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programmer-lib.ru screenshot

Report Summary

  • 85

    Performance

    Renders faster than
    89% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

programmer-lib.ru

Page Load Speed

2.5 sec in total

First Response

478 ms

Resources Loaded

1.8 sec

Page Rendered

220 ms

programmer-lib.ru screenshot

About Website

Welcome to programmer-lib.ru homepage info - get ready to check Programmer Lib best content for Russia right away, or after learning these important things about programmer-lib.ru

Библиотека программирования

Visit programmer-lib.ru

Key Findings

We analyzed Programmer-lib.ru page load time and found that the first response time was 478 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

programmer-lib.ru performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.5 s

100/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.858

4/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

programmer-lib.ru

478 ms

www.programmer-lib.ru

799 ms

style.css

135 ms

label.gif

277 ms

head.jpg

445 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 88% of them (14 requests) were addressed to the original Programmer-lib.ru, 13% (2 requests) were made to Counter.yadro.ru. The less responsive or slowest element that took the longest time to load (799 ms) belongs to the original domain Programmer-lib.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 21.0 kB (24%)

Content Size

87.1 kB

After Optimization

66.2 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Programmer-lib.ru main page is 87.1 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. Only 10% of websites need less resources to load. Images take 58.7 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 16.4 kB

  • Original 22.7 kB
  • After minification 22.1 kB
  • After compression 6.3 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 16.4 kB or 72% of the original size.

Image Optimization

-0%

Potential reduce by 1 B

  • Original 58.7 kB
  • After minification 58.7 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. Programmer Lib images are well optimized though.

CSS Optimization

-80%

Potential reduce by 4.6 kB

  • Original 5.7 kB
  • After minification 3.8 kB
  • After compression 1.1 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. Programmer-lib.ru needs all CSS files to be minified and compressed as it can save up to 4.6 kB or 80% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

  • Images
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Programmer Lib. According to our analytics all requests are already optimized.

Network Requests Diagram

programmer-lib.ru

programmer-lib.ru

478 ms

www.programmer-lib.ru

www.programmer-lib.ru

799 ms

style.css

style.css

135 ms

label.gif

label.gif

277 ms

head.jpg

head.jpg

445 ms

menu.gif

menu.gif

286 ms

nuzhn.gif

nuzhn.gif

298 ms

sitenews.gif

sitenews.gif

308 ms

l1.gif

l1.gif

142 ms

hit

hit

254 ms

vote.gif

vote.gif

265 ms

googlemotor.jpg

googlemotor.jpg

172 ms

vkudal.jpg

vkudal.jpg

253 ms

l1.gif

l1.gif

147 ms

hit

hit

128 ms

vote.gif

vote.gif

136 ms

Accessibility Review

programmer-lib.ru accessibility score

52

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

High

<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

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

programmer-lib.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

programmer-lib.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

    EN

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Programmer-lib.ru 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 Programmer-lib.ru main page’s claimed encoding is windows-1251. 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.

Social Sharing Optimization

programmer-lib.ru

Open Graph description is not detected on the main page of Programmer Lib. 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: