Tools & Wizards About Us
cet.rs screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

cet.rs

Početna - CET - Obrazovni centar || Beograd, Srbija

Page Load Speed

4.8 sec in total

First Response

625 ms

Resources Loaded

3.8 sec

Page Rendered

391 ms

cet.rs screenshot

About Website

Welcome to cet.rs homepage info - get ready to check CET best content for Serbia right away, or after learning these important things about cet.rs

Visit cet.rs

Key Findings

We analyzed Cet.rs page load time and found that the first response time was 625 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

cet.rs performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value15.7 s

0/100

25%

SI (Speed Index)

Value14.8 s

1/100

10%

TBT (Total Blocking Time)

Value670 ms

44/100

30%

CLS (Cumulative Layout Shift)

Value0.122

84/100

15%

TTI (Time to Interactive)

Value15.3 s

7/100

10%

Network Requests Diagram

cet.rs

625 ms

style.min.css

240 ms

wc-blocks-vendors-style.css

360 ms

wc-blocks-style.css

487 ms

styles.css

360 ms

Our browser made a total of 97 requests to load all elements on the main page. We found that 96% of them (93 requests) were addressed to the original Cet.rs, 2% (2 requests) were made to Googletagmanager.com and 1% (1 request) were made to Educationwp.thimpress.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Cet.rs.

Page Optimization Overview & Recommendations

Page size can be reduced by 169.7 kB (16%)

Content Size

1.1 MB

After Optimization

924.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cet.rs main page is 1.1 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. 70% of websites need less resources to load. Javascripts take 390.4 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 124.3 kB

  • Original 145.0 kB
  • After minification 142.5 kB
  • After compression 20.7 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 124.3 kB or 86% of the original size.

Image Optimization

-8%

Potential reduce by 17.3 kB

  • Original 204.1 kB
  • After minification 186.8 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. CET images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 21.1 kB

  • Original 390.4 kB
  • After minification 390.4 kB
  • After compression 369.3 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

-2%

Potential reduce by 7.1 kB

  • Original 355.2 kB
  • After minification 355.2 kB
  • After compression 348.2 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. Cet.rs has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 67 (88%)

Requests Now

76

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CET. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 38 to 1 for JavaScripts and from 31 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cet.rs

cet.rs

625 ms

style.min.css

style.min.css

240 ms

wc-blocks-vendors-style.css

wc-blocks-vendors-style.css

360 ms

wc-blocks-style.css

wc-blocks-style.css

487 ms

styles.css

styles.css

360 ms

popupaoc-public-style.css

popupaoc-public-style.css

365 ms

rs6.css

rs6.css

368 ms

css.css

css.css

366 ms

css.css

css.css

478 ms

css.min.css

css.min.css

480 ms

mediaelementplayer-legacy.min.css

mediaelementplayer-legacy.min.css

491 ms

wp-mediaelement.min.css

wp-mediaelement.min.css

492 ms

wpmenucart-icons.css

wpmenucart-icons.css

493 ms

wpmenucart-main.css

wpmenucart-main.css

595 ms

woocommerce-layout.css

woocommerce-layout.css

598 ms

woocommerce.css

woocommerce.css

600 ms

jquery.countdown.css

jquery.countdown.css

605 ms

owl.carousel.css

owl.carousel.css

606 ms

events.min.css

events.min.css

607 ms

tablepress-combined.min.css

tablepress-combined.min.css

713 ms

js_composer.min.css

js_composer.min.css

845 ms

main.css

main.css

718 ms

dashicons.min.css

dashicons.min.css

843 ms

style.css

style.css

1095 ms

all.min.css

all.min.css

726 ms

v4-shims.min.css

v4-shims.min.css

831 ms

ionicons.min.css

ionicons.min.css

837 ms

font-pe-icon-7.css

font-pe-icon-7.css

860 ms

flaticon.css

flaticon.css

950 ms

custom-vc.css

custom-vc.css

957 ms

style.css

style.css

963 ms

eduma.1639663978.css

eduma.1639663978.css

964 ms

bx1dk.js

bx1dk.js

1332 ms

bx1dk.js

bx1dk.js

1069 ms

bx1dk.js

bx1dk.js

1075 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

975 ms

wp-polyfill.min.js

wp-polyfill.min.js

975 ms

index.js

index.js

955 ms

js.js

js.js

844 ms

js.js

js.js

852 ms

js.min.js

js.min.js

848 ms

underscore.min.js

underscore.min.js

855 ms

wp-util.min.js

wp-util.min.js

945 ms

add-to-cart-variation.min.js

add-to-cart-variation.min.js

846 ms

mediaelement-and-player.min.js

mediaelement-and-player.min.js

903 ms

mediaelement-migrate.min.js

mediaelement-migrate.min.js

843 ms

wp-mediaelement.min.js

wp-mediaelement.min.js

895 ms

js.cookie.min.js

js.cookie.min.js

1016 ms

woocommerce.min.js

woocommerce.min.js

1017 ms

cart-fragments.min.js

cart-fragments.min.js

914 ms

core.min.js

core.min.js

909 ms

backbone.min.js

backbone.min.js

906 ms

jquery.plugin.min.js

jquery.plugin.min.js

903 ms

jquery.countdown.min.js

jquery.countdown.min.js

1036 ms

owl.carousel.min.js

owl.carousel.min.js

1034 ms

events.min.js

events.min.js

928 ms

main.js

main.js

922 ms

smush-lazy-load.min.js

smush-lazy-load.min.js

909 ms

main.min.js

main.min.js

807 ms

custom-script-v2.min.js

custom-script-v2.min.js

877 ms

thim-scripts.min.js

thim-scripts.min.js

873 ms

wp-embed.min.js

wp-embed.min.js

857 ms

js_composer_front.min.js

js_composer_front.min.js

855 ms

skrollr.min.js

skrollr.min.js

765 ms

jquery.waypoints.min.js

jquery.waypoints.min.js

758 ms

jquery.countTo.min.js

jquery.countTo.min.js

898 ms

jquery.magnific-popup.min.js

jquery.magnific-popup.min.js

890 ms

jquery.flexslider.min.js

jquery.flexslider.min.js

794 ms

gtm.js

gtm.js

156 ms

KFOmCnqEu92Fr1Mu4mxMKTU1Kg.woff

KFOmCnqEu92Fr1Mu4mxMKTU1Kg.woff

516 ms

KFOmCnqEu92Fr1Mu7GxMKTU1Kvnz.woff

KFOmCnqEu92Fr1Mu7GxMKTU1Kvnz.woff

516 ms

KFOmCnqEu92Fr1Mu7WxMKTU1Kvnz.woff

KFOmCnqEu92Fr1Mu7WxMKTU1Kvnz.woff

515 ms

KFOmCnqEu92Fr1Mu4WxMKTU1Kvnz.woff

KFOmCnqEu92Fr1Mu4WxMKTU1Kvnz.woff

577 ms

KFOmCnqEu92Fr1Mu7mxMKTU1Kvnz.woff

KFOmCnqEu92Fr1Mu7mxMKTU1Kvnz.woff

577 ms

KFOmCnqEu92Fr1Mu5mxMKTU1Kvnz.woff

KFOmCnqEu92Fr1Mu5mxMKTU1Kvnz.woff

577 ms

KFOmCnqEu92Fr1Mu72xMKTU1Kvnz.woff

KFOmCnqEu92Fr1Mu72xMKTU1Kvnz.woff

577 ms

bg-footer.jpg

bg-footer.jpg

140 ms

cet-kursevi-beograd-slider-1.jpg

cet-kursevi-beograd-slider-1.jpg

723 ms

bg_icon.png

bg_icon.png

456 ms

WPMenuCart.woff

WPMenuCart.woff

572 ms

fa-brands-400.woff

fa-brands-400.woff

810 ms

fa-solid-900.woff

fa-solid-900.woff

648 ms

fa-regular-400.woff

fa-regular-400.woff

719 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4Omb2RlV9Su1fah.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4Omb2RlV9Su1fah.woff

646 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmYWRlV9Su1fahTVo.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmYWRlV9Su1fahTVo.woff

719 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmYGRlV9Su1fahTVo.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmYGRlV9Su1fahTVo.woff

719 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmbGRlV9Su1fahTVo.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmbGRlV9Su1fahTVo.woff

720 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmY2RlV9Su1fahTVo.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmY2RlV9Su1fahTVo.woff

809 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4Oma2RlV9Su1fahTVo.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4Oma2RlV9Su1fahTVo.woff

845 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmYmRlV9Su1fahTVo.woff

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmYmRlV9Su1fahTVo.woff

845 ms

bg-footer.jpg

bg-footer.jpg

221 ms

js

js

65 ms

logo-trans.png

logo-trans.png

590 ms

logo-cet-crn.png

logo-cet-crn.png

590 ms

kursevi-W.png

kursevi-W.png

671 ms

softver-W.png

softver-W.png

672 ms

knjige-W.png

knjige-W.png

675 ms

Accessibility Review

cet.rs accessibility score

93

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

cet.rs best practices score

67

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

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

cet.rs 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

    SR

  • Language Claimed

    SR

  • Encoding

    UTF-8

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

cet.rs

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