Tools & Wizards About Us
bestseller.kz screenshot

Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

bestseller.kz

Казахстанский книжный интернет-магазин | Bestseller

Page Load Speed

8.2 sec in total

First Response

656 ms

Resources Loaded

7.2 sec

Page Rendered

332 ms

bestseller.kz screenshot

About Website

Visit bestseller.kz now to see the best up-to-date Bestseller content for Kazakhstan and also check out these interesting facts you probably never knew about bestseller.kz

В интернет-магазине Bestseller вы найдете большой выбор книжной продукции по привлекательным ценам. Доставка во все города Казахстана.

Visit bestseller.kz

Key Findings

We analyzed Bestseller.kz page load time and found that the first response time was 656 ms and then it took 7.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

bestseller.kz performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value10.4 s

0/100

25%

SI (Speed Index)

Value10.6 s

7/100

10%

TBT (Total Blocking Time)

Value390 ms

69/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value13.4 s

11/100

10%

Network Requests Diagram

bestseller.kz

656 ms

bestseller.kz

1122 ms

bestseller.kz

481 ms

css

35 ms

notice.css

547 ms

Our browser made a total of 154 requests to load all elements on the main page. We found that 91% of them (140 requests) were addressed to the original Bestseller.kz, 4% (6 requests) were made to Fonts.gstatic.com and 1% (2 requests) were made to Mc.yandex.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Bestseller.kz.

Page Optimization Overview & Recommendations

Page size can be reduced by 881.4 kB (40%)

Content Size

2.2 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bestseller.kz main page is 2.2 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 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 609.7 kB

  • Original 688.2 kB
  • After minification 519.1 kB
  • After compression 78.5 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 169.0 kB, which is 25% 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 609.7 kB or 89% of the original size.

Image Optimization

-7%

Potential reduce by 73.1 kB

  • Original 1.1 MB
  • After minification 1.0 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. Bestseller images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 141 B

  • Original 88.4 kB
  • After minification 88.4 kB
  • After compression 88.2 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

-64%

Potential reduce by 198.5 kB

  • Original 310.1 kB
  • After minification 156.1 kB
  • After compression 111.6 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. Bestseller.kz needs all CSS files to be minified and compressed as it can save up to 198.5 kB or 64% of the original size.

Requests Breakdown

Number of requests can be reduced by 92 (65%)

Requests Now

141

After Optimization

49

  • Images
  • JavaScript
  • CSS

The browser has sent 141 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bestseller. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 57 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bestseller.kz

bestseller.kz

656 ms

bestseller.kz

bestseller.kz

1122 ms

bestseller.kz

bestseller.kz

481 ms

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css

35 ms

notice.css

notice.css

547 ms

ui.design-tokens.css

ui.design-tokens.css

553 ms

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552 ms

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549 ms

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736 ms

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659 ms

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913 ms

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733 ms

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734 ms

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732 ms

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839 ms

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917 ms

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917 ms

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917 ms

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1019 ms

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1647 ms

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1282 ms

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1200 ms

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1274 ms

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1272 ms

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1277 ms

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1380 ms

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1453 ms

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1454 ms

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1458 ms

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1835 ms

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1565 ms

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1634 ms

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1635 ms

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1640 ms

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js

55 ms

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1580 ms

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1345 ms

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1286 ms

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1287 ms

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1391 ms

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1346 ms

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1275 ms

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1271 ms

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1286 ms

moment.min.js

moment.min.js

1285 ms

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1298 ms

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jquery.menu-aim.js

1283 ms

velocity.js

velocity.js

1456 ms

velocity.ui.js

velocity.ui.js

1275 ms

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jquery.validate.min.js

1291 ms

jquery.inputmask.bundle.min.js

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1185 ms

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1122 ms

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1206 ms

equalize.min.js

equalize.min.js

1277 ms

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1274 ms

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1189 ms

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1126 ms

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1208 ms

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1269 ms

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1163 ms

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1112 ms

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1115 ms

blocks.js

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1120 ms

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1160 ms

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1155 ms

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main.js

1283 ms

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1114 ms

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1105 ms

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1112 ms

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1166 ms

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1250 ms

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25 ms

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tag.js

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1065 ms

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1281 ms

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1316 ms

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1271 ms

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1059 ms

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1070 ms

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1101 ms

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Close_mask.svg

1135 ms

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next.svg

1186 ms

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Phone_black.svg

1265 ms

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Catalog_menu.svg

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Accessibility Review

bestseller.kz accessibility score

90

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

bestseller.kz best practices score

83

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

Page has valid source maps

SEO Factors

bestseller.kz SEO score

88

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Bestseller.kz 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 Bestseller.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

bestseller.kz

Open Graph data is detected on the main page of Bestseller. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: