blackboard.com Website Information

Daily Unique Visits: 252,254

Daily Page Views: 2,018,032

Income Per Day: $2,018

Estimated Value: $2,179,440

This website is located in United States and is using following IP address 69.196.244.99. See the complete list of popular websites hosted in United States.

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

Website blackboard.com is using the following name servers:

ns3.blackboard.com
ns1.blackboard.com
ns4.blackboard.com
ns2.blackboard.com

and is probably hosted by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US. See the full list of other websites hosted by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US.

The highest website blackboard.com position in Alexa rank database was 5695 and the lowest rank position was 6150. Current position of blackboard.com in Alexa rank database is 6041.

Desktop speed score of blackboard.com (18/100) is better than the results of 3.49% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of blackboard.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 blackboard.com (29/100) is better than the results of 9.19% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

blackboard.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.

blackboard.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: BLACKBOARD.COM
Registry Domain ID: 5134775_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.corporatedomains.com
Registrar URL: http://cscdbs.com
Updated Date: 2020-06-11T14:27:46Z
Creation Date: 1999-04-09T04:00:00Z
Registry Expiry Date: 2021-07-15T17:53:20Z
Registrar: CSC Corporate Domains, Inc.
Registrar IANA ID: 299
Registrar Abuse Contact Email: domainabuse@cscglobal.com
Registrar Abuse Contact Phone: 8887802723
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited
Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
Domain Status: serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited
Name Server: NS1.BLACKBOARD.COM
Name Server: NS2.BLACKBOARD.COM
Name Server: NS3.BLACKBOARD.COM
DNSSEC: signedDelegation
DNSSEC DS Data: 59185 8 1 9A95A8854A41D9B10E74A23DD99AA48278C397D4
DNSSEC DS Data: 59185 8 2 1239F6EEBA833E3535580AE1021718CBD90E294DBC798E0AEBF686E08B5A83A3
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-04-24T19:50:17Z

blackboard.com server information

Servers Location

blackboard.com desktop page speed rank

Last tested: 2018-10-07

Desktop Speed Bad

18/100

blackboard.com Desktop Speed Test Quick Summary

priority - 339Optimize images

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

Optimize the following images to reduce their size by 3.2MiB (86% reduction).

Compressing and resizing https://www.blackboard.com/images/223/FemaleVendin…0x600_tcm223-76797.png could save 1MiB (91% reduction).
Compressing https://www.blackboard.com/images/223/Textured%20b…_blue_tcm223-73914.jpg could save 559.9KiB (88% reduction).
Compressing https://www.blackboard.com/images/223/Textured%20b…_blue_tcm223-75053.jpg could save 559.9KiB (88% reduction).
Compressing and resizing https://www.blackboard.com/images/223/Moodle_tcm223-75168.png could save 491.7KiB (84% reduction).
Compressing and resizing https://www.blackboard.com/images/223/UtraBlog_tcm223-75051.png could save 401KiB (82% reduction).
Compressing https://www.blackboard.com/images/223/Qualificatio….jpg_tcm223-74968.jpeg could save 135.2KiB (69% reduction).
Compressing and resizing https://www.blackboard.com/images/223/IMSAwards_ca…0x600_tcm223-75287.png could save 70.3KiB (87% reduction).
Compressing and resizing https://www.blackboard.com/images/223/4Learners_Business_tcm223-73918.png could save 8.1KiB (50% reduction).
Compressing and resizing https://www.blackboard.com/images/223/4Learners_K-12_tcm223-73915.png could save 6.4KiB (54% reduction).
Compressing and resizing https://www.blackboard.com/images/223/4Learners_HigherEd_tcm223-73916.png could save 5.5KiB (52% reduction).
Compressing and resizing https://www.blackboard.com/images/223/4Learners_Gov_tcm223-73917.png could save 3.5KiB (47% reduction).
Compressing and resizing https://www.blackboard.com/images/223/Bb_Signature_RevMed_tcm223-65543.png could save 1.5KiB (35% reduction).

priority - 19Leverage 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://customer.api.drift.com/geo (expiration not specified)
https://event.api.drift.com/track (expiration not specified)
https://js.acq.io/ATRK_B956AD90_min.js (expiration not specified)
https://www.blackboard.com/images/223/4Learners_Business_tcm223-73918.png (expiration not specified)
https://www.blackboard.com/images/223/4Learners_Gov_tcm223-73917.png (expiration not specified)
https://www.blackboard.com/images/223/4Learners_HigherEd_tcm223-73916.png (expiration not specified)
https://www.blackboard.com/images/223/4Learners_K-12_tcm223-73915.png (expiration not specified)
https://www.blackboard.com/images/223/Bb_Signature_RevMed_tcm223-65543.png (expiration not specified)
https://www.blackboard.com/images/223/CAROLINEPALLISER_tcm223-74978.png (expiration not specified)
https://www.blackboard.com/images/223/FemaleVendin…0x600_tcm223-76797.png (expiration not specified)
https://www.blackboard.com/images/223/IMSAwards_ca…0x600_tcm223-75287.png (expiration not specified)
https://www.blackboard.com/images/223/JOSE_STET_tcm223-74977.png (expiration not specified)
https://www.blackboard.com/images/223/KRISTEN_UPDATED_tcm223-75024.png (expiration not specified)
https://www.blackboard.com/images/223/Moodle_tcm223-75168.png (expiration not specified)
https://www.blackboard.com/images/223/Qualificatio….jpg_tcm223-74968.jpeg (expiration not specified)
https://www.blackboard.com/images/223/Textured%20b…_blue_tcm223-73914.jpg (expiration not specified)
https://www.blackboard.com/images/223/Textured%20b…_blue_tcm223-75053.jpg (expiration not specified)
https://www.blackboard.com/images/223/USDA_again_tcm223-74980.png (expiration not specified)
https://www.blackboard.com/images/223/UtraBlog_tcm223-75051.png (expiration not specified)
https://www.blackboard.com/images/css/ajax-loader.gif (expiration not specified)
https://www.blackboard.com/scripts/jquery.js (expiration not specified)
https://www.blackboard.com/scripts/modernizr.js (expiration not specified)
https://www.blackboard.com/scripts/scripts.min.js (expiration not specified)
https://www.blackboard.com/scripts/validation.js (expiration not specified)
https://www.blackboard.com/styles/fonts/blackboard/blackboard.ttf (expiration not specified)
https://www.blackboard.com/styles/main.css (expiration not specified)
https://js.driftt.com/include/1538919000000/98hktffwu56s.js (10 seconds)
https://js.driftt.com/embeds/1538918760000/98hktffwu56s.json (30 seconds)
https://www.google.com/recaptcha/api.js?onload=rec…llback&render=explicit (5 minutes)
https://syndication.twitter.com/settings (10 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-KQ8FVX (15 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/355443…6779?v=2.8.30&r=stable (20 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://assets.adobedtm.com/c876840ac68fc41c08a580…1e90b692832c7591e12.js (60 minutes)
https://www.googleadservices.com/pagead/conversion_async.js (60 minutes)
https://us2.siteimprove.com/js/siteanalyze_6004134.js (2 hours)
https://www.google-analytics.com/analytics.js (2 hours)
https://sjs.bizographics.com/insight.min.js (9.6 hours)

priority - 13Avoid landing page redirects

Your page has 4 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://blackboard.com/
http://www.blackboard.com/
https://www.blackboard.com/
http://www.blackboard.com/index.html
https://www.blackboard.com/index.html

priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 4 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.blackboard.com/scripts/modernizr.js
https://assets.adobedtm.com/c876840ac68fc41c08a580…1e90b692832c7591e12.js
https://www.blackboard.com/scripts/jquery.js
https://www.blackboard.com/scripts/validation.js

Optimize CSS Delivery of the following:

https://www.blackboard.com/styles/main.css
https://fonts.googleapis.com/css?family=Noto+Serif…:400,400i,600,600i,700

priority - 4Reduce server response time

In our test, your server responded in 0.55 seconds.

priority - 2Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 25% of the final above-the-fold content could be rendered with the full HTML response.

Click to see the screenshot with only the HTML response:

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 5.8KiB (38% reduction).

Minifying https://www.blackboard.com/scripts/validation.js could save 5.8KiB (38% reduction) after compression.

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 2.1KiB (17% reduction).

Minifying https://www.blackboard.com/index.html could save 2KiB (17% reduction) after compression.
Minifying https://js.driftt.com/deploy/assets/index.html could save 115B (14% reduction).

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 643B (41% reduction).

Compressing https://js.driftt.com/deploy/assets/index.html could save 389B (45% reduction).
Compressing https://event.api.drift.com/track could save 254B (35% reduction).

blackboard.com Desktop Resource Breakdown

Total Resources	81
Number of Hosts	27
Static Resources	46
JavaScript Resources	27
CSS Resources	5

blackboard.com mobile page speed rank

Last tested: 2018-10-07

Mobile Speed Bad

29/100

blackboard.com Mobile Speed Test Quick Summary

priority - 130Optimize images

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

Optimize the following images to reduce their size by 1.2MiB (82% reduction).

Compressing https://www.blackboard.com/images/223/Textured%20b…_blue_tcm223-73914.jpg could save 559.9KiB (88% reduction).
Compressing https://www.blackboard.com/images/223/Textured%20b…_blue_tcm223-75053.jpg could save 559.9KiB (88% reduction).
Compressing https://www.blackboard.com/images/223/Qualificatio….jpg_tcm223-74968.jpeg could save 135.2KiB (69% reduction).
Compressing https://www.blackboard.com/images/223/IMSAwards_ca…0x600_tcm223-75287.png could save 10.9KiB (14% reduction).

priority - 45Avoid landing page redirects

Your page has 4 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://blackboard.com/
http://www.blackboard.com/
https://www.blackboard.com/
http://www.blackboard.com/index.html
https://www.blackboard.com/index.html

priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 4 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

https://www.blackboard.com/styles/main.css
https://fonts.googleapis.com/css?family=Noto+Serif…:400,400i,600,600i,700

priority - 28Leverage 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:

priority - 8Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 38% of the final above-the-fold content could be rendered with the full HTML response.

Click to see the screenshot with only the HTML response:

priority - 2Reduce server response time

In our test, your server responded in 0.32 seconds.

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 5.8KiB (38% reduction).

Minifying https://www.blackboard.com/scripts/validation.js could save 5.8KiB (38% reduction) after compression.

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 2.1KiB (17% reduction).

Minifying https://www.blackboard.com/index.html could save 2KiB (17% reduction) after compression.
Minifying https://js.driftt.com/deploy/assets/index.html could save 115B (14% reduction).

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 659B (41% reduction).

Compressing https://js.driftt.com/deploy/assets/index.html could save 389B (45% reduction).
Compressing https://event.api.drift.com/track could save 270B (36% reduction).

blackboard.com Mobile Resource Breakdown

Total Resources	79
Number of Hosts	27
Static Resources	46
JavaScript Resources	27
CSS Resources	5

blackboard.com mobile page usability

Last tested: 2018-10-07

Mobile Usability Good

96/100

blackboard.com Mobile Usability Test Quick Summary

priority - 3Size 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 <li id="slick-slide03">4</li> is close to 1 other tap targets.
The tap target <button type="button">4</button> is close to 1 other tap targets.
The tap target <a href="/about-us/lead…ship-team.html" class="">Leadership</a> and 29 others are close to other tap targets.

blackboard.com HTML validation

Warnings

The “type” attribute is unnecessary for JavaScript resources.

Line: 12 Column: 5 - 35
"... --> <script type="text/javascript"> ..." Line: 29 Column: 29 - 59
"..."utf-8" /><script type="text/javascript">(..." Line: 1583 Column: 5 - 368
"...ipt> <script type="text/javascript" src="https://lastcall.atlassian.net/s/d41d8cd98f00b204e9800998ecf8427e-T/-t2deah/b/11/a44af77267a987a660377e5c46e0fb64/_/download/batch/com.atlassian.jira.collector.plugin.jira-issue-collector-plugin:issuecollector/com.atlassian.jira.collector.plugin.jira-issue-collector-plugin:issuecollector.js?locale=en-US&collectorId=63b70b4e"></scrip..." Line: 1584 Column: 3 - 33
"...script> <script type="text/javascript">window..."

The “banner” role is unnecessary for element “header”.

Line: 73 Column: 1 - 40
"...> <header role="banner" class="bb_header"> <..."

The first occurrence of ID “” was here.

Line: 393 Column: 9 - 38
"...> <h2 id="" class="show-for-sr">Audien..." Line: 393 Column: 9 - 38
"...> <h2 id="" class="show-for-sr">Audien..." Line: 393 Column: 9 - 38
"...> <h2 id="" class="show-for-sr">Audien..." Line: 393 Column: 9 - 38
"...> <h2 id="" class="show-for-sr">Audien..."

The “main” role is unnecessary for element “main”.

Line: 964 Column: 3 - 20
"...der> <main role="main"> ..."

Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.

Line: 1030 Column: 18 - 26
"... <div><article> ..." Line: 1094 Column: 18 - 26
"... <div><article> ..." Line: 1135 Column: 18 - 26
"... <div><article> ..." Line: 1086 Column: 1 - 122
"... <article role="article" about="/node/511" class="node node--type-quote node--view-mode-carousel bb_node--quote--carousel"> ..." Line: 1164 Column: 18 - 26
"... <div><article> ..." Line: 1205 Column: 18 - 26
"... <div><article> ..." Line: 1156 Column: 1 - 122
"... <article role="article" about="/node/501" class="node node--type-quote node--view-mode-carousel bb_node--quote--carousel"> ..." Line: 1234 Column: 18 - 26
"... <div><article> ..." Line: 1275 Column: 18 - 26
"... <div><article> ..." Line: 1226 Column: 1 - 122
"... <article role="article" about="/node/506" class="node node--type-quote node--view-mode-carousel bb_node--quote--carousel"> ..."

The “article” role is unnecessary for element “article”.

Line: 1086 Column: 1 - 122
"... <article role="article" about="/node/511" class="node node--type-quote node--view-mode-carousel bb_node--quote--carousel"> ..." Line: 1156 Column: 1 - 122
"... <article role="article" about="/node/501" class="node node--type-quote node--view-mode-carousel bb_node--quote--carousel"> ..." Line: 1226 Column: 1 - 122
"... <article role="article" about="/node/506" class="node node--type-quote node--view-mode-carousel bb_node--quote--carousel"> ..."

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

Line: 1450 Column: 3 - 47
".../main> <footer role="contentinfo" class="bb_footer"> <di..."

Errors

Bad value “no” for attribute “focusable” on element “svg”.

Line: 77 Column: 9 - 116
"...> <svg role="img" focusable="no" class="Signature" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 126 17.68"> <de..." Line: 658 Column: 17 - 124
"... <svg role="img" focusable="no" class="Signature" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 126 17.68"> <de..." Line: 1457 Column: 15 - 122
"... <svg role="img" focusable="no" class="Signature" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 126 17.68"> <de..."

Bad value “” for attribute “aria-labelledby” on element “nav”: An IDREFS value must contain at least one non-whitespace character.

Line: 392 Column: 15 - 38
"... <nav aria-labelledby=""> ..." Line: 486 Column: 15 - 38
"... <nav aria-labelledby=""> ..." Line: 519 Column: 15 - 38
"... <nav aria-labelledby=""> ..." Line: 612 Column: 15 - 38
"... <nav aria-labelledby=""> ..."

Bad value “” for attribute “id” on element “h2”: An ID must not be the empty string.

Line: 393 Column: 9 - 38
"...> <h2 id="" class="show-for-sr">Audien..." Line: 487 Column: 9 - 38
"...> <h2 id="" class="show-for-sr">Servic..." Line: 520 Column: 9 - 38
"...> <h2 id="" class="show-for-sr">Audien..." Line: 613 Column: 9 - 38
"...> <h2 id="" class="show-for-sr">Servic..."

Duplicate ID “”.

Line: 487 Column: 9 - 38
"...> <h2 id="" class="show-for-sr">Servic..." Line: 520 Column: 9 - 38
"...> <h2 id="" class="show-for-sr">Audien..." Line: 613 Column: 9 - 38
"...> <h2 id="" class="show-for-sr">Servic..." Line: 1078 Column: 7 - 36
"...t"> <span class="bb_anchor" id=""></span..."

Bad value “” for attribute “width” on element “video”: The empty string is not a valid non-negative integer.

Line: 990 Column: 9 - 194
"...> <video autoplay="autoplay" loop="loop" muted="muted" width="" height="" poster="/sites/default/files/styles/800x450/public/2020-07/Let-Advance-Learning.png?h=0ab93ce0&itok=n5G_2-sa"> ..." Line: 1048 Column: 15 - 66
"... <video loop="loop" muted="muted" width="" height=""> ..."

Bad value “” for attribute “height” on element “video”: The empty string is not a valid non-negative integer.

Element “source” is missing required attribute “src”.

Line: 991 Column: 11 - 93
"... <source data-src="/sites/default/files/2020-07/black-overlay.mp4" type="video/mp4"> ..."

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

Line: 1006 Column: 101 - 264
"...ve-video"><iframe width="854" height="480" frameborder="0" allowfullscreen="allowfullscreen" src="https://www.youtube.com/embed/9wQnGe_GPgg?autoplay=0&start=0&rel=0"></ifra..."

Bad value “” for attribute “id” on element “span”: An ID must not be the empty string.

Line: 1078 Column: 7 - 36
"...t"> <span class="bb_anchor" id=""></span..."

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

Line: 1131 Column: 11 - 19
"... </figure> ..." Line: 1201 Column: 11 - 19
"... </figure> ..." Line: 1271 Column: 11 - 19
"... </figure> ..."

Unclosed element “div”.

Line: 1107 Column: 7 - 33
"...--> <div class="orbit-content"> ..." Line: 1177 Column: 7 - 33
"...--> <div class="orbit-content"> ..." Line: 1247 Column: 7 - 33
"...--> <div class="orbit-content"> ..."

The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control.

Line: 94 Column: 5 - 63
"...rch"> <label class="bb_header__menu__search__label" for="search">Search..." Line: 637 Column: 5 - 63
"...rch"> <label class="bb_header__menu__search__label" for="search">Search..."

blackboard.com similar domains

Similar domains:

www.blackboard.com
www.blackboard.net
www.blackboard.org
www.blackboard.info
www.blackboard.biz
www.blackboard.us
www.blackboard.mobi
www.lackboard.com
www.blackboard.com
www.vlackboard.com
www.bvlackboard.com
www.vblackboard.com
www.glackboard.com
www.bglackboard.com
www.gblackboard.com
www.hlackboard.com
www.bhlackboard.com
www.hblackboard.com
www.nlackboard.com
www.bnlackboard.com
www.nblackboard.com
www.backboard.com
www.bpackboard.com
www.blpackboard.com
www.bplackboard.com
www.boackboard.com
www.bloackboard.com
www.bolackboard.com
www.bkackboard.com
www.blkackboard.com
www.bklackboard.com
www.blckboard.com
www.blqckboard.com
www.blaqckboard.com
www.blqackboard.com
www.blwckboard.com
www.blawckboard.com
www.blwackboard.com
www.blsckboard.com
www.blasckboard.com
www.blsackboard.com
www.blzckboard.com
www.blazckboard.com
www.blzackboard.com
www.blakboard.com
www.blaxkboard.com
www.blacxkboard.com
www.blaxckboard.com
www.bladkboard.com
www.blacdkboard.com
www.bladckboard.com
www.blafkboard.com
www.blacfkboard.com
www.blafckboard.com
www.blavkboard.com
www.blacvkboard.com
www.blavckboard.com
www.blacboard.com
www.blacjboard.com
www.blackjboard.com
www.blacjkboard.com
www.blaciboard.com
www.blackiboard.com
www.blacikboard.com
www.blacmboard.com
www.blackmboard.com
www.blacmkboard.com
www.blaclboard.com
www.blacklboard.com
www.blaclkboard.com
www.blacoboard.com
www.blackoboard.com
www.blacokboard.com
www.blackoard.com
www.blackvoard.com
www.blackbvoard.com
www.blackvboard.com
www.blackgoard.com
www.blackbgoard.com
www.blackgboard.com
www.blackhoard.com
www.blackbhoard.com
www.blackhboard.com
www.blacknoard.com
www.blackbnoard.com
www.blacknboard.com
www.blackbard.com
www.blackbiard.com
www.blackboiard.com
www.blackbioard.com
www.blackbkard.com
www.blackbokard.com
www.blackbkoard.com
www.blackblard.com
www.blackbolard.com
www.blackbloard.com
www.blackbpard.com
www.blackbopard.com
www.blackbpoard.com
www.blackbord.com
www.blackboqrd.com
www.blackboaqrd.com
www.blackboqard.com
www.blackbowrd.com
www.blackboawrd.com
www.blackboward.com
www.blackbosrd.com
www.blackboasrd.com
www.blackbosard.com
www.blackbozrd.com
www.blackboazrd.com
www.blackbozard.com
www.blackboad.com
www.blackboaed.com
www.blackboared.com
www.blackboaerd.com
www.blackboadd.com
www.blackboardd.com
www.blackboadrd.com
www.blackboafd.com
www.blackboarfd.com
www.blackboafrd.com
www.blackboatd.com
www.blackboartd.com
www.blackboatrd.com
www.blackboar.com
www.blackboarx.com
www.blackboardx.com
www.blackboarxd.com
www.blackboars.com
www.blackboards.com
www.blackboarsd.com
www.blackboare.com
www.blackboarde.com
www.blackboarr.com
www.blackboardr.com
www.blackboarrd.com
www.blackboarf.com
www.blackboardf.com
www.blackboarc.com
www.blackboardc.com
www.blackboarcd.com
www.blackboard.con

blackboard.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.

blackboard.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.

BLACKBOARD.COM Educational Technology Services | Blackboard | North America

blackboard.com Website Information

Advertisement

blackboard.com Alexa Rank

blackboard.com whois

blackboard.com server information

Servers Location

blackboard.com desktop page speed rank

blackboard.com Desktop Speed Test Quick Summary

priority - 339Optimize images

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

Optimize the following images to reduce their size by 3.2MiB (86% reduction).

priority - 19Leverage 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:

priority - 13Avoid landing page redirects

Your page has 4 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 4 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 4Reduce server response time

In our test, your server responded in 0.55 seconds.

priority - 2Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

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 5.8KiB (38% 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 2.1KiB (17% reduction).

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 643B (41% reduction).

blackboard.com Desktop Resource Breakdown

blackboard.com mobile page speed rank

blackboard.com Mobile Speed Test Quick Summary

priority - 130Optimize images

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

Optimize the following images to reduce their size by 1.2MiB (82% reduction).

priority - 45Avoid landing page redirects

Your page has 4 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 4 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 28Leverage 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:

priority - 8Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

priority - 2Reduce server response time

In our test, your server responded in 0.32 seconds.

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 5.8KiB (38% 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 2.1KiB (17% reduction).

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 659B (41% reduction).

blackboard.com Mobile Resource Breakdown

blackboard.com mobile page usability

blackboard.com Mobile Usability Test Quick Summary

priority - 3Size 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.

blackboard.com HTML validation

Warnings

The “type” attribute is unnecessary for JavaScript resources.

The “banner” role is unnecessary for element “header”.

The first occurrence of ID “” was here.

The “main” role is unnecessary for element “main”.

Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.

The “article” role is unnecessary for element “article”.

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

Errors