Tools & Wizards About Us
izun.eu screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

izun.eu

iZUN.eu Univerzitní noviny ČZU | Dojíme pro Vás informace

Page Load Speed

4.7 sec in total

First Response

28 ms

Resources Loaded

4.3 sec

Page Rendered

371 ms

izun.eu screenshot

About Website

Click here to check amazing IZUN content for Czech Republic. Otherwise, check out these important facts you probably never knew about izun.eu

Univerzitní noviny ČZU iZUN.eu jsou webovým projektem, který má za cíl informovat o nevšedním dění na ČZU, zajišťovat kulturní akce v areálu univerzity a bojovat za práva studentů.

Visit izun.eu

Key Findings

We analyzed Izun.eu page load time and found that the first response time was 28 ms and then it took 4.6 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

izun.eu performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

25/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value1,040 ms

26/100

30%

CLS (Cumulative Layout Shift)

Value0.602

10/100

15%

TTI (Time to Interactive)

Value12.5 s

14/100

10%

Network Requests Diagram

izun.eu

28 ms

izun.eu

559 ms

app.css

538 ms

js

95 ms

sweetAlert2.ieCompat.min.js

555 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 80% of them (40 requests) were addressed to the original Izun.eu, 16% (8 requests) were made to Cdnjs.cloudflare.com and 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Izun.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 888.0 kB (39%)

Content Size

2.3 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Izun.eu main page is 2.3 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. 40% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 35.7 kB

  • Original 49.2 kB
  • After minification 40.9 kB
  • After compression 13.5 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 8.2 kB, which is 17% 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 35.7 kB or 73% of the original size.

Image Optimization

-26%

Potential reduce by 435.3 kB

  • Original 1.7 MB
  • After minification 1.3 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, IZUN needs image optimization as it can save up to 435.3 kB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 108.6 kB

  • Original 155.9 kB
  • After minification 155.9 kB
  • After compression 47.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 108.6 kB or 70% of the original size.

CSS Optimization

-86%

Potential reduce by 308.4 kB

  • Original 356.8 kB
  • After minification 295.6 kB
  • After compression 48.3 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. Izun.eu needs all CSS files to be minified and compressed as it can save up to 308.4 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (31%)

Requests Now

45

After Optimization

31

  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IZUN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

izun.eu

izun.eu

28 ms

izun.eu

izun.eu

559 ms

app.css

app.css

538 ms

js

js

95 ms

sweetAlert2.ieCompat.min.js

sweetAlert2.ieCompat.min.js

555 ms

js.cookie.min.js

js.cookie.min.js

35 ms

jquery.min.js

jquery.min.js

48 ms

bootstrap.min.js

bootstrap.min.js

50 ms

add-to-calendar.min.js

add-to-calendar.min.js

511 ms

modernizr.min.js

modernizr.min.js

49 ms

froala_editor.pkgd.min.js

froala_editor.pkgd.min.js

299 ms

cs.js

cs.js

51 ms

cropper.min.js

cropper.min.js

50 ms

dropzone.min.js

dropzone.min.js

65 ms

lightbox.min.js

lightbox.min.js

509 ms

jquery-cropper.min.js

jquery-cropper.min.js

553 ms

jquery.sticky-sidebar.min.js

jquery.sticky-sidebar.min.js

508 ms

core.js

core.js

998 ms

css

css

37 ms

logo.svg

logo.svg

534 ms

logo_small.svg

logo_small.svg

532 ms

celsium.png

celsium.png

590 ms

0f3749d0e1f5ab031b26cbf6f1da0e29c7b37f2c.l.jpg

0f3749d0e1f5ab031b26cbf6f1da0e29c7b37f2c.l.jpg

588 ms

de856950f86aee3b831abd76f5a7fc9510c1dbf4.m.jpg

de856950f86aee3b831abd76f5a7fc9510c1dbf4.m.jpg

514 ms

592d48eb93abfed7c7dafba8f97a63ad16e74fb5.m.jpg

592d48eb93abfed7c7dafba8f97a63ad16e74fb5.m.jpg

1188 ms

37f041e7223fc787a65978cbeaf6b1d78159f2d4.m.png

37f041e7223fc787a65978cbeaf6b1d78159f2d4.m.png

1199 ms

a14291a05381b613060ea4dcf854ee4dc1616c3c.m.jpg

a14291a05381b613060ea4dcf854ee4dc1616c3c.m.jpg

1062 ms

24fb825c73bc10af3481d4638e6a5eb9543b7559.m.jpg

24fb825c73bc10af3481d4638e6a5eb9543b7559.m.jpg

1064 ms

9701002a7bcb95a8f694b0133ec9d18adf22a5dd.m.jpg

9701002a7bcb95a8f694b0133ec9d18adf22a5dd.m.jpg

1266 ms

clocks.png

clocks.png

1173 ms

hand.png

hand.png

1594 ms

director.png

director.png

1617 ms

czulogo.png

czulogo.png

1755 ms

metro.png

metro.png

1772 ms

352b936ad6edfc4f3663acf232506b19d2c61d41s.JPG

352b936ad6edfc4f3663acf232506b19d2c61d41s.JPG

1782 ms

b61a867df314ddef0132afb7f5d2f2d0f26037ecs.JPG

b61a867df314ddef0132afb7f5d2f2d0f26037ecs.JPG

1849 ms

61c842c3d5a5895741fa30bb940df2555b5af33bs.jpg

61c842c3d5a5895741fa30bb940df2555b5af33bs.jpg

2180 ms

88877ee4175b4f109eb463f3648506e917b5d242s.JPG

88877ee4175b4f109eb463f3648506e917b5d242s.JPG

2204 ms

damezkousku.png

damezkousku.png

2152 ms

kpmg.png

kpmg.png

2169 ms

dilynatraktory.png

dilynatraktory.png

2194 ms

ckmundo.png

ckmundo.png

2244 ms

czu.png

czu.png

2548 ms

fappz.jpg

fappz.jpg

2565 ms

fld.jpg

fld.jpg

2715 ms

fzp.jpg

fzp.jpg

2692 ms

pef.jpg

pef.jpg

2767 ms

fa-solid-900.woff

fa-solid-900.woff

2761 ms

fa-regular-400.woff

fa-regular-400.woff

2988 ms

fa-brands-400.woff

fa-brands-400.woff

2786 ms

Accessibility Review

izun.eu accessibility score

86

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

izun.eu best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

izun.eu SEO score

90

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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

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

izun.eu

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