Tools & Wizards About Us
polycent.ru screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 87

    SEO

    Google-friendlier than
    66% of websites

polycent.ru

Детский образовательный центр: Технические кружки, IT курсы для курсы для детей ☰ Polycent

Page Load Speed

8.2 sec in total

First Response

573 ms

Resources Loaded

5.7 sec

Page Rendered

2 sec

polycent.ru screenshot

About Website

Visit polycent.ru now to see the best up-to-date Polycent content for Russia and also check out these interesting facts you probably never knew about polycent.ru

Развивающие курсы для детей по программированию, информатике, робототехнике, инженерному делу, кружки для дошкольников в Polycent ➤ Увлекательное обучение! Оставьте заявку на индивидуальный подбор кур...

Visit polycent.ru

Key Findings

We analyzed Polycent.ru page load time and found that the first response time was 573 ms and then it took 7.7 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

polycent.ru performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value25.8 s

0/100

25%

SI (Speed Index)

Value33.1 s

0/100

10%

TBT (Total Blocking Time)

Value43,680 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value56.5 s

0/100

10%

Network Requests Diagram

polycent.ru

573 ms

polycent.ru

746 ms

gtm.js

754 ms

common.css

321 ms

bootstrap-select.min.css

989 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 36% of them (25 requests) were addressed to the original Polycent.ru, 12% (8 requests) were made to Google.com and 9% (6 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Polycent.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 71.3 kB (9%)

Content Size

785.1 kB

After Optimization

713.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Polycent.ru main page is 785.1 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. 75% 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 529.6 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 52.4 kB

  • Original 66.2 kB
  • After minification 55.6 kB
  • After compression 13.7 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. This page needs HTML code to be minified as it can gain 10.6 kB, which is 16% 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 52.4 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 529.6 kB
  • After minification 529.6 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. Polycent images are well optimized though.

JavaScript Optimization

-12%

Potential reduce by 17.5 kB

  • Original 147.6 kB
  • After minification 142.9 kB
  • After compression 130.1 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 17.5 kB or 12% of the original size.

CSS Optimization

-3%

Potential reduce by 1.4 kB

  • Original 41.7 kB
  • After minification 41.5 kB
  • After compression 40.2 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. Polycent.ru has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 44 (71%)

Requests Now

62

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Polycent. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

polycent.ru

polycent.ru

573 ms

polycent.ru

polycent.ru

746 ms

gtm.js

gtm.js

754 ms

common.css

common.css

321 ms

bootstrap-select.min.css

bootstrap-select.min.css

989 ms

plyr.css

plyr.css

722 ms

big.table.css

big.table.css

720 ms

api.js

api.js

1024 ms

default.css

default.css

1098 ms

default.css

default.css

1217 ms

api.js

api.js

1109 ms

lazyload.min.js

lazyload.min.js

1110 ms

jquery-3.2.1.min.js

jquery-3.2.1.min.js

831 ms

popper.min.js

popper.min.js

737 ms

bootstrap.min.js

bootstrap.min.js

1009 ms

bootstrap-select.min.js

bootstrap-select.min.js

934 ms

defaults-ru_RU.min.js

defaults-ru_RU.min.js

1041 ms

device.min.js

device.min.js

996 ms

slick.min.js

slick.min.js

1043 ms

plyr.js

plyr.js

929 ms

js

js

1068 ms

gmaps.js

gmaps.js

1425 ms

map.js

map.js

1193 ms

timer.js

timer.js

1188 ms

checkDevice.js

checkDevice.js

1187 ms

jquery.validate.min.js

jquery.validate.min.js

946 ms

app.js

app.js

1448 ms

common.js

common.js

1429 ms

jquery.cookie.min.js

jquery.cookie.min.js

1418 ms

init.js

init.js

1425 ms

js

js

1025 ms

js

js

1051 ms

metrikagoals.js

metrikagoals.js

1422 ms

default.js

default.js

1441 ms

callback.js

callback.js

1674 ms

recaptcha__en.js

recaptcha__en.js

423 ms

fbevents.js

fbevents.js

238 ms

jquery.jgrowl.min.css

jquery.jgrowl.min.css

633 ms

2452790234950509

2452790234950509

285 ms

jquery.jgrowl.min.css

jquery.jgrowl.min.css

146 ms

banner01.jpg

banner01.jpg

658 ms

banner03.jpg

banner03.jpg

946 ms

logo_white.svg

logo_white.svg

174 ms

tag.js

tag.js

1067 ms

icomoon.ttf

icomoon.ttf

438 ms

gen_204

gen_204

125 ms

js

js

114 ms

js

js

112 ms

anchor

anchor

283 ms

anchor

anchor

272 ms

jquery.jgrowl.min.js

jquery.jgrowl.min.js

491 ms

analytics.js

analytics.js

78 ms

styles__ltr.css

styles__ltr.css

38 ms

recaptcha__en.js

recaptcha__en.js

44 ms

webworker.js

webworker.js

174 ms

logo_48.png

logo_48.png

83 ms

collect

collect

153 ms

collect

collect

148 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

213 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

214 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

215 ms

recaptcha__en.js

recaptcha__en.js

100 ms

collect

collect

197 ms

collect

collect

356 ms

ga-audiences

ga-audiences

161 ms

ga-audiences

ga-audiences

34 ms

reload

reload

68 ms

advert.gif

advert.gif

354 ms

sync_cookie_image_decide

sync_cookie_image_decide

132 ms

Accessibility Review

polycent.ru accessibility score

96

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.

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

Links do not have a discernible name

Best Practices

polycent.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

polycent.ru SEO score

87

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

    RU

  • Encoding

    UTF-8

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

polycent.ru

Open Graph data is detected on the main page of Polycent. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: