CLASSROOM20.COM Classroom 2.0

classroom20.com Website Information

Daily Unique Visits: 4,352

Daily Page Views: 17,408

Income Per Day: $49

Estimated Value: $26,460

This website is located in United States and is using following IP address 208.82.16.68. See the complete list of popular websites hosted in United States.

classroom20.com is registered under .COM top-level domain. Please check other sites in .COM zone.

Website classroom20.com is using the following name servers:

  • ns10.domaincontrol.com
  • ns09.domaincontrol.com

and is probably hosted by NING - Ning Interactive, Inc., US. See the full list of other websites hosted by NING - Ning Interactive, Inc., US.

The highest website classroom20.com position in Alexa rank database was 38197 and the lowest rank position was 993062. Current position of classroom20.com in Alexa rank database is 288386.

Desktop speed score of classroom20.com (61/100) is better than the results of 37.05% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of classroom20.com (59/100) is better than the results of 2.69% of other sites and means that the page is not mobile-friendly.

Mobile speed score of classroom20.com (45/100) is better than the results of 25.64% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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classroom20.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.


classroom20.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: CLASSROOM20.COM
Registry Domain ID: 664830728_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2018-04-10T04:57:37Z
Creation Date: 2006-11-09T19:24:22Z
Registry Expiry Date: 2024-11-09T19:24:22Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: 480-624-2505
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: NS09.DOMAINCONTROL.COM
Name Server: NS10.DOMAINCONTROL.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-05-12T13:14:28Z

classroom20.com server information

Servers Location

classroom20.com desktop page speed rank

Last tested: 2018-11-20


Desktop Speed Bad
61/100

classroom20.com Desktop Speed Test Quick Summary


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classroom20.com Desktop Resource Breakdown

Total Resources116
Number of Hosts14
Static Resources80
JavaScript Resources22
CSS Resources9

classroom20.com mobile page speed rank

Last tested: 2018-11-20


Mobile Speed Bad
45/100

classroom20.com Mobile Speed Test Quick Summary


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priority - 4Leverage browser caching

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priority - 1Minify JavaScript

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priority - 0Minify CSS

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classroom20.com Mobile Resource Breakdown

Total Resources116
Number of Hosts14
Static Resources81
JavaScript Resources22
CSS Resources9

classroom20.com mobile page usability

Last tested: 2018-11-20


Mobile Usability Bad
59/100

classroom20.com 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.

Sign Up and 1 others render only 5 pixels tall (12 CSS pixels).

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

Learning Revolution and 9 others render only 6 pixels tall (16 CSS pixels).

Groups - Find…Start Your Own and 19 others render only 4 pixels tall (11 CSS pixels).

View All and 4 others render only 5 pixels tall (12 CSS pixels).

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to participate…200 countries! and 4 others render only 5 pixels tall (12 CSS pixels).

Library 2.018…ber 17th, 2018 and 8 others render only 5 pixels tall (12 CSS pixels).

Standardized t…sroom 2.0, see and 2 others render only 5 pixels tall (12 CSS pixels).
By Subject: and 2 others render only 5 pixels tall (12 CSS pixels).
Biliteracy-Bilingual Education and 63 others render only 5 pixels tall (12 CSS pixels).
("videoconferencing") and 63 others render only 5 pixels tall (12 CSS pixels).
Welcome to Classroom20.com and 1 others render only 5 pixels tall (12 CSS pixels).

Photos: and 2 others render only 5 pixels tall (12 CSS pixels).
sign up renders only 5 pixels tall (12 CSS pixels).

Michelle Pacan…ecture to Me?" and 15 others render only 5 pixels tall (13 CSS pixels).

Added by and 15 others render only 5 pixels tall (12 CSS pixels).

Amy Brinkley and 5 others render only 5 pixels tall (12 CSS pixels).

2 and 5 others render only 5 pixels tall (12 CSS pixels).

10 and 5 others render only 5 pixels tall (12 CSS pixels).

Add a Discussion and 2 others render only 5 pixels tall (12 CSS pixels).

SPN 119- Fall…unidad hispana and 5 others render only 5 pixels tall (13 CSS pixels).

Started by Jeni Shortly in and 17 others render only 4 pixels tall (11 CSS pixels).

The Pedagogy o…lture Teaching and 77 others render only 4 pixels tall (11 CSS pixels).

40 and 15 others render only 4 pixels tall (11 CSS pixels).

0 and 15 others render only 4 pixels tall (11 CSS pixels).

Likes and 15 others render only 4 pixels tall (11 CSS pixels).

Bonjour! Je m'…e authentique… and 28 others render only 5 pixels tall (13 CSS pixels).

Software Giveaway of the Day. and 28 others render only 5 pixels tall (13 CSS pixels).

1 and 6 others render only 5 pixels tall (13 CSS pixels).
16 and 6 others render only 5 pixels tall (13 CSS pixels).
in the group and 23 others render only 4 pixels tall (11 CSS pixels).
"Hola Maria, Y…ic variation…" and 7 others render only 5 pixels tall (12 CSS pixels).
11 hours ago and 7 others render only 4 pixels tall (11 CSS pixels).
More... renders only 4 pixels tall (11 CSS pixels).
Entrada 6: "Wh…ntérese aquí!" and 9 others render only 5 pixels tall (13 CSS pixels).
Posted by and 19 others render only 4 pixels tall (11 CSS pixels).
Classroom 2.0 and 1 others render only 5 pixels tall (13 CSS pixels).

Sign Up renders only 6 pixels tall (16 CSS pixels).

or renders only 5 pixels tall (13 CSS pixels).

Sign In renders only 5 pixels tall (13 CSS pixels).

Or sign in with: renders only 4 pixels tall (11 CSS pixels).

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priority - 17Size 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="xn_bar_menu_search_submit" href="#">Search</a> is close to 1 other tap targets.

The tap target <a href="https://www.cl…zation/signUp?">Sign Up</a> and 1 others are close to other tap targets.

The tap target <a href="/">Main</a> is close to 4 other tap targets.

The tap target <a href="/profiles">My Page</a> and 9 others are close to other tap targets.

The tap target <div class="xg_module module_members">Members…View All</div> and 6 others are close to other tap targets.

The tap target <div class="xg_module module_members">Members…View All</div> and 4 others are close to other tap targets.

The tap target <a href="https://www.cl…files/members/">View All</a> and 4 others are close to other tap targets.

The tap target <div class="xg_module ht…_text xg_reset">A Learning Revolution Project</div> and 12 others are close to other tap targets.

The tap target <a href="http://live.cl…resources.html">Archives and Resources</a> and 7 others are close to other tap targets.

The tap target <input type="text" name="q"> and 3 others are close to other tap targets.
The tap target <input type="submit" name="sa"> and 3 others are close to other tap targets.
The tap target <a href="../../../../..…g?tag=blogging">Blogging</a> and 62 others are close to other tap targets.
The tap target <a href="http://www.cla…zation/signUp?">sign up</a> is close to 2 other tap targets.

The tap target <a href="https://www.cl…e-learning-2-0">Lee Rainie: Learning 2.0</a> and 18 others are close to other tap targets.

The tap target <a href="http://www.cla…_2celrsa6bxcme" class="xg_lightfont">Amy Brinkley</a> and 5 others are close to other tap targets.

The tap target <a href="https://www.cl…g-2-0#comments" class="xg_sprite xg_sprite-comment">2 Comments</a> and 5 others are close to other tap targets.

The tap target <a href="https://www.cl…e-learning-2-0" class="xg_sprite like…nk-3 like-link">10 Likes</a> and 5 others are close to other tap targets.

The tap target <a href="https://www.cl…chooseUploader" class="xg_sprite xg_sprite-add">Add Videos</a> and 2 others are close to other tap targets.

The tap target <a href="https://www.cl…for-french-1st">Looking for Fr…y FSL students</a> and 7 others are close to other tap targets.

The tap target <a href="https://www.cl…istForCategory">Help or Feedback Needed</a> and 72 others are close to other tap targets.

The tap target <a href="https://www.cl…h-1st#comments" class="xg_sprite xg_sprite-comment">6 Replies</a> and 15 others are close to other tap targets.

The tap target <a href="https://www.cl…for-french-1st" class="xg_sprite like…nk-3 like-link">0 Likes</a> and 15 others are close to other tap targets.

The tap target <a href="https://www.cl…for-french-1st" class="xg_sprite like…nk-3 like-link">0 Likes</a> and 15 others are close to other tap targets.

The tap target <a href="https://www.cl…for-french-1st" class="xj_expandable continue-link">Continue</a> and 5 others are close to other tap targets.

The tap target <a href="https://www.cl…g?tag=exchange">exchange</a> and 22 others are close to other tap targets.

The tap target <a href="https://www.cl…chool#comments" class="xg_sprite xg_sprite-comment">1 Comment</a> and 6 others are close to other tap targets.
The tap target <a href="https://www.cl…condary-school" class="xg_sprite like…nk-3 like-link">16 Likes</a> and 6 others are close to other tap targets.
The tap target <div id="xg_network_activity" class="xg_module xg_m…tent column_2">Latest Activit…RSS</div> is close to 2 other tap targets.
The tap target <a href="/profile/Brian…ource=activity"></a> and 2 others are close to other tap targets.
The tap target <button class="xj_see_more xg…activity_items">More...</button> is close to 3 other tap targets.
The tap target <a href="https://www.cl…g/list?fmt=rss" class="xg_icon xg_icon-rss">RSS</a> is close to 3 other tap targets.
The tap target <a href="https://www.cl…presencia-de-c">Entrada 6: Méx…les de drogas!</a> and 7 others are close to other tap targets.
The tap target <a href="https://www.cl…zation/signUp?">Sign Up</a> is close to 1 other tap targets.

The tap target <a href="https://www.cl…sroom20.com%2F">Sign In</a> is close to 1 other tap targets.

The tap target <a href="https://classr…der%3Dfacebook"></a> is close to 4 other tap targets.

The tap target <a href="https://classr…der%3Dfacebook"></a> and 1 others are close to other tap targets.

The tap target <a href="https://classr…ider%3Dtwitter"></a> is close to 5 other tap targets.

The tap target <a href="https://classr…ovider%3Dyahoo"></a> is close to 5 other tap targets.

The tap target <a href="http://www.lib…e/socialcrisis"></a> and 1 others are close to other tap targets.

The tap target <embed class="xj_badge_embed"> is close to 1 other tap targets.

The tap target <a href="/profile/SteveHargadon">Steve Hargadon</a> and 4 others are close to other tap targets.
The tap target <a href="https://www.ning.com/" class="poweredBy-logo"></a> is close to 1 other tap targets.
The tap target <a href="/main/authoriz…gnIn?chat=true" class="xg_info xg_info_full">Sign in to chat!</a> is close to 4 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.

priority - 3Avoid plugins

Your page uses plugins, which prevents portions of your page from being used on many platforms. Find alternatives for plugin based content to increase compatibility.

Find alternatives for the following Flash plugins.

https://static.ning.com/socialnetworkmain/widgets/…f?xn_version=124632088 (173 x 4).

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 981 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

The element <a href="/main/authoriz…gnIn?chat=true" class="xg_info xg_info_full">Sign in to chat!</a> falls outside the viewport.

classroom20.com HTML validation

Errors

Attribute “xmlns:og” not allowed here.

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"...TYPE html> <html lang="en" xmlns:og="http://ogp.me/ns#"> <..."

Bad value “screen,projection” for attribute “media” on element “style”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification.

Line: 90 Column: 1 - 49
"...th=no" /> <style type="text/css" media="screen,projection"> #xg_n..." Line: 101 Column: 1 - 49
"...</script> <style type="text/css" media="screen,projection"> @impo..." Line: 108 Column: 1 - 49
"...</style> <style type="text/css" media="screen,projection"> @impo..." Line: 113 Column: 1 - 49
"...</style> <style type="text/css" media="screen,projection"> @impo..."

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

Line: 167 Column: 29 - 188
"... <input type="text" name="q" id="xn_bar_menu_search_query" value="Search Classroom 2.0" _hint="Search Classroom 2.0" accesskey="4" class="text xj_search_hint" /> ..."

Attribute “dojotype” not allowed on element “li” at this point.

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"...></a></li><li dojoType="SubTabHover" id="xg_tab_members" class="xg_subtab"><a hre..." Line: 189 Column: 1149 - 1209
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".../div></li><li dojoType="SubTabHover" id="xg_tab_xn4" class="xg_subtab"><a hre..."

Attribute “_maxembedwidth” not allowed on element “div” at this point.

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"...t-child'> <div _maxEmbedWidth="730" _columnCount="3" class='xg_3col first-child'> <div ..." Line: 200 Column: 1 - 96
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"...sp;</div> <div _maxEmbedWidth="173" _columnCount="1" class='xg_1col last-child'> &nbsp..."

Attribute “_columncount” not allowed on element “div” at this point.

Line: 198 Column: 1 - 72
"...t-child'> <div _maxEmbedWidth="730" _columnCount="3" class='xg_3col first-child'> <div ..." Line: 200 Column: 1 - 96
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"...sp;</div> <div _maxEmbedWidth="492" _columnCount="2" id="xg_layout_column_2" class='xg_2col last-child'> <div ..." Line: 835 Column: 1 - 2
"... </div> <div id="xg_network_activity" class="xg_module xg_module_activity indented_content column_2" dojotype="ActivityModule" data-module_name="activity" _isProfile="" _isAdmin="" _activityOptionsAvailable="1" _columnCount="2" _maxEmbedWidth="492" _embedLocatorId="117/homepage/index" _refreshUrl="http://www.classroom20.com/activity/embed/refresh?id=117%2Fhomepage%2Findex&amp;xn_out=json" _activitynum="8" data-owner-name="" data-excerpt-length="250" data-get-items-url="http://www.classroom20.com/activity/index/getActivityItems?xn_out=json" > ..." Line: 1025 Column: 1 - 71
"...sp;</div> <div _maxEmbedWidth="173" _columnCount="1" class='xg_1col last-child'> &nbsp..."

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

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Stray end tag “input”.

Line: 301 Column: 80 - 87
"..."hidden" ></input> <inpu..." Line: 301 Column: 135 - 142
"..."hidden" ></input> <inpu..." Line: 301 Column: 183 - 190
"...e="text" ></input> <inpu..." Line: 301 Column: 239 - 246
"..."submit" ></input></div>..." Line: 392 Column: 46 - 53
"...e="text" ></input></td> ..." Line: 393 Column: 38 - 45
"..."submit" ></input></td> ..." Line: 403 Column: 46 - 53
"...e="text" ></input></td> ..." Line: 404 Column: 38 - 45
"..."submit" ></input></td> ..." Line: 414 Column: 46 - 53
"...e="text" ></input></td> ..." Line: 415 Column: 38 - 45
"..."submit" ></input></td> ..."

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

Line: 312 Column: 1 - 22
"...>.)<br /> <font color="#000099"><u><br..." Line: 344 Column: 1 - 22
"...li> </ul> <font color="#000099"><u>By ..." Line: 363 Column: 1 - 22
"...li> </ul> <font color="#000099"><u>By ..." Line: 386 Column: 1 - 22
"...li> </ul> <font color="#000099"><b>Sea..." Line: 428 Column: 24 - 45
"...p><strong><font color="#000099">Welcom..."

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

Line: 391 Column: 5 - 17
"...body> <tr> <td align="left">Forum:..." Line: 402 Column: 5 - 17
"...body> <tr> <td align="left">Photos..." Line: 413 Column: 5 - 17
"...body> <tr> <td align="left">Videos..."

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

Line: 439 Column: 13 - 20
"... <center><a hre..." Line: 1079 Column: 13 - 20
"... <center>We wan..." Line: 1081 Column: 1 - 8
"...></a></p> <center><a hre..."

Attribute “_snid” not allowed on element “a” at this point.

Line: 588 Column: 17 - 118
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"... <a href="http://www.classroom20.com/forum/topics/steam-workshop-issues-mac" _snid="649749:Topic:1172176">Steam ..." Line: 620 Column: 17 - 131
"... <a href="http://www.classroom20.com/forum/topics/import-images-as-planes-not-working" _snid="649749:Topic:1172174">Import..." Line: 636 Column: 17 - 160
"... <a href="http://www.classroom20.com/forum/topics/leo-s-question-about-distance-philosophical-issues-underlying-gr" _snid="649749:Topic:1172162">Leo&#0..." Line: 652 Column: 17 - 138
"... <a href="http://www.classroom20.com/forum/topics/how-do-you-manage-you-issues-and-revisions" _snid="649749:Topic:1172050">HOW DO..." Line: 668 Column: 17 - 152
"... <a href="http://www.classroom20.com/forum/topics/problem-on-launching-an-virtual-class-from-saba-learning" _snid="649749:Topic:1172159">Proble..." Line: 869 Column: 25 - 128
"... <h3><a href="http://www.classroom20.com/profiles/blogs/lecci-n-10-opci-n-b" _snid="649749:BlogPost:1171729">Lecci&..." Line: 884 Column: 25 - 127
"... <h3><a href="http://www.classroom20.com/profiles/blogs/lecci-n-9-opci-n-a" _snid="649749:BlogPost:1171726">Lecci&..." Line: 899 Column: 25 - 117
"... <h3><a href="http://www.classroom20.com/profiles/blogs/blog-4-6" _snid="649749:BlogPost:1171498">Blog #..." Line: 914 Column: 25 - 132
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"... <h3><a href="http://www.classroom20.com/profiles/blogs/lecci-n-8-opci-n-a-opini-n" _snid="649749:BlogPost:1170943">lecci&..." Line: 944 Column: 25 - 129
"... <h3><a href="http://www.classroom20.com/profiles/blogs/lecci-n-8-opci-n-a-1" _snid="649749:BlogPost:1171004">lecci&..." Line: 959 Column: 25 - 135
"... <h3><a href="http://www.classroom20.com/profiles/blogs/lecci-n-7-opci-n-b-opinion" _snid="649749:BlogPost:1170822">lecci&..." Line: 974 Column: 25 - 129
"... <h3><a href="http://www.classroom20.com/profiles/blogs/lecci-n-7-opci-n-b-1" _snid="649749:BlogPost:1170821">Lecci&..." Line: 989 Column: 25 - 131
"... <h3><a href="http://www.classroom20.com/profiles/blogs/blog-3-evento-cultural" _snid="649749:BlogPost:1170983">Blog #..." Line: 1004 Column: 25 - 117
"... <h3><a href="http://www.classroom20.com/profiles/blogs/blog-3-5" _snid="649749:BlogPost:1170371">#Blog ..."

Attribute “dojotype” not allowed on element “a” at this point.

Line: 683 Column: 54 - 579
"...ss="left"><a href="http://www.classroom20.com/main/authorization/signUp?target=http%3A%2F%2Fwww.classroom20.com%2Fforum%2Ftopic%2Fnew%3Ftarget%3Dhttp%253A%252F%252Fwww.classroom20.com%252F" dojoType="PromptToJoinLink" _joinPromptText="Please sign up or sign in to complete this step." _hasSignUp="true" _signInUrl="http://www.classroom20.com/main/authorization/signIn?target=http%3A%2F%2Fwww.classroom20.com%2Fforum%2Ftopic%2Fnew%3Ftarget%3Dhttp%253A%252F%252Fwww.classroom20.com%252F" class="xg_sprite xg_sprite-add xj_new_topic_link">Add a ..." Line: 1149 Column: 25 - 394
"... <a href="http://www.classroom20.com/main/authorization/signUp?target=http%3A%2F%2Fwww.classroom20.com%2Fmain%2Findex%2Freport" dojoType="PromptToJoinLink" _joinPromptText="Please sign up or sign in to complete this step." _hasSignUp="true" _signInUrl="http://www.classroom20.com/main/authorization/signIn?target=http%3A%2F%2Fwww.classroom20.com%2Fmain%2Findex%2Freport">Report..."

Attribute “_joinprompttext” not allowed on element “a” at this point.

Line: 683 Column: 54 - 579
"...ss="left"><a href="http://www.classroom20.com/main/authorization/signUp?target=http%3A%2F%2Fwww.classroom20.com%2Fforum%2Ftopic%2Fnew%3Ftarget%3Dhttp%253A%252F%252Fwww.classroom20.com%252F" dojoType="PromptToJoinLink" _joinPromptText="Please sign up or sign in to complete this step." _hasSignUp="true" _signInUrl="http://www.classroom20.com/main/authorization/signIn?target=http%3A%2F%2Fwww.classroom20.com%2Fforum%2Ftopic%2Fnew%3Ftarget%3Dhttp%253A%252F%252Fwww.classroom20.com%252F" class="xg_sprite xg_sprite-add xj_new_topic_link">Add a ..." Line: 1149 Column: 25 - 394
"... <a href="http://www.classroom20.com/main/authorization/signUp?target=http%3A%2F%2Fwww.classroom20.com%2Fmain%2Findex%2Freport" dojoType="PromptToJoinLink" _joinPromptText="Please sign up or sign in to complete this step." _hasSignUp="true" _signInUrl="http://www.classroom20.com/main/authorization/signIn?target=http%3A%2F%2Fwww.classroom20.com%2Fmain%2Findex%2Freport">Report..."

Attribute “_hassignup” not allowed on element “a” at this point.

Line: 683 Column: 54 - 579
"...ss="left"><a href="http://www.classroom20.com/main/authorization/signUp?target=http%3A%2F%2Fwww.classroom20.com%2Fforum%2Ftopic%2Fnew%3Ftarget%3Dhttp%253A%252F%252Fwww.classroom20.com%252F" dojoType="PromptToJoinLink" _joinPromptText="Please sign up or sign in to complete this step." _hasSignUp="true" _signInUrl="http://www.classroom20.com/main/authorization/signIn?target=http%3A%2F%2Fwww.classroom20.com%2Fforum%2Ftopic%2Fnew%3Ftarget%3Dhttp%253A%252F%252Fwww.classroom20.com%252F" class="xg_sprite xg_sprite-add xj_new_topic_link">Add a ..." Line: 1149 Column: 25 - 394
"... <a href="http://www.classroom20.com/main/authorization/signUp?target=http%3A%2F%2Fwww.classroom20.com%2Fmain%2Findex%2Freport" dojoType="PromptToJoinLink" _joinPromptText="Please sign up or sign in to complete this step." _hasSignUp="true" _signInUrl="http://www.classroom20.com/main/authorization/signIn?target=http%3A%2F%2Fwww.classroom20.com%2Fmain%2Findex%2Freport">Report..."

Attribute “_signinurl” not allowed on element “a” at this point.

Line: 683 Column: 54 - 579
"...ss="left"><a href="http://www.classroom20.com/main/authorization/signUp?target=http%3A%2F%2Fwww.classroom20.com%2Fforum%2Ftopic%2Fnew%3Ftarget%3Dhttp%253A%252F%252Fwww.classroom20.com%252F" dojoType="PromptToJoinLink" _joinPromptText="Please sign up or sign in to complete this step." _hasSignUp="true" _signInUrl="http://www.classroom20.com/main/authorization/signIn?target=http%3A%2F%2Fwww.classroom20.com%2Fforum%2Ftopic%2Fnew%3Ftarget%3Dhttp%253A%252F%252Fwww.classroom20.com%252F" class="xg_sprite xg_sprite-add xj_new_topic_link">Add a ..." Line: 1149 Column: 25 - 394
"... <a href="http://www.classroom20.com/main/authorization/signUp?target=http%3A%2F%2Fwww.classroom20.com%2Fmain%2Findex%2Freport" dojoType="PromptToJoinLink" _joinPromptText="Please sign up or sign in to complete this step." _hasSignUp="true" _signInUrl="http://www.classroom20.com/main/authorization/signIn?target=http%3A%2F%2Fwww.classroom20.com%2Fmain%2Findex%2Freport">Report..."

Attribute “dojotype” not allowed on element “div” at this point.

Line: 835 Column: 1 - 2
"... </div> <div id="xg_network_activity" class="xg_module xg_module_activity indented_content column_2" dojotype="ActivityModule" data-module_name="activity" _isProfile="" _isAdmin="" _activityOptionsAvailable="1" _columnCount="2" _maxEmbedWidth="492" _embedLocatorId="117/homepage/index" _refreshUrl="http://www.classroom20.com/activity/embed/refresh?id=117%2Fhomepage%2Findex&amp;xn_out=json" _activitynum="8" data-owner-name="" data-excerpt-length="250" data-get-items-url="http://www.classroom20.com/activity/index/getActivityItems?xn_out=json" > ..."

Attribute “_isprofile” not allowed on element “div” at this point.

Line: 835 Column: 1 - 2
"... </div> <div id="xg_network_activity" class="xg_module xg_module_activity indented_content column_2" dojotype="ActivityModule" data-module_name="activity" _isProfile="" _isAdmin="" _activityOptionsAvailable="1" _columnCount="2" _maxEmbedWidth="492" _embedLocatorId="117/homepage/index" _refreshUrl="http://www.classroom20.com/activity/embed/refresh?id=117%2Fhomepage%2Findex&amp;xn_out=json" _activitynum="8" data-owner-name="" data-excerpt-length="250" data-get-items-url="http://www.classroom20.com/activity/index/getActivityItems?xn_out=json" > ..."

Attribute “_isadmin” not allowed on element “div” at this point.

Line: 835 Column: 1 - 2
"... </div> <div id="xg_network_activity" class="xg_module xg_module_activity indented_content column_2" dojotype="ActivityModule" data-module_name="activity" _isProfile="" _isAdmin="" _activityOptionsAvailable="1" _columnCount="2" _maxEmbedWidth="492" _embedLocatorId="117/homepage/index" _refreshUrl="http://www.classroom20.com/activity/embed/refresh?id=117%2Fhomepage%2Findex&amp;xn_out=json" _activitynum="8" data-owner-name="" data-excerpt-length="250" data-get-items-url="http://www.classroom20.com/activity/index/getActivityItems?xn_out=json" > ..."

Attribute “_activityoptionsavailable” not allowed on element “div” at this point.

Line: 835 Column: 1 - 2
"... </div> <div id="xg_network_activity" class="xg_module xg_module_activity indented_content column_2" dojotype="ActivityModule" data-module_name="activity" _isProfile="" _isAdmin="" _activityOptionsAvailable="1" _columnCount="2" _maxEmbedWidth="492" _embedLocatorId="117/homepage/index" _refreshUrl="http://www.classroom20.com/activity/embed/refresh?id=117%2Fhomepage%2Findex&amp;xn_out=json" _activitynum="8" data-owner-name="" data-excerpt-length="250" data-get-items-url="http://www.classroom20.com/activity/index/getActivityItems?xn_out=json" > ..."

Attribute “_embedlocatorid” not allowed on element “div” at this point.

Line: 835 Column: 1 - 2
"... </div> <div id="xg_network_activity" class="xg_module xg_module_activity indented_content column_2" dojotype="ActivityModule" data-module_name="activity" _isProfile="" _isAdmin="" _activityOptionsAvailable="1" _columnCount="2" _maxEmbedWidth="492" _embedLocatorId="117/homepage/index" _refreshUrl="http://www.classroom20.com/activity/embed/refresh?id=117%2Fhomepage%2Findex&amp;xn_out=json" _activitynum="8" data-owner-name="" data-excerpt-length="250" data-get-items-url="http://www.classroom20.com/activity/index/getActivityItems?xn_out=json" > ..."

Attribute “_refreshurl” not allowed on element “div” at this point.

Line: 835 Column: 1 - 2
"... </div> <div id="xg_network_activity" class="xg_module xg_module_activity indented_content column_2" dojotype="ActivityModule" data-module_name="activity" _isProfile="" _isAdmin="" _activityOptionsAvailable="1" _columnCount="2" _maxEmbedWidth="492" _embedLocatorId="117/homepage/index" _refreshUrl="http://www.classroom20.com/activity/embed/refresh?id=117%2Fhomepage%2Findex&amp;xn_out=json" _activitynum="8" data-owner-name="" data-excerpt-length="250" data-get-items-url="http://www.classroom20.com/activity/index/getActivityItems?xn_out=json" > ..."

Attribute “_activitynum” not allowed on element “div” at this point.

Line: 835 Column: 1 - 2
"... </div> <div id="xg_network_activity" class="xg_module xg_module_activity indented_content column_2" dojotype="ActivityModule" data-module_name="activity" _isProfile="" _isAdmin="" _activityOptionsAvailable="1" _columnCount="2" _maxEmbedWidth="492" _embedLocatorId="117/homepage/index" _refreshUrl="http://www.classroom20.com/activity/embed/refresh?id=117%2Fhomepage%2Findex&amp;xn_out=json" _activitynum="8" data-owner-name="" data-excerpt-length="250" data-get-items-url="http://www.classroom20.com/activity/index/getActivityItems?xn_out=json" > ..."

