2.7 sec in total
146 ms
2.4 sec
202 ms
Welcome to ibmpressbooks.com homepage info - get ready to check IBM Press Books best content for United States right away, or after learning these important things about ibmpressbooks.com
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Visit ibmpressbooks.comWe analyzed Ibmpressbooks.com page load time and found that the first response time was 146 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
ibmpressbooks.com performance score
name
value
score
weighting
Value6.4 s
2/100
10%
Value9.6 s
0/100
25%
Value9.2 s
13/100
10%
Value1,170 ms
21/100
30%
Value0
100/100
15%
Value11.5 s
18/100
10%
146 ms
222 ms
192 ms
132 ms
237 ms
Our browser made a total of 52 requests to load all elements on the main page. We found that 58% of them (30 requests) were addressed to the original Ibmpressbooks.com, 6% (3 requests) were made to Tags.mediaforge.com and 6% (3 requests) were made to Ptgmedia.pearsoncmg.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Ptgmedia.pearsoncmg.com.
Page size can be reduced by 513.7 kB (68%)
754.4 kB
240.7 kB
In fact, the total size of Ibmpressbooks.com main page is 754.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Javascripts take 479.5 kB which makes up the majority of the site volume.
Potential reduce by 21.6 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 4.0 kB, which is 14% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 21.6 kB or 75% of the original size.
Potential reduce by 37.7 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, IBM Press Books needs image optimization as it can save up to 37.7 kB or 44% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 325.2 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 325.2 kB or 68% of the original size.
Potential reduce by 129.3 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Ibmpressbooks.com needs all CSS files to be minified and compressed as it can save up to 129.3 kB or 81% of the original size.
Number of requests can be reduced by 24 (60%)
40
16
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IBM Press Books. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
ibmpressbooks.com
146 ms
www.ibmpressbooks.com
222 ms
style.css
192 ms
modernizr.custom.js
132 ms
jquery.js
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global.js
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jquery-ui-1.10.2.custom.min.js
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swfobject.js
135 ms
fastclick.min.js
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1729
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micronav.js
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css
23 ms
code.js
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fbds.js
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logo.png
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facebook.png
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twitter.png
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youtube.png
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ShowCover.asp
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viewall_arrow.gif
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1729
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pearsonLogo.png
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pearsonTag.png
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analytics.js
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ShowCover.asp
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facebook.png
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yieldify_1449674132.js
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generic
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generic
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cs
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campaigns.json
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print.css
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pixel
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pixel
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geolocation.json
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yieldify-styles-min.css
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24 ms
ibmpressbooks.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
ARIA IDs are not unique
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Image elements do not have [alt] attributes
ibmpressbooks.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
ibmpressbooks.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document doesn't use legible font sizes
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ibmpressbooks.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Ibmpressbooks.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
ibmpressbooks.com
Open Graph description is not detected on the main page of IBM Press Books. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: