460 - 28503
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Safety..." Line: 32 Column: 28960 - 29003
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Physic..." Line: 32 Column: 29448 - 29491
"...hor-text"><span lines="4" ellipsis="…" debounce="100">The FD..." Line: 32 Column: 30029 - 30072
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Journa..." Line: 32 Column: 30413 - 30456
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Psychi..." Line: 32 Column: 30785 - 30828
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Medica..." Line: 32 Column: 33641 - 33684
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Multid..." Line: 32 Column: 34084 - 34127
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Litera..." Line: 32 Column: 34490 - 34533
"...hor-text"><span lines="4" ellipsis="…" debounce="100">La par..." Line: 32 Column: 35006 - 35049
"...hor-text"><span lines="4" ellipsis="…" debounce="100">The Ar..." Line: 32 Column: 35354 - 35397
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Landsc..." Line: 32 Column: 35703 - 35746
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Clinic..."

Attribute “ellipsis” not allowed on element “span” at this point.

Line: 32 Column: 18848 - 18891
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Nanopa..." Line: 32 Column: 19245 - 19288
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Time-f..." Line: 32 Column: 19657 - 19700
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Interm..." Line: 32 Column: 20419 - 20462
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Fuel</..." Line: 32 Column: 20749 - 20792
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Journa..." Line: 32 Column: 21100 - 21143
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Journa..." Line: 32 Column: 23722 - 23765
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Early ..." Line: 32 Column: 24204 - 24247
"...hor-text"><span lines="4" ellipsis="…" debounce="100">The FD..." Line: 32 Column: 24609 - 24652
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Treatm..." Line: 32 Column: 25208 - 25251
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Phytoc..." Line: 32 Column: 25537 - 25580
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Autoim..." Line: 32 Column: 25890 - 25933
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Atmosp..." Line: 32 Column: 28460 - 28503
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Safety..." Line: 32 Column: 28960 - 29003
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Physic..." Line: 32 Column: 29448 - 29491
"...hor-text"><span lines="4" ellipsis="…" debounce="100">The FD..." Line: 32 Column: 30029 - 30072
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Journa..." Line: 32 Column: 30413 - 30456
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Psychi..." Line: 32 Column: 30785 - 30828
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Medica..." Line: 32 Column: 33641 - 33684
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Multid..." Line: 32 Column: 34084 - 34127
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Litera..." Line: 32 Column: 34490 - 34533
"...hor-text"><span lines="4" ellipsis="…" debounce="100">La par..." Line: 32 Column: 35006 - 35049
"...hor-text"><span lines="4" ellipsis="…" debounce="100">The Ar..." Line: 32 Column: 35354 - 35397
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Landsc..." Line: 32 Column: 35703 - 35746
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Clinic..."

Attribute “debounce” not allowed on element “span” at this point.

Line: 32 Column: 18848 - 18891
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Nanopa..." Line: 32 Column: 19245 - 19288
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Time-f..." Line: 32 Column: 19657 - 19700
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Interm..." Line: 32 Column: 20419 - 20462
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Fuel</..." Line: 32 Column: 20749 - 20792
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Journa..." Line: 32 Column: 21100 - 21143
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Journa..." Line: 32 Column: 23722 - 23765
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Early ..." Line: 32 Column: 24204 - 24247
"...hor-text"><span lines="4" ellipsis="…" debounce="100">The FD..." Line: 32 Column: 24609 - 24652
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Treatm..." Line: 32 Column: 25208 - 25251
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Phytoc..." Line: 32 Column: 25537 - 25580
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Autoim..." Line: 32 Column: 25890 - 25933
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Atmosp..." Line: 32 Column: 28460 - 28503
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Safety..." Line: 32 Column: 28960 - 29003
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Physic..." Line: 32 Column: 29448 - 29491
"...hor-text"><span lines="4" ellipsis="…" debounce="100">The FD..." Line: 32 Column: 30029 - 30072
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Journa..." Line: 32 Column: 30413 - 30456
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Psychi..." Line: 32 Column: 30785 - 30828
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Medica..." Line: 32 Column: 33641 - 33684
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Multid..." Line: 32 Column: 34084 - 34127
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Litera..." Line: 32 Column: 34490 - 34533
"...hor-text"><span lines="4" ellipsis="…" debounce="100">La par..." Line: 32 Column: 35006 - 35049
"...hor-text"><span lines="4" ellipsis="…" debounce="100">The Ar..." Line: 32 Column: 35354 - 35397
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Landsc..." Line: 32 Column: 35703 - 35746
"...hor-text"><span lines="4" ellipsis="…" debounce="100">Clinic..."

Bad value “1” for attribute “version” on element “svg”.

Line: 32 Column: 52276 - 52398
"...nofollow"><svg xmlns="http://www.w3.org/2000/svg" width="93" height="20" version="1" viewBox="0 0 280 65" alt="RELX group home page"><g tra..."

The “aria-controls” attribute must point to an element in the same document.

Line: 32 Column: 36539 - 36761
"...on-panel"><button id="396423-accordion-tab-0" type="button" class="accordion-panel-title u-padding-s-ver u-text-left text-l" tabindex="0" role="tab" aria-expanded="false" aria-selected="true" aria-controls="396423-accordion-panel-0"><span ..." Line: 32 Column: 37047 - 37271
"...on-panel"><button id="396423-accordion-tab-1" type="button" class="accordion-panel-title u-padding-s-ver u-text-left text-l" tabindex="-1" role="tab" aria-expanded="false" aria-selected="false" aria-controls="396423-accordion-panel-1"><span ..." Line: 32 Column: 37537 - 37761
"...on-panel"><button id="396423-accordion-tab-2" type="button" class="accordion-panel-title u-padding-s-ver u-text-left text-l" tabindex="-1" role="tab" aria-expanded="false" aria-selected="false" aria-controls="396423-accordion-panel-2"><span ..." Line: 32 Column: 38029 - 38253
"...on-panel"><button id="396423-accordion-tab-3" type="button" class="accordion-panel-title u-padding-s-ver u-text-left text-l" tabindex="-1" role="tab" aria-expanded="false" aria-selected="false" aria-controls="396423-accordion-panel-3"><span ..."

Warnings

The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.

Line: 32 Column: 42770 - 42790
"...-from-xs"><a name="openaccess"></a><h..."

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

Line: 32 Column: 48339 - 48545
"...div></div><footer role="contentinfo" class="els-footer u-bg-white text-xs u-padding-s-hor u-padding-m-hor-from-sm u-padding-l-hor-from-md u-padding-l-ver u-margin-l-top u-margin-xl-top-from-sm u-margin-l-top-from-md"><div c..."

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sciencedirect.com 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.


sciencedirect.com 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.