Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

lucid.cz

Technický průmysl a bižuterie od roku 1919 | LUCID spol. s r.o.

Page Load Speed

8.4 sec in total

First Response

589 ms

Resources Loaded

6.9 sec

Page Rendered

876 ms

lucid.cz screenshot

About Website

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

Jsme česká firma s letitými zkušenostmi. Zaměření na bižuterii, vývoj a výrobu lisovaných kovodílů pro automobilový, elektrotechnický a spotřební průmysl.

Visit lucid.cz

Key Findings

We analyzed Lucid.cz page load time and found that the first response time was 589 ms and then it took 7.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

lucid.cz performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value18.6 s

0/100

25%

SI (Speed Index)

Value21.0 s

0/100

10%

TBT (Total Blocking Time)

Value27,780 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.081

94/100

15%

TTI (Time to Interactive)

Value36.8 s

0/100

10%

Network Requests Diagram

lucid.cz

589 ms

www.lucid.cz

2179 ms

content.css

323 ms

j2store.css

355 ms

mod_j2products.css

361 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 82% of them (61 requests) were addressed to the original Lucid.cz, 7% (5 requests) were made to Fonts.googleapis.com and 4% (3 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Lucid.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 826.1 kB (37%)

Content Size

2.2 MB

After Optimization

1.4 MB

In fact, the total size of Lucid.cz main page is 2.2 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. 65% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 142.5 kB

  • Original 170.9 kB
  • After minification 161.9 kB
  • After compression 28.3 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 142.5 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 127 B

  • Original 1.1 MB
  • After minification 1.1 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. LUCID images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 478.3 kB

  • Original 664.5 kB
  • After minification 573.5 kB
  • After compression 186.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 478.3 kB or 72% of the original size.

CSS Optimization

-81%

Potential reduce by 205.2 kB

  • Original 253.7 kB
  • After minification 214.7 kB
  • After compression 48.5 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. Lucid.cz needs all CSS files to be minified and compressed as it can save up to 205.2 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 54 (77%)

Requests Now

70

After Optimization

16

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of LUCID. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 25 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

lucid.cz accessibility score

85

Accessibility Issues

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

Buttons do not have an accessible name

High

Form elements do not have associated labels

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.

Best Practices

lucid.cz best practices score

75

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

Browser errors were logged to the console

SEO Factors

lucid.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

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lucid.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 Lucid.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 data is detected on the main page of LUCID. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: