1.4 sec in total
235 ms
852 ms
280 ms
Welcome to source4book.com homepage info - get ready to check Source4book best content right away, or after learning these important things about source4book.com
Source4book.com compares prices at major online bookstores to search the lowest prices on new, used books and textbooks. Provides book Reviews and Rating for every book.
Visit source4book.comWe analyzed Source4book.com page load time and found that the first response time was 235 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
source4book.com performance score
name
value
score
weighting
Value1.3 s
98/100
10%
Value1.3 s
100/100
25%
Value1.3 s
100/100
10%
Value10 ms
100/100
30%
Value0.022
100/100
15%
Value2.4 s
98/100
10%
235 ms
87 ms
140 ms
142 ms
103 ms
Our browser made a total of 65 requests to load all elements on the main page. We found that 83% of them (54 requests) were addressed to the original Source4book.com, 15% (10 requests) were made to Images.amazon.com and 2% (1 request) were made to Tqlkg.com. The less responsive or slowest element that took the longest time to load (452 ms) belongs to the original domain Source4book.com.
Page size can be reduced by 270.4 kB (73%)
370.6 kB
100.2 kB
In fact, the total size of Source4book.com main page is 370.6 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 255.4 kB which makes up the majority of the site volume.
Potential reduce by 55.7 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 8.7 kB, which is 13% 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 55.7 kB or 86% of the original size.
Potential reduce by 196 B
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. Source4book images are well optimized though.
Potential reduce by 201.5 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 201.5 kB or 79% of the original size.
Potential reduce by 13.1 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. Source4book.com needs all CSS files to be minified and compressed as it can save up to 13.1 kB or 82% of the original size.
Number of requests can be reduced by 21 (33%)
64
43
The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Source4book. 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 as a result speed up the page load time.
source4book.com
235 ms
styles.css
87 ms
n2CoreLibs-n2v2.css
140 ms
acp.js
142 ms
source4book.js
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overlibmws.js
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overlibmws_filter.js
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n2CoreLibs-function.js
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1338099132.01._SCTHUMBZZZ_.jpg
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image-1725017-10435427
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lower-left-corner.gif
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spacer.gif
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lower-right-corner.gif
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homepage.jpg
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navamazon.gif
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xml.jpg
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a1books.gif
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abebooks.gif
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abebooks.co.uk.gif
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alibris.gif
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amazon.gif
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amazon.ca.gif
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amazon.co.uk.gif
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barnesandnoble.gif
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BarristerBooks.gif
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biblio.gif
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biggerbooks.gif
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bookbyte.gif
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bookcloseouts.gif
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bookpool.gif
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booksamillion.gif
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bunchesofbooks.gif
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buy.gif
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chapters.indigo.ca.gif
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chegg.gif
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christianbook.gif
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ebay.gif
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ecampus.gif
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elephantbooks.gif
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half.gif
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overstock.gif
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phatcampus.gif
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powells.gif
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shop.gif
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target.gif
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textbooksrus.gif
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textbookx.gif
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valorebooks.gif
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walmart.gif
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n2CoreLibs-utilities.js
451 ms
n2CoreLibs-events.js
452 ms
n2CoreLibs-simplePopover.js
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n2CoreLibs-staticPopover.js
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n2CoreLibs-popoverPane.js
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n2CoreLibs-dynUpdate.js
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n2CoreLibs-multiPanePopover.js
373 ms
source4book.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.
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
Form elements do not have associated labels
source4book.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Browser errors were logged to the console
source4book.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
EN
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Source4book.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 Source4book.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
source4book.com
Open Graph description is not detected on the main page of Source4book. 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: