Access dtd.ru. Корпорация «Центр» - интернет магазин бытовой техники и электроники

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%

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.

Content Size

1.8 MB

After Optimization

1.1 MB

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

-67%

Potential reduce by 313.9 kB

Original 470.3 kB
After minification 407.7 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 313.9 kB or 67% 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 Now

120

After Optimization

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.

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

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

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

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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

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

High

Page is blocked from indexing

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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

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

dtd.ru

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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Корпорация «Центр» - интернет магазин бытовой техники и электроники

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

dtd.ru

reset.css

jquery.fancybox.css

jquery-ui-1.10.3.custom.css

jquery-1.9.1.min.js

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

dtd.ru

reset.css

jquery.fancybox.css

jquery-ui-1.10.3.custom.css

jquery-1.9.1.min.js

jcarousellite-a11.js

jcarousellite-1.0.1.js

jquery.mousewheel-3.0.6.pack.js

jquery.fancybox.pack.js

jquery.maskedinput.min.js

swfobject.js

jquery-ui-1.10.3.custom.min.js

scroll.top.js

main.js

core.css

style.css

template_styles.css

core.js

core_ajax.js

json2.min.js

core_ls.js

session.js

jquery.cookie.js

sprintf.js

script.js

script.js

conversion.js

kladrAutocomplete.css

kladrAutocomplete.js

ba.js

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captcha.php

captcha.php

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