Tools & Wizards About Us
topcen.ru screenshot

Report Summary

  • 84

    Performance

    Renders faster than
    88% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

topcen.ru

Доска объявлений topcen.ru: сайт бесплатных частных объявлений - купля/продажа б/у товаров на topcen.ru

Page Load Speed

38.9 sec in total

First Response

8.1 sec

Resources Loaded

30.5 sec

Page Rendered

330 ms

topcen.ru screenshot

About Website

Welcome to topcen.ru homepage info - get ready to check Topcen best content right away, or after learning these important things about topcen.ru

topcen.ru - крупнейшая доска бесплатных объявлений. Огромная база предложений по темам: недвижимость, работа, транспорт, купля/продажа товаров, услуги и многое другое!

Visit topcen.ru

Key Findings

We analyzed Topcen.ru page load time and found that the first response time was 8.1 sec and then it took 30.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

topcen.ru performance score

84

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

62/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

63/100

25%

SI (Speed Index)

Value3.8 s

84/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.029

100/100

15%

TTI (Time to Interactive)

Value3.7 s

91/100

10%

Network Requests Diagram

topcen.ru

8054 ms

topcen.ru

951 ms

all-styles.~E91185.css

1076 ms

domain-shop-lot.~8D7636.css

527 ms

shop-widget.~BC12B1.css

454 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Topcen.ru, 35% (18 requests) were made to Reg.ru and 12% (6 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (19.8 sec) relates to the external source Vk.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 486.5 kB (70%)

Content Size

694.4 kB

After Optimization

207.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Topcen.ru main page is 694.4 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. 20% of websites need less resources to load. CSS take 514.6 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 84.2 kB

  • Original 104.3 kB
  • After minification 89.1 kB
  • After compression 20.2 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 15.2 kB, which is 15% 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 84.2 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 2.9 kB
  • After minification 2.9 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. Topcen images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 7.4 kB

  • Original 72.6 kB
  • After minification 72.6 kB
  • After compression 65.3 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

-77%

Potential reduce by 395.0 kB

  • Original 514.6 kB
  • After minification 514.5 kB
  • After compression 119.6 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. Topcen.ru needs all CSS files to be minified and compressed as it can save up to 395.0 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (68%)

Requests Now

38

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Topcen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

topcen.ru

topcen.ru

8054 ms

topcen.ru

topcen.ru

951 ms

all-styles.~E91185.css

all-styles.~E91185.css

1076 ms

domain-shop-lot.~8D7636.css

domain-shop-lot.~8D7636.css

527 ms

shop-widget.~BC12B1.css

shop-widget.~BC12B1.css

454 ms

modernizr.~47DAFF.js

modernizr.~47DAFF.js

454 ms

head-scripts.~336CED.js

head-scripts.~336CED.js

452 ms

jquery-1.8.3.min.js

jquery-1.8.3.min.js

586 ms

all.~68DBCF.js

all.~68DBCF.js

1326 ms

domain-shop-lot.~62898A.js

domain-shop-lot.~62898A.js

621 ms

shop-widget.~7390E9.js

shop-widget.~7390E9.js

490 ms

conversion.js

conversion.js

55 ms

j.php

j.php

188 ms

analytics.js

analytics.js

170 ms

b-notify-browser.~A443C8.png

b-notify-browser.~A443C8.png

156 ms

b-please-wait.~43237B.gif

b-please-wait.~43237B.gif

151 ms

b-header__logo_site_ru.svg

b-header__logo_site_ru.svg

185 ms

b-popup__close.~2194E0.png

b-popup__close.~2194E0.png

149 ms

regicons.~3ABD6E.woff

regicons.~3ABD6E.woff

141 ms

ec.js

ec.js

25 ms

v.gif

v.gif

17 ms

collect

collect

20 ms

collect

collect

254 ms

watch.js

watch.js

4 ms

fbevents.js

fbevents.js

334 ms

authorize_tabs.~BD152A.js

authorize_tabs.~BD152A.js

284 ms

129 ms

smartPixel.min.js

smartPixel.min.js

117 ms

code.js

code.js

721 ms

ping

ping

691 ms

lot_recommendations

lot_recommendations

216 ms

rtrg

rtrg

19802 ms

ga-audiences

ga-audiences

60 ms

b-dropdown.~4392E8.png

b-dropdown.~4392E8.png

166 ms

data

data

503 ms

35 ms

124 ms

pixel

pixel

92 ms

pixel

pixel

86 ms

google

google

442 ms

google

google

402 ms

counter

counter

164 ms

322 ms

builder.js

builder.js

132 ms

google

google

94 ms

renegade-smart

renegade-smart

135 ms

observer.html

observer.html

566 ms

libs.acf7e202.js

libs.acf7e202.js

2273 ms

collect

collect

3 ms

collect

collect

53 ms

tracker

tracker

199 ms

collect

collect

87 ms

Accessibility Review

topcen.ru accessibility score

65

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

topcen.ru best practices score

75

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

topcen.ru SEO score

91

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

    N/A

  • Encoding

    WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Topcen.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 Topcen.ru main page’s claimed encoding is windows-1251. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

topcen.ru

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