Tools & Wizards About Us
slevovar.cz screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

slevovar.cz

Každý den nové slevy

Page Load Speed

6.5 sec in total

First Response

347 ms

Resources Loaded

5.7 sec

Page Rendered

500 ms

slevovar.cz screenshot

About Website

Welcome to slevovar.cz homepage info - get ready to check Slevovar best content for Czech Republic right away, or after learning these important things about slevovar.cz

Moderní obchod rozdělený do kategorií jako je automoto, bazény, domácnost, elektronika, dílna, hračky, fitness nářadí, kuchyně, úklid

Visit slevovar.cz

Key Findings

We analyzed Slevovar.cz page load time and found that the first response time was 347 ms and then it took 6.2 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

slevovar.cz performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0.19

64/100

15%

TTI (Time to Interactive)

Value11.6 s

18/100

10%

Network Requests Diagram

slevovar.cz

347 ms

www.slevovar.cz

586 ms

default.css

235 ms

jssor.css

239 ms

merge.core-1.1.min.js

715 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 58% of them (43 requests) were addressed to the original Slevovar.cz, 9% (7 requests) were made to Img0.ogroup.cz and 8% (6 requests) were made to Img1.ogroup.cz. The less responsive or slowest element that took the longest time to load (4.1 sec) relates to the external source Img1.ogroup.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 305.1 kB (31%)

Content Size

993.5 kB

After Optimization

688.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Slevovar.cz main page is 993.5 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. 35% of websites need less resources to load. Images take 576.2 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 63.4 kB

  • Original 72.8 kB
  • After minification 66.5 kB
  • After compression 9.4 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 63.4 kB or 87% of the original size.

Image Optimization

-1%

Potential reduce by 3.7 kB

  • Original 576.2 kB
  • After minification 572.4 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. Slevovar images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 185.7 kB

  • Original 282.9 kB
  • After minification 273.9 kB
  • After compression 97.2 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 185.7 kB or 66% of the original size.

CSS Optimization

-85%

Potential reduce by 52.2 kB

  • Original 61.6 kB
  • After minification 47.2 kB
  • After compression 9.3 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. Slevovar.cz needs all CSS files to be minified and compressed as it can save up to 52.2 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (36%)

Requests Now

70

After Optimization

45

  • Images
  • JavaScript
  • CSS

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Slevovar. 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 as a result speed up the page load time.

Network Requests Diagram

slevovar.cz

slevovar.cz

347 ms

www.slevovar.cz

www.slevovar.cz

586 ms

default.css

default.css

235 ms

jssor.css

jssor.css

239 ms

merge.core-1.1.min.js

merge.core-1.1.min.js

715 ms

jssor.slider.mini.js

jssor.slider.mini.js

480 ms

loadbanner.js

loadbanner.js

240 ms

work-ajax.js

work-ajax.js

245 ms

popup.js

popup.js

348 ms

plusone.js

plusone.js

86 ms

3300 ms

590 ms

1091 ms

586 ms

1986 ms

1989 ms

3054 ms

3050 ms

2923 ms

468 ms

968 ms

2107 ms

3053 ms

4066 ms

1979 ms

3040 ms

4041 ms

4049 ms

4059 ms

3165 ms

3050 ms

4037 ms

4054 ms

4052 ms

3172 ms

bg_body_new.jpg

bg_body_new.jpg

152 ms

ico_home.gif

ico_home.gif

154 ms

ico_on.gif

ico_on.gif

152 ms

ico_email.gif

ico_email.gif

153 ms

ico_telefon.gif

ico_telefon.gif

154 ms

logo_slevovar.jpg

logo_slevovar.jpg

152 ms

kosik.gif

kosik.gif

233 ms

lupa

lupa

236 ms

btn_search.jpg

btn_search.jpg

234 ms

right.gif

right.gif

241 ms

left.gif

left.gif

240 ms

vkat.gif

vkat.gif

240 ms

loading.gif

loading.gif

347 ms

roller_snap.jpg

roller_snap.jpg

464 ms

reflexni_smajlici.jpg

reflexni_smajlici.jpg

736 ms

banner_tricko_violento.jpg

banner_tricko_violento.jpg

744 ms

budik_s_nocni_oblohou.jpg

budik_s_nocni_oblohou.jpg

711 ms

bezdratova_sluchatka_5v1.jpg

bezdratova_sluchatka_5v1.jpg

709 ms

celovka_cree_led_chip.jpg

celovka_cree_led_chip.jpg

806 ms

a17.png

a17.png

580 ms

vice.gif

vice.gif

699 ms

bg_koupit.jpg

bg_koupit.jpg

813 ms

btn_koupit.jpg

btn_koupit.jpg

829 ms

skrt.gif

skrt.gif

830 ms

hodiny.gif

hodiny.gif

850 ms

ukazatel_90.gif

ukazatel_90.gif

862 ms

ok.gif

ok.gif

923 ms

bg_ctv_koupit.gif

bg_ctv_koupit.gif

929 ms

hodiny_bez.gif

hodiny_bez.gif

947 ms

mn_koupit_ar.gif

mn_koupit_ar.gif

955 ms

mn_koupit_za.jpg

mn_koupit_za.jpg

966 ms

loading.gif

loading.gif

978 ms

bg_popup.jpg

bg_popup.jpg

1002 ms

bg_foot.jpg

bg_foot.jpg

1010 ms

ga.js

ga.js

64 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

54 ms

__utm.gif

__utm.gif

12 ms

collect

collect

60 ms

ga-audiences

ga-audiences

43 ms

Accessibility Review

slevovar.cz accessibility score

70

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

Best Practices

slevovar.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

Page has valid source maps

SEO Factors

slevovar.cz SEO score

91

Search Engine Optimization Advices

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

    UTF-8

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

slevovar.cz

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