Tools & Wizards About Us
brens.cz screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

brens.cz

SPEED WITH SILENCES

Page Load Speed

6 sec in total

First Response

617 ms

Resources Loaded

4.5 sec

Page Rendered

880 ms

brens.cz screenshot

About Website

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

GREEN TRACK WITH SILENCES

Visit brens.cz

Key Findings

We analyzed Brens.cz page load time and found that the first response time was 617 ms and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

brens.cz performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value11.1 s

0/100

25%

SI (Speed Index)

Value7.0 s

33/100

10%

TBT (Total Blocking Time)

Value850 ms

34/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value10.7 s

23/100

10%

Network Requests Diagram

617 ms

12nvq6.css

599 ms

1grpw4.css

1098 ms

2hlj35.css

620 ms

2rdzz2.css

914 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Brens.cz, 57% (17 requests) were made to Duyn491kcolsw.cloudfront.net and 40% (12 requests) were made to 220cf289d0.clvaw-cdnwnd.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source 220cf289d0.clvaw-cdnwnd.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 103.1 kB (2%)

Content Size

6.6 MB

After Optimization

6.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Brens.cz main page is 6.6 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. 25% of websites need less resources to load. Images take 6.3 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 53.8 kB

  • Original 69.8 kB
  • After minification 66.4 kB
  • After compression 15.9 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 53.8 kB or 77% of the original size.

Image Optimization

-1%

Potential reduce by 48.6 kB

  • Original 6.3 MB
  • After minification 6.2 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. Brens images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 189 B

  • Original 154.3 kB
  • After minification 154.3 kB
  • After compression 154.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 491 B

  • Original 141.6 kB
  • After minification 141.6 kB
  • After compression 141.2 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. Brens.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 6 (21%)

Requests Now

29

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Brens. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

617 ms

12nvq6.css

12nvq6.css

599 ms

1grpw4.css

1grpw4.css

1098 ms

2hlj35.css

2hlj35.css

620 ms

2rdzz2.css

2rdzz2.css

914 ms

0hcjg1.css

0hcjg1.css

617 ms

27twow.css

27twow.css

1050 ms

3v8hym.js

3v8hym.js

1222 ms

lang.en.1408.js

lang.en.1408.js

918 ms

compiled.multi.2-1724.js

compiled.multi.2-1724.js

1219 ms

BRENS%20EUROPE.jpg

BRENS%20EUROPE.jpg

586 ms

3pq60x.png

3pq60x.png

97 ms

20160428_141940.jpeg

20160428_141940.jpeg

1245 ms

DJI_0149.JPG

DJI_0149.JPG

1266 ms

CYKLO-1-5.jpg

CYKLO-1-5.jpg

1120 ms

brens%20na-1.jpg

brens%20na-1.jpg

1030 ms

P1010054.JPG

P1010054.JPG

1249 ms

P5310070.JPG

P5310070.JPG

1231 ms

P1010054-4.JPG

P1010054-4.JPG

1710 ms

d0g8is.jpg

d0g8is.jpg

1784 ms

20150713_173541.jpg

20150713_173541.jpg

1855 ms

brens%20na-0.jpg

brens%20na-0.jpg

1560 ms

IMG_2158.JPG

IMG_2158.JPG

1848 ms

49hvvj.svg

49hvvj.svg

4 ms

07p3l4.svg

07p3l4.svg

295 ms

0a871v.svg

0a871v.svg

4 ms

15f339.svg

15f339.svg

5 ms

3gsyp1.svg

3gsyp1.svg

8 ms

328sfr.svg

328sfr.svg

303 ms

04pi85.css

04pi85.css

294 ms

Accessibility Review

brens.cz accessibility score

91

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

brens.cz best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

brens.cz SEO score

98

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

brens.cz

Open Graph data is detected on the main page of Brens. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: