32.5 sec in total
836 ms
12 sec
19.6 sec
Click here to check amazing Tech Books For Free content for Indonesia. Otherwise, check out these important facts you probably never knew about techbooksforfree.com
Free Tech Book Downloads; Java, Linux, SQL Database, Perl/Python, C and C++, Microsoft, Programming, Security, Science ebooks, Free PDF, Ebooks & Manuals
Visit techbooksforfree.comWe analyzed Techbooksforfree.com page load time and found that the first response time was 836 ms and then it took 31.6 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
techbooksforfree.com performance score
name
value
score
weighting
Value2.0 s
83/100
10%
Value2.0 s
97/100
25%
Value2.0 s
99/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value2.0 s
99/100
10%
836 ms
162 ms
241 ms
243 ms
231 ms
Our browser made a total of 33 requests to load all elements on the main page. We found that 30% of them (10 requests) were addressed to the original Techbooksforfree.com, 24% (8 requests) were made to Pagead2.googlesyndication.com and 15% (5 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (3.2 sec) relates to the external source Googleads.g.doubleclick.net.
Page size can be reduced by 341.7 kB (51%)
670.8 kB
329.2 kB
In fact, the total size of Techbooksforfree.com main page is 670.8 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. 40% of websites need less resources to load. Javascripts take 458.9 kB which makes up the majority of the site volume.
Potential reduce by 35.1 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 35.1 kB or 73% of the original size.
Potential reduce by 20.5 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, Tech Books For Free needs image optimization as it can save up to 20.5 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 282.7 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 282.7 kB or 62% of the original size.
Potential reduce by 3.4 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. Techbooksforfree.com needs all CSS files to be minified and compressed as it can save up to 3.4 kB or 74% of the original size.
Number of requests can be reduced by 10 (38%)
26
16
The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tech Books For Free. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.
techbooksforfree.com
836 ms
rp.css
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c.css
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a.js
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show_ads.js
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ca-pub-7145876768079602.js
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zrt_lookup.html
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ads
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Electronics_1_Apr_2017_336x280.gif
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techbooksforfree.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
Heading elements are not in a sequentially-descending order
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
techbooksforfree.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Browser errors were logged to the console
Issues were logged in the Issues panel in Chrome Devtools
techbooksforfree.com SEO score
N/A
EN
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Techbooksforfree.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Techbooksforfree.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.
techbooksforfree.com
Open Graph description is not detected on the main page of Tech Books For Free. 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: