Tools & Wizards About Us
zcdn.edu.pl screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

zcdn.edu.pl

Strona główna | ZCDN

Page Load Speed

5.4 sec in total

First Response

741 ms

Resources Loaded

4.3 sec

Page Rendered

407 ms

zcdn.edu.pl screenshot

About Website

Welcome to zcdn.edu.pl homepage info - get ready to check ZCDN best content for Poland right away, or after learning these important things about zcdn.edu.pl

Visit zcdn.edu.pl

Key Findings

We analyzed Zcdn.edu.pl page load time and found that the first response time was 741 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

zcdn.edu.pl performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value21.2 s

0/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value310 ms

77/100

30%

CLS (Cumulative Layout Shift)

Value0.093

91/100

15%

TTI (Time to Interactive)

Value14.4 s

9/100

10%

Network Requests Diagram

zcdn.edu.pl

741 ms

style.min.css

200 ms

dashicons.min.css

353 ms

front.min.css

347 ms

main.css

376 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 73% of them (47 requests) were addressed to the original Zcdn.edu.pl, 11% (7 requests) were made to Fonts.gstatic.com and 8% (5 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Zcdn.edu.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 502.9 kB (15%)

Content Size

3.4 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zcdn.edu.pl main page is 3.4 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. 65% of websites need less resources to load. Images take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 65.7 kB

  • Original 81.0 kB
  • After minification 75.1 kB
  • After compression 15.3 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 65.7 kB or 81% of the original size.

Image Optimization

-12%

Potential reduce by 380.4 kB

  • Original 3.1 MB
  • After minification 2.7 MB

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. Obviously, ZCDN needs image optimization as it can save up to 380.4 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-24%

Potential reduce by 31.4 kB

  • Original 128.5 kB
  • After minification 127.3 kB
  • After compression 97.1 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 31.4 kB or 24% of the original size.

CSS Optimization

-18%

Potential reduce by 25.4 kB

  • Original 143.1 kB
  • After minification 142.7 kB
  • After compression 117.8 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. Zcdn.edu.pl needs all CSS files to be minified and compressed as it can save up to 25.4 kB or 18% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (69%)

Requests Now

51

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZCDN. 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 17 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zcdn.edu.pl

zcdn.edu.pl

741 ms

style.min.css

style.min.css

200 ms

dashicons.min.css

dashicons.min.css

353 ms

front.min.css

front.min.css

347 ms

main.css

main.css

376 ms

style.css

style.css

372 ms

style.css

style.css

372 ms

animate.css

animate.css

368 ms

pe-recent-posts.css

pe-recent-posts.css

510 ms

normalize.min.css

normalize.min.css

515 ms

all.css

all.css

520 ms

v4-shims.css

v4-shims.css

529 ms

theme.css

theme.css

523 ms

high-contrast.css

high-contrast.css

645 ms

jquery.min.js

jquery.min.js

784 ms

jquery-migrate.min.js

jquery-migrate.min.js

659 ms

bootstrap.min.js

bootstrap.min.js

679 ms

custom.js

custom.js

662 ms

css

css

36 ms

js

js

67 ms

css2

css2

26 ms

separate-accordion.js

separate-accordion.js

650 ms

group-accordion.js

group-accordion.js

904 ms

front.min.js

front.min.js

902 ms

frontend.min.js

frontend.min.js

902 ms

map.js

map.js

903 ms

slick.min.js

slick.min.js

903 ms

jquery.validate.min.js

jquery.validate.min.js

969 ms

jquery.waypoints.min.js

jquery.waypoints.min.js

970 ms

jquery.magnific-popup.min.js

jquery.magnific-popup.min.js

970 ms

jquery.form.js

jquery.form.js

970 ms

js.cookie.js

js.cookie.js

970 ms

wcag.js

wcag.js

970 ms

theme.js

theme.js

1088 ms

slick-theme.min.css

slick-theme.min.css

38 ms

slick.min.css

slick.min.css

50 ms

slick.min.js

slick.min.js

57 ms

gtm.js

gtm.js

123 ms

herb_jednostka_oswiatowa.png

herb_jednostka_oswiatowa.png

285 ms

ZCDN_Logo_Granat.png

ZCDN_Logo_Granat.png

438 ms

Szkolne-emancypacje-002.png

Szkolne-emancypacje-002.png

2175 ms

baner_czerwcowe_-wydarzenia.jpg

baner_czerwcowe_-wydarzenia.jpg

2297 ms

NN_MB_D.jpg

NN_MB_D.jpg

515 ms

Wspomaganie-szkol-i-placowek-oswiatowych.png

Wspomaganie-szkol-i-placowek-oswiatowych.png

687 ms

blog-na-zmiane-w.2-2480-x-520-px.png

blog-na-zmiane-w.2-2480-x-520-px.png

1822 ms

zachodniopomorskie.png

zachodniopomorskie.png

535 ms

01_znak_siatka_podstawowy_kolor_biale_tlo-1.png

01_znak_siatka_podstawowy_kolor_biale_tlo-1.png

795 ms

kuratorium-szczecin.png

kuratorium-szczecin.png

678 ms

ore.png

ore.png

836 ms

strona-fundusze-ue.jpg

strona-fundusze-ue.jpg

834 ms

zcdn.png

zcdn.png

921 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4n.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4n.ttf

94 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4uaVc.ttf

94 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjr0C4n.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjr0C4n.ttf

163 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0C4n.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0C4n.ttf

164 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1y4n.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1y4n.ttf

214 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1y4n.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1y4n.ttf

215 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1y4n.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1y4n.ttf

214 ms

fa-regular-400.woff

fa-regular-400.woff

827 ms

fa-solid-900.woff

fa-solid-900.woff

978 ms

fa-brands-400.woff

fa-brands-400.woff

1024 ms

wARDj0u

wARDj0u

25 ms

ajax-loader.gif

ajax-loader.gif

29 ms

slick.woff

slick.woff

19 ms

Accessibility Review

zcdn.edu.pl accessibility score

98

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

Links do not have a discernible name

Best Practices

zcdn.edu.pl best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

zcdn.edu.pl SEO score

91

Search Engine Optimization Advices

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

    PL

  • Language Claimed

    PL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zcdn.edu.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Zcdn.edu.pl 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

zcdn.edu.pl

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