Tools & Wizards About Us

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

dtd.ru

Корпорация «Центр» - интернет магазин бытовой техники и электроники

Page Load Speed

8.3 sec in total

First Response

1.4 sec

Resources Loaded

6.6 sec

Page Rendered

324 ms

About Website

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

Интернет-магазин бытовой техники и электроники Корпорация «Центр» - это большой каталог товаров, низкие цены, удобные условия оплаты и доставки, гарантия надежности. Рассрочка и кредит.

Visit dtd.ru

Key Findings

We analyzed Dtd.ru page load time and found that the first response time was 1.4 sec and then it took 6.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

dtd.ru performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

58/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value15.5 s

0/100

10%

TBT (Total Blocking Time)

Value6,060 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value26.1 s

0/100

10%

Network Requests Diagram

dtd.ru

1364 ms

reset.css

566 ms

jquery.fancybox.css

725 ms

jquery-ui-1.10.3.custom.css

947 ms

jquery-1.9.1.min.js

1355 ms

Our browser made a total of 124 requests to load all elements on the main page. We found that 60% of them (75 requests) were addressed to the original Dtd.ru, 24% (30 requests) were made to Dtd.servisen.su and 3% (4 requests) were made to Static.siteheart.com. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Dtd.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 745.2 kB (41%)

Content Size

1.8 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dtd.ru main page is 1.8 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. 50% of websites need less resources to load. Images take 966.8 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 111.1 kB

  • Original 135.9 kB
  • After minification 125.8 kB
  • After compression 24.7 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 111.1 kB or 82% of the original size.

Image Optimization

-10%

Potential reduce by 98.2 kB

  • Original 966.8 kB
  • After minification 868.6 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. Dtd images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 350.3 kB

  • Original 506.8 kB
  • After minification 444.2 kB
  • After compression 156.4 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 350.3 kB or 69% of the original size.

CSS Optimization

-84%

Potential reduce by 185.4 kB

  • Original 220.1 kB
  • After minification 188.8 kB
  • After compression 34.6 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. Dtd.ru needs all CSS files to be minified and compressed as it can save up to 185.4 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 61 (51%)

Requests Now

120

After Optimization

59

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 120 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dtd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

dtd.ru accessibility score

70

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible 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

dtd.ru best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Requests the notification permission on page load

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

Missing source maps for large first-party JavaScript

SEO Factors

dtd.ru SEO score

76

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

High

Page is blocked from indexing

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dtd.ru 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 Dtd.ru 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

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