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

Line: 1035 Column: 47 - 51
"...st-child"><big><stron..."

Attribute “_embedcode” not allowed on element “div” at this point.

Line: 1111 Column: 6 - 17
"...div> <div class="xg_module_body xj_badge_body xj_embed_container" data-module_name="badge" _embedCode="&lt;object classid=&quot;clsid:D27CDB6E-AE6D-11cf-96B8-444553540000&quot; codebase=&quot;http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab&quot; id=&quot;badgeSwf&quot; width=&quot;100%&quot; height=&quot;174&quot; &gt; &lt;param name=&quot;movie&quot; value=&quot;http://static.ning.com/socialnetworkmain/widgets/index/swf/badge.swf?xn_version=124632088&quot; /&gt; &lt;param name=&quot;quality&quot; value=&quot;high&quot; /&gt; &lt;param name=&quot;bgcolor&quot; value=&quot;#E9EEE8&quot; /&gt; &lt;param name=&quot;flashvars&quot; value=&quot;hideVisit=1&amp;amp;config=http%3A%2F%2Fwww.classroom20.com%2Fmain%2Fbadge%2FshowPlayerConfig%3Fsize%3Dmedium%26v%3D15&amp;amp;backgroundColor=0xE9EEE8&amp;amp;textColor=0x797979&quot; /&gt; &lt;param name=&quot;wmode&quot; value=&quot;opaque&quot;/&gt; &lt;param name=&quot;allowScriptAccess&quot; value=&quot;always&quot; /&gt; &lt;embed class=&quot;xj_badge_embed&quot; src=&quot;http://static.ning.com/socialnetworkmain/widgets/index/swf/badge.swf?xn_version=124632088&quot; quality=high bgColor=&quot;#E9EEE8&quot; width=&quot;100%&quot; height=&quot;174&quot; name=&quot;badgeSwf&quot; type=&quot;application/x-shockwave-flash&quot; pluginspage=&quot;http://www.macromedia.com/go/getflashplayer&quot; wmode=&quot;opaque&quot; FlashVars=&quot;hideVisit=1&amp;amp;config=http%3A%2F%2Fwww.classroom20.com%2Fmain%2Fbadge%2FshowPlayerConfig%3Fsize%3Dmedium%26v%3D15&amp;amp;backgroundColor=0xE9EEE8&amp;amp;textColor=0x797979&quot; scale=&quot;noscale&quot; allowScriptAccess=&quot;always&quot;&gt; &lt;/embed&gt; &lt;/object&gt;"> L..."

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

Line: 1143 Column: 15 - 100
"...Powered by<a class="poweredBy-logo" href="https://www.ning.com/" title="" alt="" rel="dofollow"> <..."

Bad value “dofollow” for attribute “rel” on element “a”: The string “dofollow” is not a registered keyword.

Line: 1143 Column: 15 - 100
"...Powered by<a class="poweredBy-logo" href="https://www.ning.com/" title="" alt="" rel="dofollow"> <..."

Element “style” not allowed as child of element “noscript” in this context. (Suppressing further errors from this subtree.)

Line: 1161 Column: 2 - 39
"...oscript> <style type="text/css" media="screen"> ..."

Bad value “//t.insigit.com/457c26e9bfb940b938245ed4695cead2/8fa427bf6de170faefe32330e3b4b102?n_seg=_education&n_name=Classroom 2.0” for attribute “src” on element “img”: Illegal character in query: space is not allowed.

Line: 1281 Column: - 1
"...</script> <img src="//t.insigit.com/457c26e9bfb940b938245ed4695cead2/8fa427bf6de170faefe32330e3b4b102?n_seg=_education&n_name=Classroom 2.0" onload="document.cookie = 'xg34e6aa06c51d03cdb9cb848f477c1771=1;path=/'" > ..."

Warnings

Attribute with the local name “xmlns:og” is not serializable as XML 1.0.

Line: 2 Column: 16 - 45
"...TYPE html> <html lang="en" xmlns:og="http://ogp.me/ns#"> <..."

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classroom20.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.


classroom20.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.