Tools & Wizards About Us
eslevy.cz screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

eslevy.cz

eSlevy.cz | říjen 2023 | Slevy, slevové kupóny a kódy

Page Load Speed

7.5 sec in total

First Response

406 ms

Resources Loaded

6.5 sec

Page Rendered

648 ms

eslevy.cz screenshot

About Website

Click here to check amazing ESlevy content for Czech Republic. Otherwise, check out these important facts you probably never knew about eslevy.cz

Aktuální slevové kupóny a slevové kódy do internetových i kamenných obchodů. Široká nabídka slev a kupónů pro všechny oblíbené obchody. Šetřete každým nákupem a neplaťte víc než musíte.

Visit eslevy.cz

Key Findings

We analyzed Eslevy.cz page load time and found that the first response time was 406 ms and then it took 7.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

eslevy.cz performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

14/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

25/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value5,230 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value16.2 s

6/100

10%

Network Requests Diagram

eslevy.cz

406 ms

eslevy.cz

436 ms

www.eslevy.cz

486 ms

www.eslevy.cz

972 ms

5004551350.js

129 ms

Our browser made a total of 104 requests to load all elements on the main page. We found that 34% of them (35 requests) were addressed to the original Eslevy.cz, 10% (10 requests) were made to Static.xx.fbcdn.net and 10% (10 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Eslevy.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (58%)

Content Size

2.1 MB

After Optimization

896.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Eslevy.cz main page is 2.1 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. 65% of websites need less resources to load. Javascripts take 932.3 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 89.5 kB

  • Original 104.2 kB
  • After minification 84.4 kB
  • After compression 14.7 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 19.8 kB, which is 19% 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 89.5 kB or 86% of the original size.

Image Optimization

-1%

Potential reduce by 4.7 kB

  • Original 425.7 kB
  • After minification 421.0 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. ESlevy images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 628.8 kB

  • Original 932.3 kB
  • After minification 932.0 kB
  • After compression 303.5 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 628.8 kB or 67% of the original size.

CSS Optimization

-76%

Potential reduce by 503.9 kB

  • Original 661.3 kB
  • After minification 660.5 kB
  • After compression 157.4 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. Eslevy.cz needs all CSS files to be minified and compressed as it can save up to 503.9 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (49%)

Requests Now

86

After Optimization

44

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 86 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ESlevy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

eslevy.cz

eslevy.cz

406 ms

eslevy.cz

eslevy.cz

436 ms

www.eslevy.cz

www.eslevy.cz

486 ms

www.eslevy.cz

www.eslevy.cz

972 ms

5004551350.js

5004551350.js

129 ms

webStyles.css

webStyles.css

730 ms

adsbygoogle.js

adsbygoogle.js

31 ms

router.js

router.js

309 ms

routing

routing

319 ms

webScripts.js

webScripts.js

726 ms

gtm.js

gtm.js

58 ms

analytics.js

analytics.js

30 ms

conversion_async.js

conversion_async.js

42 ms

collect

collect

4 ms

collect

collect

59 ms

70 ms

ga-audiences

ga-audiences

36 ms

31 ms

collect

collect

48 ms

webfont.js

webfont.js

141 ms

logo-150-50.png

logo-150-50.png

447 ms

kasa_banner.png

kasa_banner.png

474 ms

zoot_banner.png

zoot_banner.png

1028 ms

bata_banner.png

bata_banner.png

1028 ms

kasa.png

kasa.png

447 ms

alza.png

alza.png

446 ms

pilulka.png

pilulka.png

1318 ms

zoot.png

zoot.png

1318 ms

tchibo.png

tchibo.png

1317 ms

footshop.png

footshop.png

1605 ms

answear.png

answear.png

1718 ms

bibloo.png

bibloo.png

1717 ms

deichmann.png

deichmann.png

1817 ms

euronics-logo.jpg

euronics-logo.jpg

1826 ms

bata.png

bata.png

1825 ms

mt-nabytek-cz.jpg

mt-nabytek-cz.jpg

1935 ms

svet-piva-cz.png

svet-piva-cz.png

2113 ms

kasa.png

kasa.png

2124 ms

alza.png

alza.png

2136 ms

pilulka.png

pilulka.png

2218 ms

bibloo.png

bibloo.png

2228 ms

vasecocky.jpeg

vasecocky.jpeg

2330 ms

euronics-logo.jpg

euronics-logo.jpg

2346 ms

sdk.js

sdk.js

266 ms

retargeting.js

retargeting.js

1179 ms

fbevents.js

fbevents.js

294 ms

hotjar-138135.js

hotjar-138135.js

307 ms

css

css

155 ms

ca-pub-6053482130442119.js

ca-pub-6053482130442119.js

58 ms

zrt_lookup.html

zrt_lookup.html

30 ms

show_ads_impl.js

show_ads_impl.js

674 ms

878 ms

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u-WUoqrET9fUeobQW7jkRSZ2oysoEQEeKwjgmXLRnTc.ttf

589 ms

DXI1ORHCpsQm3Vp6mXoaTY3LH2FgLjViKkqswU-xtII.ttf

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724 ms

MTP_ySUJH_bn48VBG8sNSo3LH2FgLjViKkqswU-xtII.ttf

MTP_ySUJH_bn48VBG8sNSo3LH2FgLjViKkqswU-xtII.ttf

885 ms

k3k702ZOKiLJc3WVjuplzI3LH2FgLjViKkqswU-xtII.ttf

k3k702ZOKiLJc3WVjuplzI3LH2FgLjViKkqswU-xtII.ttf

945 ms

PRmiXeptR36kaC0GEAetxub4m3zD5DWwcrpmXcA84Oc.ttf

PRmiXeptR36kaC0GEAetxub4m3zD5DWwcrpmXcA84Oc.ttf

885 ms

PRmiXeptR36kaC0GEAetxr7nyIQarwPho2ll3DE8w6k.ttf

PRmiXeptR36kaC0GEAetxr7nyIQarwPho2ll3DE8w6k.ttf

885 ms

xjAJXh38I15wypJXxuGMBgzzZlagSe_blz3aczwf9QY.ttf

xjAJXh38I15wypJXxuGMBgzzZlagSe_blz3aczwf9QY.ttf

884 ms

PRmiXeptR36kaC0GEAetxo-ObED0kqzHZpR7AUXSC4U.ttf

PRmiXeptR36kaC0GEAetxo-ObED0kqzHZpR7AUXSC4U.ttf

884 ms

zhcz-_WihjSQC0oHJ9TCYMDdSZkkecOE1hvV7ZHvhyU.ttf

zhcz-_WihjSQC0oHJ9TCYMDdSZkkecOE1hvV7ZHvhyU.ttf

1077 ms

IQHow_FEYlDC4Gzy_m8fcsBaWKZ57bY3RXgXH6dOjZ0.ttf

IQHow_FEYlDC4Gzy_m8fcsBaWKZ57bY3RXgXH6dOjZ0.ttf

1022 ms

xd_arbiter.php

xd_arbiter.php

1169 ms

modules-043c1e6abe660c48857202e419ff9d8a.js

modules-043c1e6abe660c48857202e419ff9d8a.js

1149 ms

858 ms

arrow-left.png

arrow-left.png

1434 ms

arrow-right.png

arrow-right.png

1441 ms

page.php

page.php

592 ms

ads

ads

552 ms

osd.js

osd.js

149 ms

ads

ads

494 ms

retargeting

retargeting

297 ms

ebiMDO3r-8l.css

ebiMDO3r-8l.css

215 ms

jGc-59L_9lo.css

jGc-59L_9lo.css

228 ms

q68gy-v_YMF.js

q68gy-v_YMF.js

345 ms

hHAUS9q05ns.js

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424 ms

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368 ms

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1bNoFZUdlYZ.js

368 ms

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45 ms

abg.js

abg.js

47 ms

m_js_controller.js

m_js_controller.js

63 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

101 ms

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15740599268828368940

35 ms

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45 ms

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41 ms

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4 ms

visit-data

visit-data

205 ms

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99 ms

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107 ms

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108 ms

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110 ms

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108 ms

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112 ms

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110 ms

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108 ms

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112 ms

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110 ms

I6-MnjEovm5.js

I6-MnjEovm5.js

42 ms

pQrUxxo5oQp.js

pQrUxxo5oQp.js

81 ms

webIcons.css

webIcons.css

227 ms

nr-892.min.js

nr-892.min.js

196 ms

ui

ui

15 ms

d9ee23d59d0e0e727b51368b458a0bff.woff

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310 ms

30674b2cb4

30674b2cb4

98 ms

Accessibility Review

eslevy.cz accessibility score

87

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

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

eslevy.cz 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

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

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

eslevy.cz SEO score

99

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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

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

eslevy.cz

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