Tools & Wizards About Us
ireferaty.cz screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

ireferaty.cz

▷ Referáty, Čtenářský deník a Životopisy

Page Load Speed

22 sec in total

First Response

347 ms

Resources Loaded

21.3 sec

Page Rendered

289 ms

ireferaty.cz screenshot

About Website

Visit ireferaty.cz now to see the best up-to-date Ireferaty content for Czech Republic and also check out these interesting facts you probably never knew about ireferaty.cz

Referáty, čtenářský deník, povinná četba a další referáty.

Visit ireferaty.cz

Key Findings

We analyzed Ireferaty.cz page load time and found that the first response time was 347 ms and then it took 21.6 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number 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

ireferaty.cz performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value27.6 s

0/100

10%

TBT (Total Blocking Time)

Value9,360 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.05

99/100

15%

TTI (Time to Interactive)

Value43.7 s

0/100

10%

Network Requests Diagram

ireferaty.cz

347 ms

ireferaty.cz

838 ms

lux.js

83 ms

1663.js

84 ms

caroda.min.js

561 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 38% of them (22 requests) were addressed to the original Ireferaty.cz, 16% (9 requests) were made to Static.xx.fbcdn.net and 7% (4 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (19.7 sec) relates to the external source Toplist.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 155.7 kB (28%)

Content Size

561.9 kB

After Optimization

406.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ireferaty.cz main page is 561.9 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. 65% of websites need less resources to load. Javascripts take 348.9 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 147.0 kB

  • Original 202.9 kB
  • After minification 193.6 kB
  • After compression 55.9 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 147.0 kB or 72% of the original size.

Image Optimization

-4%

Potential reduce by 178 B

  • Original 4.3 kB
  • After minification 4.1 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. Ireferaty images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 8.4 kB

  • Original 348.9 kB
  • After minification 348.5 kB
  • After compression 340.6 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 87 B

  • Original 5.7 kB
  • After minification 5.7 kB
  • After compression 5.6 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. Ireferaty.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 41 (76%)

Requests Now

54

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ireferaty. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

ireferaty.cz

ireferaty.cz

347 ms

ireferaty.cz

ireferaty.cz

838 ms

lux.js

lux.js

83 ms

1663.js

1663.js

84 ms

caroda.min.js

caroda.min.js

561 ms

gtm.js

gtm.js

90 ms

gtm.js

gtm.js

140 ms

adsbygoogle.js

adsbygoogle.js

140 ms

css_redesign08.min.css

css_redesign08.min.css

386 ms

launch-facbe9b48c75.min.js

launch-facbe9b48c75.min.js

55 ms

actb.js

actb.js

397 ms

search_suggestions.php

search_suggestions.php

745 ms

logo.png

logo.png

400 ms

tag.js

tag.js

59 ms

obr_hled.gif

obr_hled.gif

394 ms

ico-ctenarsky-denik.gif

ico-ctenarsky-denik.gif

418 ms

ico-zivotopisy.gif

ico-zivotopisy.gif

418 ms

ico-obecne-referaty.gif

ico-obecne-referaty.gif

425 ms

js

js

86 ms

js

js

162 ms

xgemius.js

xgemius.js

652 ms

adBlockControl.min.js

adBlockControl.min.js

589 ms

adsbygoogle.js

adsbygoogle.js

152 ms

cpex-cmp.min.js

cpex-cmp.min.js

209 ms

ico-lide.gif

ico-lide.gif

371 ms

obr_sipka.gif

obr_sipka.gif

418 ms

obr_hvezdy_0.gif

obr_hvezdy_0.gif

466 ms

show_ads_impl.js

show_ads_impl.js

239 ms

obr_hvezdy_2.gif

obr_hvezdy_2.gif

389 ms

obr_hvezdy_5.gif

obr_hvezdy_5.gif

395 ms

obr_hvezdy_4.gif

obr_hvezdy_4.gif

399 ms

obr_hvezdy_3.gif

obr_hvezdy_3.gif

447 ms

zrt_lookup.html

zrt_lookup.html

27 ms

ads

ads

28 ms

likebox.php

likebox.php

98 ms

obr_hledej_nahore.gif

obr_hledej_nahore.gif

114 ms

obr_hlav_pruh.gif

obr_hlav_pruh.gif

113 ms

obr_tlacitko2.gif

obr_tlacitko2.gif

114 ms

obr_box_pravy_sl.gif

obr_box_pravy_sl.gif

114 ms

dot.asp

dot.asp

19724 ms

fpdata.js

fpdata.js

95 ms

lsget.html

lsget.html

561 ms

ireferatycz-pc7.js

ireferatycz-pc7.js

14 ms

impublishertag.repeater.log.js

impublishertag.repeater.log.js

46 ms

njk3nZW1bqc.css

njk3nZW1bqc.css

31 ms

fwJTNXSLwj7.js

fwJTNXSLwj7.js

39 ms

xjg1QNQguf-.js

xjg1QNQguf-.js

74 ms

eQ3e44cCeXh.js

eQ3e44cCeXh.js

77 ms

qnn7MVQZYOT.js

qnn7MVQZYOT.js

80 ms

qwSlV7K_jlE.js

qwSlV7K_jlE.js

82 ms

zYzGplAqD4J.js

zYzGplAqD4J.js

76 ms

p55HfXW__mM.js

p55HfXW__mM.js

80 ms

pixel.gif

pixel.gif

27 ms

pixel.gif

pixel.gif

69 ms

redesign06_tisk.css

redesign06_tisk.css

116 ms

300196816_473278528142383_2052002249759192467_n.jpg

300196816_473278528142383_2052002249759192467_n.jpg

27 ms

UXtr_j2Fwe-.png

UXtr_j2Fwe-.png

5 ms

rexdot.js

rexdot.js

94 ms

Accessibility Review

ireferaty.cz accessibility score

57

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

ireferaty.cz best practices score

50

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

ireferaty.cz SEO score

81

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    ISO-8859-2

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ireferaty.cz 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 Ireferaty.cz main page’s claimed encoding is iso-8859-2. 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

ireferaty.cz

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