Report Summary

  • 22

    Performance

    Renders faster than
    41% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 97

    SEO

    Google-friendlier than
    92% of websites

designblok.cz

Homepage | Prague International Design Festival

Page Load Speed

13.4 sec in total

First Response

362 ms

Resources Loaded

9.2 sec

Page Rendered

3.8 sec

designblok.cz screenshot

About Website

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

Designblok je mezinárodní přehlídka designu založená v roce 1999. Představuje aktuální novinky světového i domácího designu v nejvýznamnějších pražských obchodech a galeriích.

Visit designblok.cz

Key Findings

We analyzed Designblok.cz page load time and found that the first response time was 362 ms and then it took 13 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

designblok.cz performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value28.6 s

0/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value1,630 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.171

70/100

15%

TTI (Time to Interactive)

Value9.2 s

32/100

10%

Network Requests Diagram

designblok.cz

362 ms

www.designblok.cz

500 ms

stylesheet.css

126 ms

form.css

232 ms

jquery-1.7.2.min.js

446 ms

Our browser made a total of 285 requests to load all elements on the main page. We found that 95% of them (271 requests) were addressed to the original Designblok.cz, 2% (5 requests) were made to Maps.googleapis.com and 1% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Designblok.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (11%)

Content Size

9.9 MB

After Optimization

8.9 MB

In fact, the total size of Designblok.cz main page is 9.9 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. Only a small number of websites need less resources to load. Images take 9.4 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 94.8 kB

  • Original 114.5 kB
  • After minification 109.3 kB
  • After compression 19.7 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 94.8 kB or 83% of the original size.

Image Optimization

-8%

Potential reduce by 716.8 kB

  • Original 9.4 MB
  • After minification 8.7 MB

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. Design Blok images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 272.9 kB

  • Original 424.4 kB
  • After minification 411.8 kB
  • After compression 151.5 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 272.9 kB or 64% of the original size.

CSS Optimization

-80%

Potential reduce by 9.1 kB

  • Original 11.4 kB
  • After minification 8.3 kB
  • After compression 2.3 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. Designblok.cz needs all CSS files to be minified and compressed as it can save up to 9.1 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (4%)

Requests Now

283

After Optimization

271

The browser has sent 283 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Design Blok. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

designblok.cz accessibility score

83

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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

Links do not have a discernible name

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

designblok.cz best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

designblok.cz SEO score

97

Search Engine Optimization Advices

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

    N/A

  • Encoding

    UTF-8

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

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