1.2 sec in total
130 ms
977 ms
141 ms
Welcome to kutub.info homepage info - get ready to check Kutub best content for Egypt right away, or after learning these important things about kutub.info
موقع كتب يقدم كتب مجانية عربية في جميع مجالات الحاسب والإكترونيات والتقنية.
Visit kutub.infoWe analyzed Kutub.info page load time and found that the first response time was 130 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.
kutub.info performance score
name
value
score
weighting
Value4.0 s
24/100
10%
Value15.6 s
0/100
25%
Value10.3 s
8/100
10%
Value1,600 ms
12/100
30%
Value0.549
13/100
15%
Value16.7 s
5/100
10%
130 ms
36 ms
49 ms
159 ms
6 ms
Our browser made a total of 65 requests to load all elements on the main page. We found that 34% of them (22 requests) were addressed to the original Kutub.info, 18% (12 requests) were made to Static.xx.fbcdn.net and 9% (6 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (213 ms) relates to the external source Mafooly.com.
Page size can be reduced by 192.0 kB (53%)
359.7 kB
167.7 kB
In fact, the total size of Kutub.info main page is 359.7 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. 60% of websites need less resources to load. Javascripts take 217.2 kB which makes up the majority of the site volume.
Potential reduce by 12.9 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 12.9 kB or 74% of the original size.
Potential reduce by 9.0 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. Kutub images are well optimized though.
Potential reduce by 148.7 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 148.7 kB or 68% of the original size.
Potential reduce by 21.4 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. Kutub.info needs all CSS files to be minified and compressed as it can save up to 21.4 kB or 77% of the original size.
Number of requests can be reduced by 25 (40%)
63
38
The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kutub. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
kutub.info
130 ms
scaffold.css
36 ms
main.css
49 ms
all.js
159 ms
show_ads.js
6 ms
all.js
45 ms
mapp.png
213 ms
widgets.js
169 ms
zrt_lookup.html
102 ms
show_ads_impl.js
63 ms
main_logo.gif
30 ms
header_links.jpg
30 ms
header_line.jpg
30 ms
url.jpg
32 ms
art.png
100 ms
add_book.gif
101 ms
selected_websites.gif
101 ms
library.gif
101 ms
join_us.gif
122 ms
email_us.gif
121 ms
man.gif
100 ms
book.jpg
101 ms
homepage.gif
100 ms
fav.gif
119 ms
ads
157 ms
162 ms
ads
185 ms
osd.js
60 ms
text_bg.gif
41 ms
recent_books.jpg
40 ms
bullet.gif
41 ms
xd_arbiter.php
74 ms
xd_arbiter.php
104 ms
ads
118 ms
ads
202 ms
footer-wrapper.jpg
40 ms
ga.js
40 ms
__utm.gif
12 ms
likebox.php
134 ms
abg.js
28 ms
like.php
149 ms
13425195152082837260
12 ms
s
4 ms
m_js_controller.js
7 ms
googlelogo_color_112x36dp.png
53 ms
x_button_blue2.png
22 ms
eBwTbg8G3cT.css
83 ms
lEC7t4ATkwe.css
89 ms
_rx8naC75Dy.js
101 ms
x5F9OMjKyLw.js
117 ms
ICDbTSzjQEg.js
115 ms
TTCre3391I0.js
115 ms
E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js
2 ms
vpc6VNjRPXV.js
71 ms
LVx-xkvaJ0b.png
28 ms
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57 ms
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109 ms
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44 ms
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24 ms
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I6-MnjEovm5.js
16 ms
vlXaquuXMrr.js
16 ms
ui
37 ms
kutub.info accessibility score
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-*] attributes do not match their roles
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
<frame> or <iframe> elements do not have a title
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
kutub.info 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
kutub.info SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 uses legible font sizes
AR
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kutub.info can be misinterpreted by Google and other search engines. Our service has detected that Arabic 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 Kutub.info 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.
kutub.info
Open Graph description is not detected on the main page of Kutub. 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: