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dell.cz screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

dell.cz

Oficiální web Dell | Dell Česká republika

Page Load Speed

1.9 sec in total

First Response

160 ms

Resources Loaded

1.5 sec

Page Rendered

167 ms

dell.cz screenshot

About Website

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

Společnost Dell poskytuje technologická řešení, služby a podporu. Koupit notebooky, počítače s dotykovou obrazovkou, stolní počítače, servery, úložiště, monitory, herní vybavení a příslušenství

Visit dell.cz

Key Findings

We analyzed Dell.cz page load time and found that the first response time was 160 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

dell.cz performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value4.6 s

71/100

10%

TBT (Total Blocking Time)

Value3,360 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.177

68/100

15%

TTI (Time to Interactive)

Value13.2 s

12/100

10%

Network Requests Diagram

dell.cz

160 ms

css.aspx

124 ms

css.aspx

321 ms

Bootstrap.js

20 ms

tlinclude82a.js

72 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Dell.cz, 41% (16 requests) were made to I.dell.com and 13% (5 requests) were made to Scarf.ensighten.com. The less responsive or slowest element that took the longest time to load (956 ms) relates to the external source I.dell.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 829.8 kB (64%)

Content Size

1.3 MB

After Optimization

460.8 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Dell.cz main page is 1.3 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. 55% of websites need less resources to load. Javascripts take 991.7 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 73.7 kB

  • Original 87.4 kB
  • After minification 81.6 kB
  • After compression 13.7 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 73.7 kB or 84% of the original size.

Image Optimization

-16%

Potential reduce by 33.4 kB

  • Original 211.4 kB
  • After minification 178.1 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. Obviously, Dell needs image optimization as it can save up to 33.4 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-73%

Potential reduce by 722.8 kB

  • Original 991.7 kB
  • After minification 912.9 kB
  • After compression 269.0 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 722.8 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (66%)

Requests Now

38

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dell. 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 as a result speed up the page load time.

Network Requests Diagram

dell.cz

dell.cz

160 ms

css.aspx

css.aspx

124 ms

css.aspx

css.aspx

321 ms

Bootstrap.js

Bootstrap.js

20 ms

tlinclude82a.js

tlinclude82a.js

72 ms

jquery-1.2.2e.js

jquery-1.2.2e.js

77 ms

home87b.js

home87b.js

70 ms

menu.aspx

menu.aspx

182 ms

i.js

i.js

104 ms

spacer.gif

spacer.gif

75 ms

MasterTMS.min.js

MasterTMS.min.js

61 ms

logo-wt-bl.png

logo-wt-bl.png

60 ms

people_table_HomePage_ImageOnly_300x130.jpg

people_table_HomePage_ImageOnly_300x130.jpg

956 ms

300x130_dell_services_16734_en.jpg

300x130_dell_services_16734_en.jpg

58 ms

whats-new-my.jpg

whats-new-my.jpg

190 ms

serverComponent.php

serverComponent.php

56 ms

rd

rd

55 ms

tags

tags

16 ms

0e05ed6c72a4e8a85fbe2c8ade30e19b.js

0e05ed6c72a4e8a85fbe2c8ade30e19b.js

13 ms

js

js

32 ms

mh-icons-sprite-8b.png

mh-icons-sprite-8b.png

29 ms

secondarybk.gif

secondarybk.gif

32 ms

bg.jpg

bg.jpg

445 ms

7918f9e94de4bb036e0f6f34df309ed2.js

7918f9e94de4bb036e0f6f34df309ed2.js

28 ms

id

id

55 ms

cz.gif

cz.gif

55 ms

viewlarger.gif

viewlarger.gif

15 ms

id

id

40 ms

162260_slot1_window_10_cs.jpg

162260_slot1_window_10_cs.jpg

21 ms

js

js

19 ms

s66336320794653

s66336320794653

7 ms

go

go

20 ms

x

x

4 ms

x

x

5 ms

x

x

11 ms

x

x

9 ms

dest5.html

dest5.html

19 ms

tlFramePage.htm

tlFramePage.htm

17 ms

tlSubDomainSDK.js

tlSubDomainSDK.js

3 ms

Accessibility Review

dell.cz accessibility score

94

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.

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

dell.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

SEO Factors

dell.cz SEO score

69

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

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dell.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Dell.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

dell.cz

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