OPTIMIZATION-ONLINE.ORG Optimization Online

optimization-online.org Website Information

Daily Unique Visits: 4,175

Daily Page Views: 16,700

Income Per Day: $47

Estimated Value: $25,380

This website is located in United States and is using following IP address 128.104.153.111. See the complete list of popular websites hosted in United States.

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

Website optimization-online.org is using the following name servers:

  • adns1.doit.wisc.edu
  • adns3.doit.wisc.edu
  • adns2.doit.wisc.edu

and is probably hosted by WISC-MADISON-AS - University of Wisconsin Madison, US. See the full list of other websites hosted by WISC-MADISON-AS - University of Wisconsin Madison, US.

The highest website optimization-online.org position in Alexa rank database was 12921 and the lowest rank position was 998763. Current position of optimization-online.org in Alexa rank database is 300622.

Desktop speed score of optimization-online.org (95/100) is better than the results of 93.41% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of optimization-online.org (63/100) is better than the results of 9.16% of other sites and means that the page is not mobile-friendly.

Mobile speed score of optimization-online.org (89/100) is better than the results of 92.4% of other sites and shows that the landing page performance on mobile devices is excellent.

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optimization-online.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.


optimization-online.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: optimization-online.org
Registry Domain ID: 1c3774e329bd404ba237f1fd90ba4994-LROR
Registrar WHOIS Server: http://whois.domainpeople.com
Registrar URL: http://www.domainpeople.com
Updated Date: 2022-03-19T17:58:21Z
Creation Date: 2000-05-24T22:54:15Z
Registry Expiry Date: 2025-05-24T22:54:15Z
Registrar: DomainPeople, Inc.
Registrar IANA ID: 65
Registrar Abuse Contact Email: abuse@hostway.com
Registrar Abuse Contact Phone: +1.8664678929
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Data Protected
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: WA
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
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Admin Organization: REDACTED FOR PRIVACY
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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
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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: adns1.doit.wisc.edu
Name Server: adns2.doit.wisc.edu
Name Server: adns3.doit.wisc.edu
Name Server: adns4.doit.wisc.edu
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-10-08T16:40:17Z

optimization-online.org server information

Servers Location

optimization-online.org desktop page speed rank

Last tested: 2018-11-25


Desktop Speed Good
95/100

optimization-online.org Desktop Speed Test Quick Summary


priority - 2Eliminate render-blocking JavaScript and CSS in above-the-fold content

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

Optimize CSS Delivery of the following:

http://www.optimization-online.org/oo.css

priority - 2Leverage 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://www.optimization-online.org/images2/mos_minilogo.gif (expiration not specified)
http://www.optimization-online.org/images2/new-oo1.gif (expiration not specified)
http://www.optimization-online.org/oo.css (expiration not specified)

priority - 0Enable 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 4KiB (65% reduction).

Compressing http://www.optimization-online.org/ could save 3KiB (64% reduction).
Compressing http://www.optimization-online.org/oo.css could save 941B (70% reduction).

priority - 0Minify 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 996B (21% reduction).

Minifying http://www.optimization-online.org/ could save 996B (21% 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 200B (16% reduction).

Minifying http://www.optimization-online.org/oo.css could save 200B (16% reduction).

optimization-online.org Desktop Resource Breakdown

Total Resources5
Number of Hosts2
Static Resources3
CSS Resources1

optimization-online.org mobile page speed rank

Last tested: 2018-11-25


Mobile Speed Good
89/100

optimization-online.org Mobile Speed Test Quick Summary


priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

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

Optimize CSS Delivery of the following:

http://www.optimization-online.org/oo.css

priority - 2Leverage 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://www.optimization-online.org/images2/mos_minilogo.gif (expiration not specified)
http://www.optimization-online.org/images2/new-oo1.gif (expiration not specified)
http://www.optimization-online.org/oo.css (expiration not specified)

priority - 0Enable 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 4KiB (65% reduction).

Compressing http://www.optimization-online.org/ could save 3KiB (64% reduction).
Compressing http://www.optimization-online.org/oo.css could save 941B (70% reduction).

priority - 0Minify 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 996B (21% reduction).

Minifying http://www.optimization-online.org/ could save 996B (21% 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 200B (16% reduction).

Minifying http://www.optimization-online.org/oo.css could save 200B (16% reduction).

optimization-online.org Mobile Resource Breakdown

Total Resources5
Number of Hosts2
Static Resources3
CSS Resources1

optimization-online.org mobile page usability

Last tested: 2018-11-25


Mobile Usability Bad
63/100

optimization-online.org Mobile Usability Test Quick Summary


priority - 40Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

- renders only 4 pixels tall (10 CSS pixels).

Optimization Online renders only 6 pixels tall (16 CSS pixels).

is a repositor…related topics renders only 6 pixels tall (16 CSS pixels).

. renders only 5 pixels tall (12 CSS pixels).

Submissions to…are moderated renders only 5 pixels tall (12 CSS pixels).

to the Optimiz…ng that month. and 2 others render only 5 pixels tall (12 CSS pixels).

Optimization J…tes, Societies and 12 others render only 5 pixels tall (12 CSS pixels).

Announce your new report and 1 others render only 5 pixels tall (12 CSS pixels).

by posting it…t to check the and 1 others render only 5 pixels tall (12 CSS pixels).

Visitors renders only 6 pixels tall (16 CSS pixels).

Authors renders only 6 pixels tall (16 CSS pixels).

More about us renders only 6 pixels tall (16 CSS pixels).

Links renders only 6 pixels tall (16 CSS pixels).

Optimization O…s supported by and 2 others render only 3 pixels tall (9 CSS pixels).

Mathematical O…zation Society renders only 3 pixels tall (9 CSS pixels).

priority - 11Size 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="cgi-bin/digest.cgi">Subscribe, Unsubscribe</a> and 10 others are close to other tap targets.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

optimization-online.org HTML validation

Errors

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

Line: 2 Column: 1 - 39
"...<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html..."

Internal encoding declaration “iso-8859-1” disagrees with the actual encoding of the document (“utf-8”).

Line: 11 Column: 1 - 72
".../STYLE> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta..."

Bad value “text/html; charset=iso-8859-1” for attribute “content” on element “meta”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.

Line: 11 Column: 1 - 72
".../STYLE> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta..."

Attribute “leftmargin” not allowed on element “body” at this point.

Line: 17 Column: 1 - 68
"... </head> <body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0"><table..."

Attribute “topmargin” not allowed on element “body” at this point.

Line: 17 Column: 1 - 68
"... </head> <body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0"><table..."

The “marginwidth” attribute on the “body” element is obsolete. Use CSS instead.

Line: 17 Column: 1 - 68
"... </head> <body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0"><table..."

The “marginheight” attribute on the “body” element is obsolete. Use CSS instead.

Line: 17 Column: 1 - 68
"... </head> <body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0"><table..."

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

Line: 17 Column: 69 - 130
"...eight="0"><table width="804" border="0" cellspacing="0" cellpadding="3"> <tr..."

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

Line: 17 Column: 69 - 130
"...eight="0"><table width="804" border="0" cellspacing="0" cellpadding="3"> <tr..."

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

Line: 17 Column: 69 - 130
"...eight="0"><table width="804" border="0" cellspacing="0" cellpadding="3"> <tr..."

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

Line: 17 Column: 69 - 130
"...eight="0"><table width="804" border="0" cellspacing="0" cellpadding="3"> <tr..."

The “bgcolor” attribute on the “tr” element is obsolete. Use CSS instead.

Line: 18 Column: 131 - 24
"...dding="3"> <tr bgcolor="#FF9A31"> <..." Line: 25 Column: 8 - 24
"...d> </tr> <tr bgcolor="#FFFFFF"> <..." Line: 60 Column: 8 - 37
"...d> </tr> <tr valign="top" bgcolor="#FFFFFF"> <..." Line: 67 Column: 8 - 37
"...d> </tr> <tr valign="top" bgcolor="#FFFFFF"> <!-..."

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

Line: 19 Column: 25 - 40
"..."#FF9A31"> <td align="right" bgcolor="#FFFFFF"></td> ..." Line: 20 Column: 46 - 40
"...FFF"></td> <td align="right" bgcolor="#FFCF00"></td> ..." Line: 21 Column: 46 - 22
"...F00"></td> <td align="right"></td> ..." Line: 22 Column: 28 - 52
"...ght"></td> <td width="217" align="right" bgcolor="#FF6500"></td> ..." Line: 23 Column: 58 - 52
"...500"></td> <td width="250" align="right" bgcolor="#FFCF00"><font ..." Line: 26 Column: 25 - 34
"..."#FFFFFF"> <td colspan="3" align="right"><p><im..."

The “bgcolor” attribute on the “td” element is obsolete. Use CSS instead.

Line: 19 Column: 25 - 40
"..."#FF9A31"> <td align="right" bgcolor="#FFFFFF"></td> ..." Line: 20 Column: 46 - 40
"...FFF"></td> <td align="right" bgcolor="#FFCF00"></td> ..." Line: 22 Column: 28 - 52
"...ght"></td> <td width="217" align="right" bgcolor="#FF6500"></td> ..." Line: 23 Column: 58 - 52
"...500"></td> <td width="250" align="right" bgcolor="#FFCF00"><font ..." Line: 38 Column: 20 - 36
"...ign="top"> <td width="9" bgcolor="#FFFFFF">&nbsp;..." Line: 39 Column: 48 - 54
"...nbsp;</td> <td width="162" valign="middle" bgcolor="#FFCC00"><stron..." Line: 40 Column: 126 - 54
"...rong></td> <td width="136" valign="middle" bgcolor="#FF9933"><stron..." Line: 41 Column: 125 - 42
"...rong></td> <td valign="middle" bgcolor="#FF6600"><stron..." Line: 42 Column: 120 - 42
"...rong></td> <td valign="middle" bgcolor="#FFCF00"><stron..." Line: 45 Column: 20 - 26
"...ign="top"> <td bgcolor="#FFFFFF">&nbsp;..." Line: 46 Column: 38 - 41
"...nbsp;</td> <td bgcolor="#FFFF99" class="medium"> ..." Line: 51 Column: 25 - 41
"...;</p></td> <td bgcolor="#FFCC66" class="medium"><a hre..." Line: 54 Column: 57 - 41
"... </td> <td bgcolor="#FF9933" class="medium"><a hre..." Line: 58 Column: 58 - 41
"...k</a></td> <td bgcolor="#FFFF9C" class="medium"><a hre..."

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

Line: 22 Column: 28 - 52
"...ght"></td> <td width="217" align="right" bgcolor="#FF6500"></td> ..." Line: 23 Column: 58 - 52
"...500"></td> <td width="250" align="right" bgcolor="#FFCF00"><font ..." Line: 38 Column: 20 - 36
"...ign="top"> <td width="9" bgcolor="#FFFFFF">&nbsp;..." Line: 39 Column: 48 - 54
"...nbsp;</td> <td width="162" valign="middle" bgcolor="#FFCC00"><stron..." Line: 40 Column: 126 - 54
"...rong></td> <td width="136" valign="middle" bgcolor="#FF9933"><stron..."

The “font” element is obsolete. Use CSS instead.

Line: 23 Column: 53 - 83
"..."#FFCF00"><font color="#FFCF00" size="1">-</td>..." Line: 39 Column: 75 - 96
"...ass="big"><font color="#F17528">Visito..." Line: 40 Column: 75 - 96
"...ass="big"><font color="#E95C18">Author..." Line: 41 Column: 63 - 84
"...ass="big"><font color="#FEDD82">More a..." Line: 42 Column: 63 - 84
"...ass="big"><font color="#F3821D">Links<..."

End tag “td” seen, but there were open elements.

Line: 23 Column: 85 - 89
"...size="1">-</td> </t..."

Unclosed element “font”.

Line: 23 Column: 53 - 83
"..."#FFCF00"><font color="#FFCF00" size="1">-</td>..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 26 Column: 38 - 92
"...right"><p><img src="images2/new-oo1.gif" width="292" height="85"> </p> ..."

The “valign” attribute on the “td” element is obsolete. Use CSS instead.

Line: 29 Column: 25 - 33
"...;</p></td> <td colspan="2" valign="top"><p><sp..." Line: 39 Column: 48 - 54
"...nbsp;</td> <td width="162" valign="middle" bgcolor="#FFCC00"><stron..." Line: 40 Column: 126 - 54
"...rong></td> <td width="136" valign="middle" bgcolor="#FF9933"><stron..." Line: 41 Column: 125 - 42
"...rong></td> <td valign="middle" bgcolor="#FF6600"><stron..." Line: 42 Column: 120 - 42
"...rong></td> <td valign="middle" bgcolor="#FFCF00"><stron..." Line: 61 Column: 38 - 36
"..."#FFFFFF"> <td colspan="3" valign="middle"><div a..."

The “valign” attribute on the “tr” element is obsolete. Use CSS instead.

Line: 37 Column: 8 - 19
"...d> </tr> <tr valign="top"> <..." Line: 44 Column: 8 - 19
"...d> </tr> <tr valign="top"> <..." Line: 60 Column: 8 - 37
"...d> </tr> <tr valign="top" bgcolor="#FFFFFF"> <..." Line: 67 Column: 8 - 37
"...d> </tr> <tr valign="top" bgcolor="#FFFFFF"> <!-..."

No “p” element in scope but a “p” end tag seen.

Line: 49 Column: 72 - 75
"...itory</a> </p> ..."

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

Line: 61 Column: 37 - 70
"...="middle"><div align="right" class="footer">Optimi..."

Row 6 of a row group established by a “tbody” element has no cells beginning on it.

Line: 72 Column: 8 - 7
"...d> --> </tr> </tab..."

Warnings

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Line: 64 Column: 43 - 152
"...hopt.org"><img src="images2/mos_minilogo.gif" alt="Mathematical Optimization Society" width="57" height="56" border="0"></a> <..."

A table row was 0 columns wide, which is less than the column count established by the first row (5).

Line: 72 Column: 8 - 7
"...d> --> </tr> </tab..."

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www.optimization-onlines.org
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optimization-online.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.


optimization-online.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.