ibmpressbooks.com Website Information

Daily Unique Visits: 847

Daily Page Views: 1,694

Income Per Day: $5

Estimated Value: $1,200

This website is located in United States and is using following IP address 168.146.67.180. See the complete list of popular websites hosted in United States.

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

Website ibmpressbooks.com is using the following name servers:

dns-emea-2.ptns.pearson.com
dns-amer-1.ptns.pearson.com
dns-amer-2.ptns.pearson.com
dns-apac-1.ptns.pearson.com
dns-apac-2.ptns.pearson.com
dns-emea-1.ptns.pearson.com

and is probably hosted by ECOLLEGE-MONACO - eCollege.com, Inc., US. See the full list of other websites hosted by ECOLLEGE-MONACO - eCollege.com, Inc., US.

The highest website ibmpressbooks.com position in Alexa rank database was 503406 and the lowest rank position was 999275. Current position of ibmpressbooks.com in Alexa rank database is 846241.

Desktop speed score of ibmpressbooks.com (70/100) is better than the results of 50.91% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of ibmpressbooks.com (67/100) is better than the results of 18.73% of other sites and means that the page is not mobile-friendly.

Mobile speed score of ibmpressbooks.com (55/100) is better than the results of 43.86% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

ibmpressbooks.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.

ibmpressbooks.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: IBMPRESSBOOKS.COM
Registry Domain ID: 131257616_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.corporatedomains.com
Registrar URL: http://cscdbs.com
Updated Date: 2021-08-16T19:42:53Z
Creation Date: 2004-09-28T21:31:33Z
Registry Expiry Date: 2022-09-28T21:31:33Z
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
Name Server: NS01.PEARSON.COM
Name Server: NS02.PEARSON.COM
Name Server: NS03.PEARSON.COM
Name Server: NS04.PEARSON.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-01-01T07:50:33Z

ibmpressbooks.com server information

Servers Location

ibmpressbooks.com desktop page speed rank

Last tested: 2019-09-03

Desktop Speed Medium

70/100

ibmpressbooks.com Desktop Speed Test Quick Summary

priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 9 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

http://www.informit.com/display/common/javascript/….custom.js?v=201900603
http://www.informit.com/display/common/javascript/jquery.js?v=201900603
http://www.informit.com/display/common/javascript/global.js?v=201900603
http://www.informit.com/display/common/javascript/swfobject.js
http://www.informit.com/display/common/javascript/…i-1.12.0.custom.min.js
http://www.informit.com/display/common/javascript/fastclick.min.js
http://www.informit.com/display/common/javascript/e-commerce-data-layer.js
http://www.informit.com/display/common/javascript/addThisInformit.js
http://s7.addthis.com/js/152/addthis_widget.js

Optimize CSS Delivery of the following:

http://www.informit.com/display/InformIT/css/style-blessed1.css
https://fonts.googleapis.com/css?family=Source+San…00italic,400italic,700
http://www.informit.com/display/InformIT/css/style.css
http://www.informit.com/display/InformIT/css/style…d1.css?z=1559543134130
https://fonts.googleapis.com/css?family=Source+San…00italic,400italic,700

priority - 11Leverage 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://ptgmedia.pearsoncmg.com/imprint_downloads/i…bmpress_logo_90x70.jpg (expiration not specified)
http://www.informit.com/display/InformIT/images/header/informit.png (expiration not specified)
http://www.informit.com/display/common/css/print.css (expiration not specified)
http://www.informit.com/display/common/fonts/playf…irDisplay-Regular.woff (expiration not specified)
http://www.informit.com/display/common/javascript/addThisInformit.js (expiration not specified)
http://www.informit.com/display/common/javascript/…i-1.12.0.custom.min.js (expiration not specified)
https://v1.addthisedge.com/live/boost/informit/_ate.track.config_resp (29 seconds)
https://s7.addthis.com/js/152/addthis_widget.js (10 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-594Q94P (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-5D4Z3ML (15 minutes)
http://connect.facebook.net/en_US/fbds.js (20 minutes)
http://www.googleadservices.com/pagead/conversion_async.js (60 minutes)
https://www.google-analytics.com/plugins/ua/ec.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
http://www.informit.com/display/InformIT/css/style-blessed1.css (24 hours)
http://www.informit.com/display/InformIT/css/style.css (24 hours)
http://www.informit.com/display/InformIT/images/header/arrow.png (24 hours)
http://www.informit.com/display/InformIT/images/icons/share_16.png (24 hours)
http://www.informit.com/display/common/fonts/symbolset/ss-standard.woff (24 hours)
http://www.informit.com/display/common/javascript/e-commerce-data-layer.js (24 hours)
http://www.informit.com/display/common/javascript/fastclick.min.js (24 hours)
http://www.informit.com/display/common/javascript/jquery.js?v=201900603 (24 hours)
http://www.informit.com/display/common/javascript/….custom.js?v=201900603 (24 hours)
http://www.informit.com/display/common/javascript/swfobject.js (24 hours)

priority - 7Reduce server response time

In our test, your server responded in 0.59 seconds.

priority - 4Optimize images

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priority - 4Minify CSS

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priority - 0Minify JavaScript

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Minifying http://www.informit.com/display/common/javascript/global.js?v=201900603 could save 2.3KiB (39% reduction) after compression.
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priority - 0Enable compression

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Enable compression for the following resources to reduce their transfer size by 1.1KiB (56% reduction).

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ibmpressbooks.com Desktop Resource Breakdown

Total Resources	44
Number of Hosts	14
Static Resources	33
JavaScript Resources	18
CSS Resources	5

ibmpressbooks.com mobile page speed rank

Last tested: 2019-09-03

Mobile Speed Bad

55/100

ibmpressbooks.com Mobile Speed Test Quick Summary

priority - 64Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 9 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 16Leverage 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://ptgmedia.pearsoncmg.com/imprint_downloads/i…bmpress_logo_90x70.jpg (expiration not specified)
http://www.informit.com/display/InformIT/css/style-blessed1.css (expiration not specified)
http://www.informit.com/display/InformIT/images/header/arrow.png (expiration not specified)
http://www.informit.com/display/InformIT/images/header/informit@2x.png (expiration not specified)
http://www.informit.com/display/common/css/print.css (expiration not specified)
http://www.informit.com/display/common/javascript/addThisInformit.js (expiration not specified)
http://www.informit.com/display/common/javascript/e-commerce-data-layer.js (expiration not specified)
http://www.informit.com/display/common/javascript/swfobject.js (expiration not specified)
https://v1.addthisedge.com/live/boost/informit/_ate.track.config_resp (52 seconds)
https://s7.addthis.com/js/152/addthis_widget.js (10 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-594Q94P (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-5D4Z3ML (15 minutes)
http://connect.facebook.net/en_US/fbds.js (20 minutes)
http://www.googleadservices.com/pagead/conversion_async.js (60 minutes)
https://www.google-analytics.com/plugins/ua/ec.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
http://www.informit.com/display/InformIT/css/style…d1.css?z=1559543134130 (24 hours)
http://www.informit.com/display/InformIT/css/style.css (24 hours)
http://www.informit.com/display/InformIT/images/icons/share_16.png (24 hours)
http://www.informit.com/display/common/fonts/playf…irDisplay-Regular.woff (24 hours)
http://www.informit.com/display/common/fonts/symbolset/ss-standard.woff (24 hours)
http://www.informit.com/display/common/javascript/fastclick.min.js (24 hours)
http://www.informit.com/display/common/javascript/…i-1.12.0.custom.min.js (24 hours)

priority - 4Optimize images

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

Optimize the following images to reduce their size by 37.7KiB (30% reduction).

priority - 4Minify 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 35.4KiB (27% reduction).

priority - 0Minify JavaScript

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

Minify JavaScript for the following resources to reduce their size by 4.2KiB (34% reduction).

ibmpressbooks.com Mobile Resource Breakdown

Total Resources	45
Number of Hosts	14
Static Resources	33
JavaScript Resources	19
CSS Resources	5

ibmpressbooks.com mobile page usability

Last tested: 2019-09-03

Mobile Usability Medium

67/100

ibmpressbooks.com Mobile Usability Test Quick Summary

priority - 50Size 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 1,002 CSS pixels wide, but the viewport is only 412 CSS pixels wide. The following elements fall outside the viewport:

The element <h1>IBM Press Book…ks on InformIT</h1> falls outside the viewport.
The element <img src="http://www.inf…s/share_16.png"> falls outside the viewport.
The element <span>Share This</span> falls outside the viewport.
The element <p>IBM Press is t…olio of books.</p> falls outside the viewport.
The element <h2>Shop all IBM Press</h2> falls outside the viewport.
The element <p></p> falls outside the viewport.
The element <strong>Featured Books…y at InformIT*</strong> falls outside the viewport.
The element <div> falls outside the viewport.
The element <img src="/showcover.asp…3366150&type=f"> falls outside the viewport.
The element <br> falls outside the viewport.
The element <a href="/store/product…=9780133366150" class="title">Common Informa…nd Agile World</a> falls outside the viewport.
The element <strike>$39.99</strike> falls outside the viewport.
The element <br> falls outside the viewport.
The element <strike>$31.99</strike> falls outside the viewport.
The element <img src="/showcover.asp…3763034&type=f"> falls outside the viewport.
The element <br> falls outside the viewport.
The element <a href="/store/product…=9780133763034" class="title">Practical Soft…e Architecture</a> falls outside the viewport.
The element <strong>Book *$39.99</strong> falls outside the viewport.
The element <strike>$49.99</strike> falls outside the viewport.
The element <br> falls outside the viewport.
The element <strong>eBook *$31.99</strong> falls outside the viewport.
The element <strike>$39.99</strike> falls outside the viewport.
The element <img src="/showcover.asp…2618311&type=f"> falls outside the viewport.
The element <a href="/store/product…=9780132618311" class="title">Get Bold</a> falls outside the viewport.
The element <strong>Book *$11.99</strong> falls outside the viewport.
The element <strike>$14.99</strike> falls outside the viewport.
The element <br> falls outside the viewport.
The element <strong>eBook *$9.59</strong> falls outside the viewport.
The element <strike>$11.99</strike> falls outside the viewport.
The element <div></div> falls outside the viewport.
The element <img src="/showcover.asp…3509809&type=f"> falls outside the viewport.
The element <p>Beyond Big Data</p> falls outside the viewport.
The element <strike>$34.99</strike> falls outside the viewport.
The element <br> falls outside the viewport.
The element <strike>$27.99</strike> falls outside the viewport.
The element <img src="/showcover.asp…3892567&type=f"> falls outside the viewport.
The element <a href="/store/product…=9780133892567" class="title">Social Media Analytics</a> falls outside the viewport.
The element <strong>Book *$23.99</strong> falls outside the viewport.
The element <strike>$29.99</strike> falls outside the viewport.
The element <br> falls outside the viewport.
The element <strong>eBook *$19.19</strong> falls outside the viewport.
The element <strike>$23.99</strike> falls outside the viewport.
The element <img src="/showcover.asp…3039177&type=f"> falls outside the viewport.
The element <br> falls outside the viewport.
The element <a href="/store/product…=9780133039177" class="title">Search Engine Marketing, Inc.</a> falls outside the viewport.
The element <strong>Book *$35.99</strong> falls outside the viewport.
The element <strike>$44.99</strike> falls outside the viewport.
The element <br> falls outside the viewport.
The element <strong>eBook *$28.79</strong> falls outside the viewport.
The element <strike>$35.99</strike> falls outside the viewport.
The element <p></p> falls outside the viewport.
The element <font>* Nearly every…ect to change.</font> falls outside the viewport.
The element <div class="branding"></div> falls outside the viewport.
The element <span class="bighead ss-icon"></span> falls outside the viewport.
The element <span class="bighead">View</span> falls outside the viewport.
The element <a href="https://member…spx?partner=53">Join</a> falls outside the viewport.
The element <span>|</span> falls outside the viewport.
The element <a href="https://member…spx?partner=53">Sign In</a> falls outside the viewport.
The element <input id="query" type="text" name="query"> falls outside the viewport.
The element <input id="searchbutton" type="submit" class="ss-icon"> falls outside the viewport.
The element <a href="/promotions/vi…-devops-140499">Video Training</a> falls outside the viewport.
The element <a href="https://www.sa…global+top+nav">Safari</a> falls outside the viewport.
The element <a href="/imprint/" class="arrow">Imprints</a> falls outside the viewport.
The element <a href="/explore/" class="arrow">Explore</a> falls outside the viewport.
The element <a href="/promotions/in…-center-139745" class="arrow">Community</a> falls outside the viewport.
The element <a href="/cart/ordering.aspx">Ordering Information</a> falls outside the viewport.
The element <a href="/about/privacy.aspx">Privacy Notice</a> falls outside the viewport.
The element <a href="/press/">Press</a> falls outside the viewport.
The element <a href="/promotions/">Promotions</a> falls outside the viewport.
The element <a href="/site_map/">Site Map</a> falls outside the viewport.
The element <a href="/about/write_for_us.aspx">Write for Us</a> falls outside the viewport.
The element <div>221 River Stre…oken, NJ 07030</div> falls outside the viewport.
The element <div class="cranium">Pearson</div> falls outside the viewport.

priority - 1Size 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="/store/" class="arrow">Store</a> and 4 others are close to other tap targets.

The tap target <a href="/promotions/">Deals & Promotions</a> and 2 others are close to other tap targets.

ibmpressbooks.com HTML validation

Errors

Attribute “xmlns:fb” not allowed here.

Line: 1 Column: 486 - 618
"...E 8]><!--><html class="no-js" xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fb="http://www.facebook.com/2008/fbml" xmlns:scr="urn:scr.this"><!--<!..."

Attribute “xmlns:scr” not allowed here.

Line: 1 Column: 486 - 618
"...E 8]><!--><html class="no-js" xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fb="http://www.facebook.com/2008/fbml" xmlns:scr="urn:scr.this"><!--<!..."

Attribute “xsl” not allowed on element “html” at this point.

Line: 1 Column: 486 - 618
"...E 8]><!--><html class="no-js" xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fb="http://www.facebook.com/2008/fbml" xmlns:scr="urn:scr.this"><!--<!..."

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Line: 1 Column: 641 - 704
"...]--><head><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" /><meta ..."

Attribute “xmlns:msxsl” not allowed here.

Line: 2 Column: 21 - 154
"... </title><link href="/display/InformIT/css/style-blessed1.css" rel="stylesheet" type="text/css" xmlns:msxsl="urn:schemas-microsoft-com:xslt" /><link ..." Line: 2 Column: 155 - 279
"...m:xslt" /><link href="/display/InformIT/css/style.css" rel="stylesheet" type="text/css" xmlns:msxsl="urn:schemas-microsoft-com:xslt" /><link ..." Line: 2 Column: 280 - 416
"...m:xslt" /><link href="/display/common/css/print.css" rel="stylesheet" media="print" type="text/css" xmlns:msxsl="urn:schemas-microsoft-com:xslt" /><link ..." Line: 2 Column: 417 - 613
"...m:xslt" /><link rel="apple-touch-icon-precomposed" sizes="144x144" href="/display/InformIT/images/objects/touch_icons/apple-touch-icon-144x144-precomposed.png" xmlns:msxsl="urn:schemas-microsoft-com:xslt" /><link ..." Line: 2 Column: 614 - 810
"...m:xslt" /><link rel="apple-touch-icon-precomposed" sizes="114x114" href="/display/InformIT/images/objects/touch_icons/apple-touch-icon-114x114-precomposed.png" xmlns:msxsl="urn:schemas-microsoft-com:xslt" /><link ..." Line: 2 Column: 811 - 1003
"...m:xslt" /><link rel="apple-touch-icon-precomposed" sizes="72x72" href="/display/InformIT/images/objects/touch_icons/apple-touch-icon-72x72-precomposed.png" xmlns:msxsl="urn:schemas-microsoft-com:xslt" /><link ..." Line: 2 Column: 1004 - 1176
"...m:xslt" /><link rel="apple-touch-icon-precomposed" href="/display/InformIT/images/objects/touch_icons/apple-touch-icon-precomposed.png" xmlns:msxsl="urn:schemas-microsoft-com:xslt" /><scrip..." Line: 2 Column: 1177 - 1338
"...m:xslt" /><script language="JavaScript" src="/display/common/javascript/modernizr.custom.js?v=20191002" type="text/javascript" xmlns:msxsl="urn:schemas-microsoft-com:xslt"></scri..." Line: 2 Column: 1348 - 1499
"...></script><script language="JavaScript" src="/display/common/javascript/jquery.js?v=20191002" type="text/JavaScript" xmlns:msxsl="urn:schemas-microsoft-com:xslt"></scri..." Line: 2 Column: 1509 - 1660
"...></script><script language="JavaScript" src="/display/common/javascript/global.js?v=20191002" type="text/JavaScript" xmlns:msxsl="urn:schemas-microsoft-com:xslt"></scri..." Line: 2 Column: 1810 - 1953
"...[endif]--><script language="JavaScript" src="/display/common/javascript/swfobject.js" type="text/JavaScript" xmlns:msxsl="urn:schemas-microsoft-com:xslt"></scri..." Line: 2 Column: 1963 - 2124
"...></script><script language="JavaScript" src="/display/common/javascript/jquery-ui-1.12.0.custom.min.js" type="text/JavaScript" xmlns:msxsl="urn:schemas-microsoft-com:xslt"></scri..." Line: 2 Column: 2134 - 2281
"...></script><script language="JavaScript" src="/display/common/javascript/fastclick.min.js" type="text/JavaScript" xmlns:msxsl="urn:schemas-microsoft-com:xslt"></scri..." Line: 2 Column: 2291 - 2418
"...></script><link rel="canonical" href="http://www.informit.com/promotions/ibm-press-141142" xmlns:msxsl="urn:schemas-microsoft-com:xslt" /><meta ..." Line: 2 Column: 2419 - 2508
"...m:xslt" /><meta name="pageType" content="Promotions" xmlns:msxsl="urn:schemas-microsoft-com:xslt" /><meta ..." Line: 2 Column: 2509 - 2604
"...m:xslt" /><meta name="publishedDate" content="Apr 1, 2016" xmlns:msxsl="urn:schemas-microsoft-com:xslt" /><meta ..." Line: 2 Column: 2605 - 2791
"...m:xslt" /><meta name="description" content="Learn about the IBM Press books and eBooks available on InformIT, and save 20% off list price every day." xmlns:msxsl="urn:schemas-microsoft-com:xslt" /><link ..." Line: 2 Column: 2883 - 2935
"...191002" /><script xmlns:msxsl="urn:schemas-microsoft-com:xslt"> ..." Line: 18 Column: 14 - 68
"... </script><noscript xmlns:msxsl="urn:schemas-microsoft-com:xslt"><img h..."

Bad start tag in “img” in “head”.

Line: 18 Column: 69 - 201
"...com:xslt"><img height="1" width="1" alt="" style="display:none" src="https://www.facebook.com/tr?id=730048657068506&ev=PixelInitialized" /></nosc..."

Stray end tag “noscript”.

Line: 18 Column: 202 - 212
"...alized" /></noscript><scrip..."

Stray end tag “head”.

Line: 24 Column: 85 - 91
"...></script></head><input..."

Start tag “body” seen but an element of the same type was already open.

Line: 24 Column: 146 - 172
"...ue="53" /><body class="no-site-wide"><noscr..."

Cannot recover after last error. Any further errors will be ignored.

Line: 24 Column: 146 - 172
"...ue="53" /><body class="no-site-wide"><noscr..."

Warnings

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

Line: 1 Column: 486 - 618
"...E 8]><!--><html class="no-js" xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fb="http://www.facebook.com/2008/fbml" xmlns:scr="urn:scr.this"><!--<!..."

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

Line: 1 Column: 486 - 618
"...E 8]><!--><html class="no-js" xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fb="http://www.facebook.com/2008/fbml" xmlns:scr="urn:scr.this"><!--<!..."

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

The “type” attribute is unnecessary for JavaScript resources.

Line: 2 Column: 1177 - 1338
"...m:xslt" /><script language="JavaScript" src="/display/common/javascript/modernizr.custom.js?v=20191002" type="text/javascript" xmlns:msxsl="urn:schemas-microsoft-com:xslt"></scri..." Line: 2 Column: 1348 - 1499
"...></script><script language="JavaScript" src="/display/common/javascript/jquery.js?v=20191002" type="text/JavaScript" xmlns:msxsl="urn:schemas-microsoft-com:xslt"></scri..." Line: 2 Column: 1509 - 1660
"...></script><script language="JavaScript" src="/display/common/javascript/global.js?v=20191002" type="text/JavaScript" xmlns:msxsl="urn:schemas-microsoft-com:xslt"></scri..." Line: 2 Column: 1810 - 1953
"...[endif]--><script language="JavaScript" src="/display/common/javascript/swfobject.js" type="text/JavaScript" xmlns:msxsl="urn:schemas-microsoft-com:xslt"></scri..." Line: 2 Column: 1963 - 2124
"...></script><script language="JavaScript" src="/display/common/javascript/jquery-ui-1.12.0.custom.min.js" type="text/JavaScript" xmlns:msxsl="urn:schemas-microsoft-com:xslt"></scri..." Line: 2 Column: 2134 - 2281
"...></script><script language="JavaScript" src="/display/common/javascript/fastclick.min.js" type="text/JavaScript" xmlns:msxsl="urn:schemas-microsoft-com:xslt"></scri..." Line: 18 Column: 213 - 323
".../noscript><script language="JavaScript" src="/display/common/javascript/e-commerce-data-layer.js" type="text/JavaScript"></scri..."

The “language” attribute on the “script” element is obsolete. You can safely omit it.

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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.

ibmpressbooks.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.

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priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 9 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.

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Optimize CSS Delivery of the following:

priority - 11Leverage 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:

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priority - 64Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 9 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 16Leverage 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 - 4Optimize images

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

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priority - 4Minify CSS

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ibmpressbooks.com HTML validation

Errors

Attribute “xmlns:fb” not allowed here.

Attribute “xmlns:scr” not allowed here.

Attribute “xsl” not allowed on element “html” at this point.

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Attribute “xmlns:msxsl” not allowed here.

Bad start tag in “img” in “head”.

Stray end tag “noscript”.

Stray end tag “head”.

Start tag “body” seen but an element of the same type was already open.

Cannot recover after last error. Any further errors will be ignored.

Warnings

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

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

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

The “type” attribute is unnecessary for JavaScript resources.

The “language” attribute on the “script” element is obsolete. You can safely omit it.

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ibmpressbooks.com TRACEROUTE