Tools & Wizards About Us
kolesa.kz screenshot

Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

kolesa.kz

Колёса — продажа авто в Казахстане. Весь авторынок Казахстана на одном сайте kolesa.kz

Page Load Speed

7 sec in total

First Response

1.2 sec

Resources Loaded

5.4 sec

Page Rendered

313 ms

kolesa.kz screenshot

About Website

Welcome to kolesa.kz homepage info - get ready to check Kolesa best content for Kazakhstan right away, or after learning these important things about kolesa.kz

Колёса - все объявления о продаже авто в Казахстане на одном сайте: легковые, грузовые автомобили, мототехника и спецтехника, запчасти. Последние автоновости, тест-драйвы, полезные советы.

Visit kolesa.kz

Key Findings

We analyzed Kolesa.kz page load time and found that the first response time was 1.2 sec and then it took 5.8 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

kolesa.kz performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value11.1 s

0/100

25%

SI (Speed Index)

Value12.5 s

3/100

10%

TBT (Total Blocking Time)

Value8,120 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.208

60/100

15%

TTI (Time to Interactive)

Value24.6 s

0/100

10%

Network Requests Diagram

kolesa.kz

1248 ms

main-vendor.css

366 ms

main.css

571 ms

client.min.js

1316 ms

main-vendor.js

1507 ms

Our browser made a total of 152 requests to load all elements on the main page. We found that 7% of them (10 requests) were addressed to the original Kolesa.kz, 28% (42 requests) were made to Photos-b-kl.kcdn.kz and 28% (42 requests) were made to Photos-a-kl.kcdn.kz. The less responsive or slowest element that took the longest time to load (3 sec) relates to the external source Static-kl.kcdn.kz.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.8 MB (42%)

Content Size

9.1 MB

After Optimization

5.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kolesa.kz main page is 9.1 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 70% of websites need less resources to load. Images take 4.9 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 329.9 kB

  • Original 394.1 kB
  • After minification 341.2 kB
  • After compression 64.2 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 52.9 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 329.9 kB or 84% of the original size.

Image Optimization

-15%

Potential reduce by 736.4 kB

  • Original 4.9 MB
  • After minification 4.2 MB

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, Kolesa needs image optimization as it can save up to 736.4 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 1.7 MB

  • Original 2.5 MB
  • After minification 2.5 MB
  • After compression 803.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 1.7 MB or 68% of the original size.

CSS Optimization

-84%

Potential reduce by 1.0 MB

  • Original 1.2 MB
  • After minification 1.1 MB
  • After compression 200.5 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. Kolesa.kz needs all CSS files to be minified and compressed as it can save up to 1.0 MB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 37 (26%)

Requests Now

145

After Optimization

108

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 145 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kolesa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

kolesa.kz

kolesa.kz

1248 ms

main-vendor.css

main-vendor.css

366 ms

main.css

main.css

571 ms

client.min.js

client.min.js

1316 ms

main-vendor.js

main-vendor.js

1507 ms

main-region.js

main-region.js

368 ms

authToken.js

authToken.js

629 ms

main-index.js

main-index.js

555 ms

authToken.js

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766 ms

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563 ms

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970 ms

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1001 ms

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1002 ms

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1187 ms

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1191 ms

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3024 ms

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1896 ms

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744 ms

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1116 ms

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1823 ms

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1835 ms

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1851 ms

client.min.css

client.min.css

191 ms

sprite.png

sprite.png

1303 ms

day-sky.png

day-sky.png

270 ms

tad-corn.png

tad-corn.png

245 ms

board-new.jpg

board-new.jpg

235 ms

analytics.js

analytics.js

108 ms

gtm.js

gtm.js

108 ms

gpt.js

gpt.js

63 ms

s.php

s.php

264 ms

collect

collect

26 ms

collect

collect

69 ms

watch.js

watch.js

171 ms

rtrg

rtrg

409 ms

fbevents.js

fbevents.js

7 ms

pubads_impl_81.js

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6 ms

30 ms

container.html

container.html

14 ms

2-120x90.jpg

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1318 ms

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1326 ms

ga-audiences

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36 ms

watch.js

watch.js

456 ms

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279 ms

ads

ads

226 ms

8c0b73-44723c-562805.html

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1335 ms

context.js

context.js

247 ms

eb21be-bbde9f-199877.html

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2248 ms

0.gif

0.gif

405 ms

ac15dc-390371-890790.gif

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1854 ms

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1266 ms

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1150 ms

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1147 ms

expansion_embed.js

expansion_embed.js

29 ms

css

css

85 ms

m_js_controller.js

m_js_controller.js

63 ms

abg.js

abg.js

66 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

38 ms

imgad

imgad

65 ms

nessie_icon_magazine_black.png

nessie_icon_magazine_black.png

68 ms

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67 ms

osd.js

osd.js

48 ms

context_static_r1063.js

context_static_r1063.js

335 ms

x_button_blue2.png

x_button_blue2.png

33 ms

s

s

64 ms

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55 ms

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58 ms

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60 ms

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90 ms

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44 ms

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16 ms

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781 ms

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13 ms

Accessibility Review

kolesa.kz accessibility score

82

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

Buttons do not have an accessible name

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.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

kolesa.kz best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

kolesa.kz SEO score

100

Search Engine Optimization Advices

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kolesa.kz can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it does not match the claimed English language. Our system also found out that Kolesa.kz 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

kolesa.kz

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