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name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value9.7 s

0/100

25%

SI (Speed Index)

Value10.4 s

8/100

10%

TBT (Total Blocking Time)

Value1,180 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.129

82/100

15%

TTI (Time to Interactive)

Value14.7 s

8/100

10%

dzveri.by

2682 ms

support.js

724 ms

gtm.js

64 ms

stylesheet.css

1549 ms

responsive.css

1692 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 92% of them (67 requests) were addressed to the original Dzveri.by, 3% (2 requests) were made to Google-analytics.com and 3% (2 requests) were made to Counter.yadro.ru. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Dzveri.by.

Content Size

995.6 kB

After Optimization

806.0 kB

In fact, the total size of Dzveri.by main page is 995.6 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. 45% of websites need less resources to load. Images take 623.3 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 103.8 kB

Original 120.4 kB
After minification 99.0 kB
After compression 16.6 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 21.4 kB, which is 18% 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 103.8 kB or 86% of the original size.

Image Optimization

-4%

Potential reduce by 26.9 kB

Original 623.3 kB
After minification 596.4 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. Dzveri images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 40.9 kB

Original 198.8 kB
After minification 197.6 kB
After compression 157.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 40.9 kB or 21% of the original size.

CSS Optimization

-34%

Potential reduce by 18.0 kB

Original 53.1 kB
After minification 53.0 kB
After compression 35.2 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. Dzveri.by needs all CSS files to be minified and compressed as it can save up to 18.0 kB or 34% of the original size.

Requests Now

After Optimization

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dzveri. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

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

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

High

Links are not crawlable

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/).

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 Dzveri.by 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 Dzveri.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

dzveri.by

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Купить двери в Минске | Двери в рассрочку, доступные цены

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

dzveri.by

support.js

gtm.js

stylesheet.css

responsive.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

dzveri.by

support.js

gtm.js

stylesheet.css

responsive.css

cosyone_slideshow.css

d_ajax_search.css

colorbox.css

seocmspro.css

wbbtheme.css

jquery.rating.css

jquery-1.7.1.min.js

jquery-ui-1.8.16.custom.min.js

owl.carousel.min.js

cosyone_common.js

tabs.js

jquery.cycle2.js

jquery.colorbox.js

jquery.colorbox-ru.js

blog.color.js

jquery.wysibb.min.js

ru.js

blog.bbimage.js

jquery.rating.js

geoip.css

jquery.geoip-module.js

jquery.cookie.js

jquery.colorbox.js

custom_colorbox.css

quickview.js

ga.js

__utm.gif

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