Tools & Wizards About Us
tesco.shopy.cz screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

tesco.shopy.cz

Tesco aktu?ln? let?k - Detail www.itesco.cz | Shopy.cz

Page Load Speed

22.6 sec in total

First Response

296 ms

Resources Loaded

21.8 sec

Page Rendered

522 ms

tesco.shopy.cz screenshot

About Website

Click here to check amazing Tesco Shopy content for Czech Republic. Otherwise, check out these important facts you probably never knew about tesco.shopy.cz

TESCO - aktu?ln? let?k na tento t?den - Ak?n? ceny, ak?n? let?ky, ak?n? nab?dky, akce, slevy, v?prodej, nab?dkov? let?ky - iTesco.cz

Visit tesco.shopy.cz

Key Findings

We analyzed Tesco.shopy.cz page load time and found that the first response time was 296 ms and then it took 22.3 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

tesco.shopy.cz performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value7.0 s

6/100

25%

SI (Speed Index)

Value5.3 s

57/100

10%

TBT (Total Blocking Time)

Value1,690 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.047

99/100

15%

TTI (Time to Interactive)

Value10.3 s

25/100

10%

Network Requests Diagram

tesco.shopy.cz

296 ms

500 ms

js

64 ms

adsbygoogle.js

123 ms

jquery.min.js

34 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Tesco.shopy.cz, 63% (20 requests) were made to Shopy.cz and 6% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source Toplist.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 29.6 kB (17%)

Content Size

170.8 kB

After Optimization

141.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tesco.shopy.cz main page is 170.8 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. 25% of websites need less resources to load. Javascripts take 117.8 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 22.5 kB

  • Original 30.4 kB
  • After minification 27.2 kB
  • After compression 7.9 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 22.5 kB or 74% of the original size.

Image Optimization

-6%

Potential reduce by 702 B

  • Original 11.6 kB
  • After minification 10.9 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. Tesco Shopy images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.6 kB

  • Original 117.8 kB
  • After minification 117.8 kB
  • After compression 116.3 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

-45%

Potential reduce by 4.9 kB

  • Original 10.9 kB
  • After minification 10.9 kB
  • After compression 6.0 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. Tesco.shopy.cz needs all CSS files to be minified and compressed as it can save up to 4.9 kB or 45% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (38%)

Requests Now

26

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tesco Shopy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

tesco.shopy.cz

tesco.shopy.cz

296 ms

500 ms

js

js

64 ms

adsbygoogle.js

adsbygoogle.js

123 ms

jquery.min.js

jquery.min.js

34 ms

sipka-nahoru.js

sipka-nahoru.js

112 ms

respmenu.js

respmenu.js

229 ms

style.css

style.css

503 ms

jquery.cookiebar2.css

jquery.cookiebar2.css

335 ms

jquery.cookiebar.js

jquery.cookiebar.js

327 ms

js

js

55 ms

analytics.js

analytics.js

104 ms

collect

collect

21 ms

top.png

top.png

102 ms

logo-shopy.gif

logo-shopy.gif

235 ms

tesco.jpg

tesco.jpg

196 ms

but-markety-go.png

but-markety-go.png

200 ms

css

css

30 ms

css

css

46 ms

market-potraviny.webp

market-potraviny.webp

289 ms

lidl.gif

lidl.gif

102 ms

kaufland.gif

kaufland.gif

101 ms

penny.gif

penny.gif

100 ms

globus.gif

globus.gif

102 ms

makro.gif

makro.gif

104 ms

tesco.gif

tesco.gif

202 ms

billa.gif

billa.gif

201 ms

albert.gif

albert.gif

202 ms

coop.gif

coop.gif

202 ms

dot.asp

dot.asp

20414 ms

font

font

16 ms

font

font

25 ms

Accessibility Review

tesco.shopy.cz accessibility score

86

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.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

tesco.shopy.cz 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

Page has valid source maps

SEO Factors

tesco.shopy.cz SEO score

91

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 Tesco.shopy.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 Tesco.shopy.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

tesco.shopy.cz

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