Tools & Wizards About Us

Report Summary

  • 79

    Performance

    Renders faster than
    85% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

chalko.cz

CHALKO | v?roba a prodej stavebn?ch a speci?ln?ch h?eb?k?

Page Load Speed

2.2 sec in total

First Response

519 ms

Resources Loaded

1.5 sec

Page Rendered

131 ms

About Website

Visit chalko.cz now to see the best up-to-date CHALKO content and also check out these interesting facts you probably never knew about chalko.cz

production of nails, roof cover and klamp tools, support tools, installation and repair of roofs, plumbing and metal works, blasting

Visit chalko.cz

Key Findings

We analyzed Chalko.cz page load time and found that the first response time was 519 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

chalko.cz performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

80/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

44/100

25%

SI (Speed Index)

Value2.9 s

95/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.163

72/100

15%

TTI (Time to Interactive)

Value2.1 s

99/100

10%

Network Requests Diagram

chalko.cz

519 ms

global.css

209 ms

design.css

208 ms

form.css

206 ms

popbox.css

198 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 93% of them (25 requests) were addressed to the original Chalko.cz, 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (565 ms) belongs to the original domain Chalko.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 15.3 kB (9%)

Content Size

172.9 kB

After Optimization

157.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chalko.cz main page is 172.9 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. 20% of websites need less resources to load. Images take 128.8 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 7.5 kB

  • Original 10.8 kB
  • After minification 10.4 kB
  • After compression 3.3 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 7.5 kB or 69% of the original size.

Image Optimization

-2%

Potential reduce by 2.7 kB

  • Original 128.8 kB
  • After minification 126.1 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. CHALKO images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 4.2 kB

  • Original 29.6 kB
  • After minification 29.6 kB
  • After compression 25.4 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 4.2 kB or 14% of the original size.

CSS Optimization

-23%

Potential reduce by 814 B

  • Original 3.6 kB
  • After minification 3.6 kB
  • After compression 2.8 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. Chalko.cz needs all CSS files to be minified and compressed as it can save up to 814 B or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (48%)

Requests Now

25

After Optimization

13

  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CHALKO. 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 from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

chalko.cz accessibility score

68

Accessibility Issues

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

Links do not have a discernible name

Best Practices

chalko.cz best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

chalko.cz SEO score

67

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    CP1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chalko.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Chalko.cz main page’s claimed encoding is cp1250. 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 CHALKO. 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: