Tools & Wizards About Us

Report Summary

  • 73

    Performance

    Renders faster than
    82% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

prolux.cz

PROLUX Consulting, REALITY - REALITNÍ KANCELÁŘ

Page Load Speed

1.9 sec in total

First Response

401 ms

Resources Loaded

1.4 sec

Page Rendered

94 ms

About Website

Click here to check amazing PROLUX content. Otherwise, check out these important facts you probably never knew about prolux.cz

PROLUX Consulting, REALITY - REALITNÍ KANCELÁŘ - Prolux nabízí prověřené a kvalitní realitní servis

Visit prolux.cz

Key Findings

We analyzed Prolux.cz page load time and found that the first response time was 401 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

prolux.cz performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.4 s

93/100

10%

Network Requests Diagram

prolux.cz

401 ms

style.css

197 ms

menu.css

189 ms

ajax.js

189 ms

do.js

190 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 94% of them (31 requests) were addressed to the original Prolux.cz, 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (491 ms) belongs to the original domain Prolux.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 83.1 kB (26%)

Content Size

322.5 kB

After Optimization

239.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Prolux.cz main page is 322.5 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 181.7 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 4.5 kB

  • Original 6.7 kB
  • After minification 6.5 kB
  • After compression 2.2 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 4.5 kB or 67% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 181.7 kB
  • After minification 181.7 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. PROLUX images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 62.9 kB

  • Original 114.7 kB
  • After minification 114.1 kB
  • After compression 51.8 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 62.9 kB or 55% of the original size.

CSS Optimization

-81%

Potential reduce by 15.7 kB

  • Original 19.3 kB
  • After minification 15.6 kB
  • After compression 3.6 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. Prolux.cz needs all CSS files to be minified and compressed as it can save up to 15.7 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (28%)

Requests Now

32

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PROLUX. 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 as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

prolux.cz accessibility score

61

Accessibility Issues

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

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

Form elements do not have associated labels

Best Practices

prolux.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

prolux.cz SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

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