Report Summary

  • 63

    Performance

    Renders faster than
    78% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

bryle-online.cz

BRÝLE - značkové brýle se slevou až 50% - bryle-online.cz

Page Load Speed

4.4 sec in total

First Response

750 ms

Resources Loaded

2.4 sec

Page Rendered

1.3 sec

bryle-online.cz screenshot

About Website

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

BRÝLE - značkové brýle se slevou až 50% - bryle-online.cz | Brýle CHRISTIAN DIOR Dioptrické brýle Sluneční brýle Sportovní brýle Dámské brýle

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Key Findings

We analyzed Bryle-online.cz page load time and found that the first response time was 750 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

bryle-online.cz performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

76/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

90/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value1,760 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.034

100/100

15%

TTI (Time to Interactive)

Value5.2 s

75/100

10%

Network Requests Diagram

bryle-online.cz

750 ms

stylesheet.css

440 ms

stylesheet_cocky.css

548 ms

stylesheet_header_menu.css

649 ms

stylesheet_vyhledavani.css

660 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 80% of them (35 requests) were addressed to the original Bryle-online.cz, 5% (2 requests) were made to Heureka.cz and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (750 ms) belongs to the original domain Bryle-online.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 56.2 kB (7%)

Content Size

814.7 kB

After Optimization

758.5 kB

In fact, the total size of Bryle-online.cz main page is 814.7 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. Images take 705.8 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 16.2 kB

  • Original 23.2 kB
  • After minification 20.1 kB
  • After compression 7.0 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. This page needs HTML code to be minified as it can gain 3.2 kB, which is 14% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 16.2 kB or 70% of the original size.

Image Optimization

-0%

Potential reduce by 1.5 kB

  • Original 705.8 kB
  • After minification 704.3 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. Bryle Online images are well optimized though.

JavaScript Optimization

-47%

Potential reduce by 35.9 kB

  • Original 76.0 kB
  • After minification 72.6 kB
  • After compression 40.0 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 35.9 kB or 47% of the original size.

CSS Optimization

-26%

Potential reduce by 2.5 kB

  • Original 9.6 kB
  • After minification 9.4 kB
  • After compression 7.2 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. Bryle-online.cz needs all CSS files to be minified and compressed as it can save up to 2.5 kB or 26% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (46%)

Requests Now

39

After Optimization

21

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bryle Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

bryle-online.cz accessibility score

77

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

bryle-online.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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

bryle-online.cz SEO score

77

Search Engine Optimization Advices

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 Bryle-online.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 Bryle-online.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 Bryle Online. 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: