Tools & Wizards About Us

Report Summary

  • 90

    Performance

    Renders faster than
    91% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

zavodni-baterie.cz

Lehk? z?vodn? autobaterie, moto a ?ty?kolka| Z?vodn? baterie moto, auto LiFePO4

Page Load Speed

3.4 sec in total

First Response

1.5 sec

Resources Loaded

1.9 sec

Page Rendered

87 ms

About Website

Click here to check amazing Za Vodn I Baterie content for Czech Republic. Otherwise, check out these important facts you probably never knew about zavodni-baterie.cz

Z?vodn? LiFePO4 baterie jsou o 75% leh?? ne? gelov? olov?n? baterie. Sn?en?m v?hy dos?hnete lep??ch ?as? pro okruhy, rally, moto, karting. Mal? rozm?r pro custom bikes, letadla a MPG krosny.

Visit zavodni-baterie.cz

Key Findings

We analyzed Zavodni-baterie.cz page load time and found that the first response time was 1.5 sec and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

zavodni-baterie.cz performance score

90

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

85/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

83/100

25%

SI (Speed Index)

Value3.5 s

88/100

10%

TBT (Total Blocking Time)

Value170 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.7 s

90/100

10%

Network Requests Diagram

zavodni-baterie.cz

1455 ms

main.css

107 ms

plusone.js

20 ms

widgets.js

43 ms

ga.js

33 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that 61% of them (11 requests) were addressed to the original Zavodni-baterie.cz, 11% (2 requests) were made to Apis.google.com and 11% (2 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Zavodni-baterie.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 10.1 kB (7%)

Content Size

155.2 kB

After Optimization

145.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zavodni-baterie.cz main page is 155.2 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. 30% of websites need less resources to load. Javascripts take 98.0 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 6.6 kB

  • Original 9.7 kB
  • After minification 9.6 kB
  • After compression 3.1 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 6.6 kB or 68% of the original size.

Image Optimization

-7%

Potential reduce by 3.3 kB

  • Original 45.7 kB
  • After minification 42.4 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. Za Vodn I Baterie images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 96 B

  • Original 98.0 kB
  • After minification 98.0 kB
  • After compression 97.9 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

-5%

Potential reduce by 86 B

  • Original 1.8 kB
  • After minification 1.8 kB
  • After compression 1.7 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. Zavodni-baterie.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 9 (53%)

Requests Now

17

After Optimization

8

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Za Vodn I Baterie. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

zavodni-baterie.cz accessibility score

72

Accessibility Issues

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

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

Form elements do not have associated labels

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

zavodni-baterie.cz best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

zavodni-baterie.cz SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1250;

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zavodni-baterie.cz can be misinterpreted by Google and other search engines. Our service has detected that English 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 Zavodni-baterie.cz main page’s claimed encoding is windows-1250;. 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

Open Graph description is not detected on the main page of Za Vodn I Baterie. 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: