Tools & Wizards About Us
coders-library.ru screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 56

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

coders-library.ru

Библиотека программиста - Книги по программированию, исходники, компоненты, статьи и обзоры по всем языкам программирования. Компоненты и исходники пр...

Page Load Speed

6.2 sec in total

First Response

571 ms

Resources Loaded

5.5 sec

Page Rendered

207 ms

coders-library.ru screenshot

About Website

Click here to check amazing Coders Library content for Russia. Otherwise, check out these important facts you probably never knew about coders-library.ru

Книги по программированию, исходники, компоненты, статьи и обзоры по всем языкам программирования. Компоненты и исходники программ на разных языках программирования., .

Visit coders-library.ru

Key Findings

We analyzed Coders-library.ru page load time and found that the first response time was 571 ms and then it took 5.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

coders-library.ru performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

54/100

10%

LCP (Largest Contentful Paint)

Value11.1 s

0/100

25%

SI (Speed Index)

Value7.4 s

27/100

10%

TBT (Total Blocking Time)

Value150 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.023

100/100

15%

TTI (Time to Interactive)

Value14.1 s

10/100

10%

Network Requests Diagram

coders-library.ru

571 ms

style.css

133 ms

global_func.js

260 ms

block_error.js

262 ms

ajax_class.js

262 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 76% of them (86 requests) were addressed to the original Coders-library.ru, 4% (5 requests) were made to Css.contema.ru and 4% (5 requests) were made to Img.contema.ru. The less responsive or slowest element that took the longest time to load (3.1 sec) relates to the external source Acg.contema.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 202.1 kB (50%)

Content Size

402.7 kB

After Optimization

200.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Coders-library.ru main page is 402.7 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. 35% of websites need less resources to load. Images take 308.5 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 51.8 kB

  • Original 60.4 kB
  • After minification 52.5 kB
  • After compression 8.6 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 7.9 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 51.8 kB or 86% of the original size.

Image Optimization

-46%

Potential reduce by 141.9 kB

  • Original 308.5 kB
  • After minification 166.7 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, Coders Library needs image optimization as it can save up to 141.9 kB or 46% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-9%

Potential reduce by 1.3 kB

  • Original 13.9 kB
  • After minification 13.9 kB
  • After compression 12.6 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. This website has mostly compressed JavaScripts.

CSS Optimization

-36%

Potential reduce by 7.1 kB

  • Original 19.9 kB
  • After minification 19.8 kB
  • After compression 12.8 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. Coders-library.ru needs all CSS files to be minified and compressed as it can save up to 7.1 kB or 36% of the original size.

Requests Breakdown

Number of requests can be reduced by 65 (63%)

Requests Now

103

After Optimization

38

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 103 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coders Library. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

coders-library.ru

coders-library.ru

571 ms

style.css

style.css

133 ms

global_func.js

global_func.js

260 ms

block_error.js

block_error.js

262 ms

ajax_class.js

ajax_class.js

262 ms

SwitchMenu.js

SwitchMenu.js

263 ms

stylesheet.css

stylesheet.css

265 ms

top100.jcn

top100.jcn

374 ms

Contema.js

Contema.js

468 ms

tool_box.js

tool_box.js

264 ms

engine.css

engine.css

258 ms

theme.css

theme.css

262 ms

blocks.css

blocks.css

260 ms

menu.css

menu.css

262 ms

stylesheet.css

stylesheet.css

280 ms

top100.jcn

top100.jcn

898 ms

top_talling.gif

top_talling.gif

131 ms

h_back.jpg

h_back.jpg

412 ms

logo.jpg

logo.jpg

263 ms

m1.jpg

m1.jpg

130 ms

m2.jpg

m2.jpg

132 ms

m3.jpg

m3.jpg

133 ms

m4.jpg

m4.jpg

258 ms

m5.jpg

m5.jpg

259 ms

top2.gif

top2.gif

261 ms

bottom2.gif

bottom2.gif

265 ms

left2.gif

left2.gif

386 ms

right2.gif

right2.gif

388 ms

rtc2.gif

rtc2.gif

392 ms

ltc2.gif

ltc2.gif

391 ms

lbc2.gif

lbc2.gif

396 ms

rbc2.gif

rbc2.gif

514 ms

box_line.gif

box_line.gif

674 ms

side3.gif

side3.gif

521 ms

lbc3.gif

lbc3.gif

520 ms

rbc3.gif

rbc3.gif

527 ms

0.gif

0.gif

541 ms

newuser.png

newuser.png

642 ms

passlost.png

passlost.png

651 ms

baseline.png

baseline.png

651 ms

input_btn.png

input_btn.png

660 ms

home.png

home.png

672 ms

account.png

account.png

770 ms

top_users.png

top_users.png

786 ms

voting.png

voting.png

784 ms

search.png

search.png

789 ms

rss_info.png

rss_info.png

799 ms

forum.png

forum.png

803 ms

recommend.png

recommend.png

897 ms

contact.png

contact.png

914 ms

books.gif

books.gif

916 ms

ajax.php

ajax.php

928 ms

aci.js

aci.js

662 ms

hit

hit

259 ms

folder.gif

folder.gif

813 ms

files.png

files.png

814 ms

copy.png

copy.png

903 ms

refresh.png

refresh.png

918 ms

content.png

content.png

795 ms

cms.gif

cms.gif

811 ms

album.png

album.png

814 ms

jokes.png

jokes.png

814 ms

news.png

news.png

898 ms

hit

hit

524 ms

about.png

about.png

794 ms

rules.gif

rules.gif

796 ms

menus.png

menus.png

808 ms

lotros.ru.png

lotros.ru.png

946 ms

library.gif

library.gif

810 ms

program.gif

program.gif

881 ms

content.gif

content.gif

796 ms

scripts.gif

scripts.gif

792 ms

cms.gif

cms.gif

806 ms

templates.gif

templates.gif

810 ms

icons.gif

icons.gif

877 ms

stories.gif

stories.gif

796 ms

contacts.gif

contacts.gif

792 ms

voting.gif

voting.gif

803 ms

search.gif

search.gif

808 ms

ntitlebg.png

ntitlebg.png

797 ms

h_back1.jpg

h_back1.jpg

713 ms

h_back3.jpg

h_back3.jpg

736 ms

getposter.ashx

getposter.ashx

3088 ms

pluso-like.js

pluso-like.js

14 ms

navibar1_bg.png

navibar1_bg.png

718 ms

d_add.png

d_add.png

727 ms

warnings_bg.png

warnings_bg.png

743 ms

info_icon.gif

info_icon.gif

744 ms

getbanner.ashx

getbanner.ashx

1878 ms

lb11969_3.js

lb11969_3.js

587 ms

f_tall.gif

f_tall.gif

802 ms

f_left.gif

f_left.gif

800 ms

f_right.gif

f_right.gif

788 ms

member.png

member.png

773 ms

anony.png

anony.png

793 ms

group.png

group.png

794 ms

genall.php

genall.php

348 ms

genall.php

genall.php

394 ms

hit;Luxup

hit;Luxup

131 ms

367 ms

hit;Luxup

hit;Luxup

131 ms

agcb.css

agcb.css

375 ms

getimage.ashx

getimage.ashx

807 ms

main.js

main.js

128 ms

832809206

832809206

125 ms

cilogo.png

cilogo.png

123 ms

poster.css

poster.css

129 ms

png.gif

png.gif

136 ms

getimage.ashx

getimage.ashx

141 ms

getimage.ashx

getimage.ashx

246 ms

getimage.ashx

getimage.ashx

396 ms

ilogo.png

ilogo.png

127 ms

cnt-arr.gif

cnt-arr.gif

243 ms

Accessibility Review

coders-library.ru accessibility score

56

Accessibility Issues

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

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

coders-library.ru best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

coders-library.ru SEO score

69

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    RU

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Coders-library.ru 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 Coders-library.ru 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.

Social Sharing Optimization

coders-library.ru

Open Graph description is not detected on the main page of Coders Library. 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: