3.2 sec in total
358 ms
2.1 sec
782 ms
Visit coollib.net now to see the best up-to-date Coollib content for Russia and also check out these interesting facts you probably never knew about coollib.net
CoolLib ( КулЛиб ) - Классная библиотека! Много книг. Все книги можно скачать и прочитать бесплатно и без регистрации. Самиздат (СИ). Любительский перевод (ЛП). Фанфики, бестселлеры, топ книг. Читать ...
Visit coollib.netWe analyzed Coollib.net page load time and found that the first response time was 358 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
coollib.net performance score
name
value
score
weighting
Value1.8 s
88/100
10%
Value7.0 s
6/100
25%
Value6.4 s
41/100
10%
Value980 ms
28/100
30%
Value0.089
92/100
15%
Value9.4 s
31/100
10%
358 ms
171 ms
262 ms
482 ms
5 ms
Our browser made a total of 81 requests to load all elements on the main page. We found that 20% of them (16 requests) were addressed to the original Coollib.net, 20% (16 requests) were made to Ftp.coollib.net and 16% (13 requests) were made to Vk.com. The less responsive or slowest element that took the longest time to load (538 ms) relates to the external source Vk.com.
Page size can be reduced by 418.8 kB (47%)
884.4 kB
465.6 kB
In fact, the total size of Coollib.net main page is 884.4 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. 55% of websites need less resources to load. Javascripts take 441.9 kB which makes up the majority of the site volume.
Potential reduce by 60.9 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 60.9 kB or 73% of the original size.
Potential reduce by 12.5 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. Coollib images are well optimized though.
Potential reduce by 274.4 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 274.4 kB or 62% of the original size.
Potential reduce by 71.1 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. Coollib.net needs all CSS files to be minified and compressed as it can save up to 71.1 kB or 80% of the original size.
Number of requests can be reduced by 33 (44%)
75
42
The browser has sent 75 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coollib. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
coollib.net
358 ms
codefilter.css
171 ms
css_c95bf16ac9e4756af7a853e7367a02c3.css
262 ms
js_caa8285cae15cdffec37da51a8b9d89c.jsmin.js
482 ms
adsbygoogle.js
5 ms
openapi.js
395 ms
notice.php
172 ms
rcode.4218bc5b38.js
391 ms
t105005.jpg
179 ms
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410 ms
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414 ms
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442 ms
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429 ms
t195422.jpg
523 ms
logo.png
90 ms
sheet_s.png
143 ms
menu-leaf.png
91 ms
menu-collapsed.png
162 ms
picture-3.jpg
173 ms
88x31.jpg
254 ms
230x31.jpg
256 ms
book-banner.gif
445 ms
picture-1383.jpg
191 ms
feed.png
203 ms
ca-pub-3386542846300210.js
62 ms
zrt_lookup.html
65 ms
show_ads_impl.js
68 ms
aci.js
202 ms
upload.gif
144 ms
postquote.png
180 ms
widget_community.php
314 ms
hit
277 ms
ads
164 ms
osd.js
12 ms
expanded.png
107 ms
m
276 ms
ads
201 ms
ads
206 ms
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m_js_controller.js
29 ms
abg.js
46 ms
favicon
84 ms
googlelogo_color_112x36dp.png
77 ms
nessie_icon_tiamat_white.png
39 ms
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54 ms
x_button_blue2.png
45 ms
favicon
75 ms
loader_nav19127_3.js
166 ms
lite.css
165 ms
lite.js
538 ms
lang3_0.js
290 ms
widget_community.css
288 ms
xdm.js
291 ms
al_community.js
291 ms
favicon
119 ms
280 ms
E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js
13 ms
mtch.php
204 ms
match
195 ms
counter
320 ms
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379 ms
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camera_50.png
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w_logo.png
131 ms
coollib.net accessibility score
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
coollib.net 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
Detected JavaScript libraries
Browser errors were logged to the console
coollib.net SEO score
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
Tap targets are not sized appropriately
RU
RU
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Coollib.net can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it matches the claimed language. Our system also found out that Coollib.net 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.
coollib.net
Open Graph description is not detected on the main page of Coollib. 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: