Report Summary

  • 65

    Performance

    Renders faster than
    79% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

corfix.cz

CORFIX DISTRIBUTION s. r. o.

Page Load Speed

5.1 sec in total

First Response

333 ms

Resources Loaded

4.1 sec

Page Rendered

711 ms

corfix.cz screenshot

About Website

Visit corfix.cz now to see the best up-to-date CORFIX content for Czech Republic and also check out these interesting facts you probably never knew about corfix.cz

Visit corfix.cz

Key Findings

We analyzed Corfix.cz page load time and found that the first response time was 333 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

corfix.cz performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

25/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.021

100/100

15%

TTI (Time to Interactive)

Value7.3 s

49/100

10%

Network Requests Diagram

corfix.cz

333 ms

www.corfix.cz

899 ms

style.css

333 ms

jquery-1.2.6.pack.js

441 ms

jquery.form.js

330 ms

Our browser made a total of 125 requests to load all elements on the main page. We found that 30% of them (38 requests) were addressed to the original Corfix.cz, 68% (85 requests) were made to Obchod.corfix.cz and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Obchod.corfix.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 269.4 kB (36%)

Content Size

746.2 kB

After Optimization

476.8 kB

In fact, the total size of Corfix.cz main page is 746.2 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. 40% of websites need less resources to load. Images take 434.3 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 91.8 kB

  • Original 104.8 kB
  • After minification 103.2 kB
  • After compression 13.0 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. 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 91.8 kB or 88% of the original size.

Image Optimization

-7%

Potential reduce by 31.1 kB

  • Original 434.3 kB
  • After minification 403.2 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. CORFIX images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 113.0 kB

  • Original 166.4 kB
  • After minification 116.7 kB
  • After compression 53.4 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 113.0 kB or 68% of the original size.

CSS Optimization

-82%

Potential reduce by 33.5 kB

  • Original 40.7 kB
  • After minification 33.5 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. Corfix.cz needs all CSS files to be minified and compressed as it can save up to 33.5 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (11%)

Requests Now

123

After Optimization

109

The browser has sent 123 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CORFIX. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

corfix.cz accessibility score

95

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

Best Practices

corfix.cz best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

corfix.cz SEO score

67

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1250

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