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SYSTEMDYNAMICS.ORG System Dynamics Society | Home for Systems Thinkers and Modelers

systemdynamics.org Website Information

Daily Unique Visits: 7,523

Daily Page Views: 37,615

Income Per Day: $94

Estimated Value: $56,400

systemdynamics.org is registered under .ORG top-level domain. Please check other sites in .ORG zone.

No name server records were found.

and is probably hosted by AS-CHOOPA - Choopa, LLC, US. See the full list of other websites hosted by AS-CHOOPA - Choopa, LLC, US.

The highest website systemdynamics.org position in Alexa rank database was 9719 and the lowest rank position was 996259. Current position of systemdynamics.org in Alexa rank database is 181108.

Desktop speed score of systemdynamics.org (37/100) is better than the results of 12.68% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of systemdynamics.org (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.

Mobile speed score of systemdynamics.org (14/100) is better than the results of 2.48% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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systemdynamics.org 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.

systemdynamics.org 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: systemdynamics.org
Registry Domain ID: 8c3f463d3869458ba6b9943059a41a5b-LROR
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://www.networksolutions.com
Updated Date: 2020-11-01T10:24:49Z
Creation Date: 1998-05-28T04:00:00Z
Registry Expiry Date: 2025-05-27T04:00:00Z
Registrar: Network Solutions, LLC
Registrar IANA ID: 2
Registrar Abuse Contact Email: domain.operations@web.com
Registrar Abuse Contact Phone: +1.8777228662
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: System Dynamics Society
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: NY
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ns-1355.awsdns-41.org
Name Server: ns-1853.awsdns-39.co.uk
Name Server: ns-275.awsdns-34.com
Name Server: ns-776.awsdns-33.net
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-10-25T06:55:26Z

systemdynamics.org server information

Servers Location

systemdynamics.org desktop page speed rank

Last tested: 2019-12-01

Desktop Speed Bad
37/100

systemdynamics.org Desktop Speed Test Quick Summary


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systemdynamics.org Desktop Resource Breakdown

Total Resources113
Number of Hosts15
Static Resources99
JavaScript Resources25
CSS Resources24

systemdynamics.org mobile page speed rank

Last tested: 2018-12-15

Mobile Speed Bad
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systemdynamics.org Mobile Speed Test Quick Summary


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priority - 72Leverage 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://sds.memberclicks.net/assets/caserepModule.jpg (30 seconds)
https://sds.memberclicks.net/assets/right%20module-SDR.jpg (30 seconds)
https://sds.memberclicks.net/assets/slideshow-images/wiSDom_slider2.jpg (30 seconds)
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https://www.systemdynamics.org/assets/site/syds-logo.jpg (30 seconds)
https://www.systemdynamics.org/assets/slideshow-images/SD-NEWSbanner.jpg (30 seconds)
https://www.systemdynamics.org/assets/slideshow-im…_2019_AC_Webslider.jpg (30 seconds)
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https://www.systemdynamics.org/includes/css/jqueryui.css (60 minutes)
https://www.systemdynamics.org/includes/css/system-messages.css (60 minutes)
https://www.systemdynamics.org/includes/css/themes/base/ui.accordion.css (60 minutes)
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https://www.systemdynamics.org/includes/css/themes/base/ui.datepicker.css (60 minutes)
https://www.systemdynamics.org/includes/css/themes/base/ui.dialog.css (60 minutes)
https://www.systemdynamics.org/includes/css/themes/base/ui.progressbar.css (60 minutes)
https://www.systemdynamics.org/includes/css/themes/base/ui.resizable.css (60 minutes)
https://www.systemdynamics.org/includes/css/themes/base/ui.slider.css (60 minutes)
https://www.systemdynamics.org/includes/css/themes/base/ui.tabs.css (60 minutes)
https://www.systemdynamics.org/includes/css/themes/base/ui.theme.css (60 minutes)
https://www.systemdynamics.org/includes/js/jQueryUIDialogInclude.js (60 minutes)
https://www.systemdynamics.org/includes/js/joomla.javascript.js (60 minutes)
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https://www.systemdynamics.org/includes/js/jquery.dataTables.js (60 minutes)
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https://www.systemdynamics.org/includes/js/json2.js (60 minutes)
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https://www.systemdynamics.org/jmc-assets/nivo-sli…hemes/mc01/loading.gif (60 minutes)
https://www.systemdynamics.org/jmc-assets/nivo-sli…o-themes/mc01/mc01.css (60 minutes)
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https://www.systemdynamics.org/jmc-assets/nivo-slider-skins/arrows.png (60 minutes)
https://www.systemdynamics.org/media/system/css/modal.css (60 minutes)
https://www.systemdynamics.org/media/system/js/caption.js (60 minutes)
https://www.systemdynamics.org/media/system/js/modal.js (60 minutes)
https://www.systemdynamics.org/plugins/system/mtupgrade/mootools.js (60 minutes)
https://www.systemdynamics.org/plugins/system/pc_includes/ajax_1.3.js (60 minutes)
https://www.systemdynamics.org/templates/system/css/general.css (60 minutes)
https://www.systemdynamics.org/templates/vinings-jt/css/editor.css (60 minutes)
https://www.systemdynamics.org/ui-v2/js/libs/underscore/underscore.js (60 minutes)
https://js-agent.newrelic.com/nr-1099.min.js (2 hours)
https://ssl.google-analytics.com/ga.js (2 hours)
https://www.systemdynamics.org/cdn-cgi/scripts/5c5…ic/email-decode.min.js (2 days)

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

Your page has 15 blocking script resources and 22 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.systemdynamics.org/includes/js/jquery.min.js
https://www.systemdynamics.org/includes/js/jquery-migrate.min.js
https://www.systemdynamics.org/includes/js/jquery-ui-1.11.4.min.js
https://www.systemdynamics.org/includes/js/jQueryUIDialogInclude.js
https://www.systemdynamics.org/includes/js/jquery.dataTables.js
https://www.systemdynamics.org/includes/js/jquery.tablednd-0.5.js
https://www.systemdynamics.org/includes/js/json2.js
https://www.systemdynamics.org/ui-v2/js/libs/underscore/underscore.js
https://www.systemdynamics.org/plugins/system/mtupgrade/mootools.js
https://www.systemdynamics.org/includes/js/joomla.javascript.js
https://www.systemdynamics.org/media/system/js/caption.js
https://www.systemdynamics.org/plugins/system/pc_includes/ajax_1.3.js
https://www.systemdynamics.org/media/system/js/modal.js
https://www.systemdynamics.org/jmc-assets/global-js/hoverIntent.js
https://www.systemdynamics.org/jmc-assets/global-j…ry.nivo.slider.pack.js

Optimize CSS Delivery of the following:

https://s3.amazonaws.com/icomoon.io/2584/MCFrontEnd/style.css
https://fonts.googleapis.com/css?family=Roboto:400,700
https://www.systemdynamics.org/components/com_jeve…ts/css/new-jevents.css
https://www.systemdynamics.org/includes/css/themes/base/ui.all.css
https://www.systemdynamics.org/includes/css/themes/base/ui.base.css
https://www.systemdynamics.org/includes/css/themes/base/ui.theme.css
https://www.systemdynamics.org/includes/css/themes/base/ui.core.css
https://www.systemdynamics.org/includes/css/themes/base/ui.resizable.css
https://www.systemdynamics.org/includes/css/themes/base/ui.accordion.css
https://www.systemdynamics.org/includes/css/themes/base/ui.dialog.css
https://www.systemdynamics.org/includes/css/themes/base/ui.slider.css
https://www.systemdynamics.org/includes/css/themes/base/ui.tabs.css
https://www.systemdynamics.org/includes/css/themes/base/ui.datepicker.css
https://www.systemdynamics.org/includes/css/themes/base/ui.progressbar.css
https://www.systemdynamics.org/includes/css/jqueryui.css
https://www.systemdynamics.org/includes/css/system-messages.css
https://www.systemdynamics.org/media/system/css/modal.css
https://www.systemdynamics.org/templates/system/css/general.css
https://www.systemdynamics.org/jmc-assets/nivo-slider-css/nivo-slider.css
https://www.systemdynamics.org/jmc-assets/nivo-sli…o-themes/mc01/mc01.css
https://www.systemdynamics.org/jmc-assets/nivo-sli…o-themes/mc02/mc02.css
https://www.systemdynamics.org/templates/vinings-jt/css/editor.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://systemdynamics.org/
http://www.systemdynamics.org/
https://www.systemdynamics.org/

priority - 10Minify 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 96.2KiB (46% reduction).

Minifying https://www.systemdynamics.org/includes/js/jquery.min.js could save 43.9KiB (51% reduction) after compression.
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Minifying https://www.systemdynamics.org/includes/js/joomla.javascript.js could save 2KiB (41% reduction) after compression.
Minifying https://www.systemdynamics.org/jmc-assets/global-js/hoverIntent.js could save 693B (56% reduction) after compression.
Minifying https://www.systemdynamics.org/media/system/js/modal.js could save 687B (20% reduction) after compression.
Minifying https://www.systemdynamics.org/media/system/js/caption.js could save 477B (51% reduction) after compression.
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priority - 10Reduce server response time

In our test, your server responded in 0.85 seconds.

priority - 1Minify 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 7.5KiB (32% reduction).

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Minifying https://www.systemdynamics.org/includes/css/themes/base/ui.datepicker.css could save 177B (19% reduction) after compression.
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systemdynamics.org Mobile Resource Breakdown

Total Resources134
Number of Hosts14
Static Resources123
JavaScript Resources26
CSS Resources24

systemdynamics.org mobile page usability

Last tested: 2018-12-15

Mobile Usability Good
100/100

systemdynamics.org HTML validation

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Line: 1 Column: 1 - 121
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."

The “align” attribute on the “img” element is obsolete. Use CSS instead.

Line: 184 Column: 59 - 180
"... href="/"><img style="margin: 0px 0px 0px 0px;" title="" src="/assets/site/syds-logo.jpg" alt="" width="185" height="130" align=""/></a></..." Line: 316 Column: 2466 - 2542
"...="_blank"><img title="" src="/assets/sponsor-slider-imgs/c-WSP17.jpg" alt="" align=""/></a><a..." Line: 316 Column: 2618 - 2696
"...="_blank"><img title="" src="/assets/sponsor-slider-imgs/3EDGE18SQ.jpg" alt="" align=""/></a><a..." Line: 316 Column: 2829 - 2910
"...="_blank"><img title="" src="/assets/sponsor-slider-imgs/CSUchico18SQ.jpg" alt="" align=""/></a><a..." Line: 316 Column: 3009 - 3088
"...="_blank"><img title="" src="/assets/sponsor-slider-imgs/Sejong18SQ.jpg" alt="" align=""/></a><a..." Line: 316 Column: 3170 - 3249
"...="_blank"><img title="" src="/assets/sponsor-slider-imgs/anylogic17.jpg" alt="" align=""/></a><a..." Line: 316 Column: 3334 - 3449
"...="_blank"><img style="margin: 0px 0px 0px 0px;" title="" src="/assets/sponsor-slider-imgs/credithuman17.jpg" alt="" align=""/></a><a..." Line: 316 Column: 3506 - 3630
"...="_blank"><img style="margin: 0px 0px 0px 0px;" title="" src="/assets/sponsor-slider-imgs/DVu Sponsor Ad 2018 72.jpg" alt="" align=""/></a><a..." Line: 316 Column: 3689 - 3801
"...="_blank"><img style="margin: 0px 0px 0px 0px;" title="" src="/assets/sponsor-slider-imgs/Hirsch18SQ.jpg" alt="" align=""/></a><a..." Line: 316 Column: 3864 - 3977
"...="_blank"><img style="margin: 0px 0px 0px 0px;" title="" src="/assets/sponsor-slider-imgs/JLyneis18SQ.jpg" alt="" align=""/></a><a..." Line: 316 Column: 4055 - 4162
"...="_blank"><img style="margin: 0px 0px 0px 0px;" title="" src="/assets/sponsor-slider-imgs/MIT17.jpg" alt="" align=""/></a><a..." Line: 316 Column: 4216 - 4325
"...="_blank"><img style="margin: 0px 0px 0px 0px;" title="" src="/assets/sponsor-slider-imgs/MITRE17.jpg" alt="" align=""/></a><a..." Line: 316 Column: 4390 - 4506
"...="_blank"><img style="margin: 0px 0px 0px 0px;" title="" src="/assets/sponsor-slider-imgs/Northwater18SQ.jpg" alt="" align=""/></a><a..." Line: 316 Column: 4556 - 4666
"...="_blank"><img style="margin: 0px 0px 0px 0px;" title="" src="/assets/sponsor-slider-imgs/overit17.jpg" alt="" align=""/></a><a..." Line: 316 Column: 4738 - 4852
"...="_blank"><img style="margin: 0px 0px 0px 0px;" title="" src="/assets/sponsor-slider-imgs/RadboudU18SQ.jpg" alt="" align=""/></a><a..." Line: 316 Column: 4911 - 5024
"...="_blank"><img style="margin: 0px 0px 0px 0px;" title="" src="/assets/sponsor-slider-imgs/TUDelft18SQ.jpg" alt="" align=""/></a><a..." Line: 316 Column: 5088 - 5195
"...="_blank"><img style="margin: 0px 0px 0px 0px;" title="" src="/assets/sponsor-slider-imgs/WSP17.jpg" alt="" align=""/></a><a..." Line: 316 Column: 5305 - 5441
"...="_blank"><img style="margin: 0px 0px 0px 0px;" title="" src="https://sds.memberclicks.net/assets/sponsor-slider-imgs/c-PA18.jpg" alt="" align=""/></a><a..." Line: 316 Column: 5494 - 5615
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The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

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The “width” attribute on the “table” element is obsolete. Use CSS instead.

Line: 323 Column: 15 - 124
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The “align” attribute on the “table” element is obsolete. Use CSS instead.

Line: 323 Column: 15 - 124
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Warnings

The first occurrence of ID “current” was here.

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systemdynamics.org 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.

systemdynamics.org 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.