Tools & Wizards About Us
oz.by screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

oz.by

OZ.by — интернет-магазин. Книги, игры, косметика, товары для дома, творчества, подарки, продукты. Доставка по Беларуси.

Page Load Speed

8.5 sec in total

First Response

387 ms

Resources Loaded

7 sec

Page Rendered

1.1 sec

oz.by screenshot

About Website

Visit oz.by now to see the best up-to-date OZ content for Belarus and also check out these interesting facts you probably never knew about oz.by

OZ приносит радость :) Покупайте на OZ.by книги, подарки и сувениры, настольные игры, детские игрушки, косметику, товары для дома, туристические товары, продукты питания в Минске, Гомеле, Бресте, Грод...

Visit oz.by

Key Findings

We analyzed Oz.by page load time and found that the first response time was 387 ms and then it took 8.1 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

oz.by performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value13.2 s

0/100

25%

SI (Speed Index)

Value25.1 s

0/100

10%

TBT (Total Blocking Time)

Value3,500 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value24.2 s

0/100

10%

Network Requests Diagram

oz.by

387 ms

oz.by

1143 ms

webim.v1714638177.css

286 ms

geometria-font.v1714638177.css

393 ms

reset_desktop.v1714638177.css

399 ms

Our browser made a total of 202 requests to load all elements on the main page. We found that 47% of them (95 requests) were addressed to the original Oz.by, 28% (57 requests) were made to S1-images.ozstatic.by and 3% (7 requests) were made to Top-fwz1.mail.ru. The less responsive or slowest element that took the longest time to load (2.8 sec) relates to the external source S1-images.ozstatic.by.

Page Optimization Overview & Recommendations

Page size can be reduced by 339.8 kB (16%)

Content Size

2.1 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Oz.by main page is 2.1 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 303.0 kB

  • Original 353.5 kB
  • After minification 340.8 kB
  • After compression 50.4 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 303.0 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 3.4 kB

  • Original 1.2 MB
  • After minification 1.2 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. OZ images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 4.5 kB

  • Original 398.3 kB
  • After minification 398.3 kB
  • After compression 393.9 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

-31%

Potential reduce by 28.9 kB

  • Original 94.0 kB
  • After minification 92.7 kB
  • After compression 65.2 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. Oz.by needs all CSS files to be minified and compressed as it can save up to 28.9 kB or 31% of the original size.

Requests Breakdown

Number of requests can be reduced by 104 (53%)

Requests Now

195

After Optimization

91

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 195 CSS, Javascripts, AJAX and image requests in order to completely render the main page of OZ. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 65 to 1 for JavaScripts and from 28 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

oz.by

oz.by

387 ms

oz.by

oz.by

1143 ms

webim.v1714638177.css

webim.v1714638177.css

286 ms

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399 ms

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2380 ms

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2343 ms

js

js

131 ms

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127 ms

analytics.js

analytics.js

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destination

destination

928 ms

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980 ms

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1009 ms

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collect

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Accessibility Review

oz.by accessibility score

98

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.

Best Practices

oz.by best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

oz.by SEO score

92

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

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Oz.by can be misinterpreted by Google and other search engines. Our service has detected that Russian 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 Oz.by 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

oz.by

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