Tools & Wizards About Us
elsaco.cz screenshot

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

elsaco.cz

ELSACO Kolín, vývoj, výroba a dodávky elektronických komponent pro půmyslovou automatizaci; regulace tepla

Page Load Speed

4.2 sec in total

First Response

882 ms

Resources Loaded

3.2 sec

Page Rendered

87 ms

elsaco.cz screenshot

About Website

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

ELSACO Kolín, vývoj, výroba a dodávky elektronických komponent pro půmyslovou automatizaci; regulace tepla

Visit elsaco.cz

Key Findings

We analyzed Elsaco.cz page load time and found that the first response time was 882 ms and then it took 3.3 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

elsaco.cz performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value3.7 s

85/100

10%

TBT (Total Blocking Time)

Value580 ms

51/100

30%

CLS (Cumulative Layout Shift)

Value0.028

100/100

15%

TTI (Time to Interactive)

Value5.5 s

70/100

10%

Network Requests Diagram

www.elsaco.cz

882 ms

2sloupce.css

214 ms

dtree.css

206 ms

cookieconsent.latest.min.js

18 ms

jquery-1.7.2.min.js

328 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 93% of them (26 requests) were addressed to the original Elsaco.cz, 4% (1 request) were made to S3.amazonaws.com and 4% (1 request) were made to Translate.google.com. The less responsive or slowest element that took the longest time to load (882 ms) belongs to the original domain Elsaco.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 152.5 kB (47%)

Content Size

324.3 kB

After Optimization

171.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Elsaco.cz main page is 324.3 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. HTML takes 181.8 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 150.6 kB

  • Original 181.8 kB
  • After minification 180.5 kB
  • After compression 31.2 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 150.6 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 79 B

  • Original 102.2 kB
  • After minification 102.1 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. ELSACO images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 836 B

  • Original 36.9 kB
  • After minification 36.9 kB
  • After compression 36.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-30%

Potential reduce by 1.0 kB

  • Original 3.4 kB
  • After minification 3.4 kB
  • After compression 2.4 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. Elsaco.cz needs all CSS files to be minified and compressed as it can save up to 1.0 kB or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (27%)

Requests Now

26

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ELSACO. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

www.elsaco.cz

www.elsaco.cz

882 ms

2sloupce.css

2sloupce.css

214 ms

dtree.css

dtree.css

206 ms

cookieconsent.latest.min.js

cookieconsent.latest.min.js

18 ms

jquery-1.7.2.min.js

jquery-1.7.2.min.js

328 ms

dtree.js

dtree.js

222 ms

element.js

element.js

41 ms

elsaco_logo.gif

elsaco_logo.gif

106 ms

34let.png

34let.png

128 ms

kosik_k.gif

kosik_k.gif

118 ms

5let_zaruka.png

5let_zaruka.png

128 ms

ccpu34_190.jpg

ccpu34_190.jpg

232 ms

pbi32s_190.jpg

pbi32s_190.jpg

286 ms

ugdm-31_or_190.jpg

ugdm-31_or_190.jpg

210 ms

slc21m.jpg

slc21m.jpg

215 ms

xbo123m.jpg

xbo123m.jpg

233 ms

slc-67_240.jpg

slc-67_240.jpg

237 ms

fred240.gif

fred240.gif

330 ms

navrhProdis.jpg

navrhProdis.jpg

319 ms

mdr204060_190.jpg

mdr204060_190.jpg

353 ms

t20up.gif

t20up.gif

351 ms

plus.gif

plus.gif

310 ms

line.gif

line.gif

344 ms

join.gif

join.gif

378 ms

joinbottom.gif

joinbottom.gif

396 ms

plusbottom.gif

plusbottom.gif

423 ms

empty.gif

empty.gif

421 ms

styl_print.css

styl_print.css

107 ms

Accessibility Review

elsaco.cz accessibility score

94

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

Best Practices

elsaco.cz best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

elsaco.cz SEO score

99

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 Elsaco.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 Elsaco.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

elsaco.cz

Open Graph description is not detected on the main page of ELSACO. 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: