Tools & Wizards About Us
stiebel-eltron.cz screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

stiebel-eltron.cz

STIEBEL ELTRON | Tepelná čerpadla, rekuperace, ohřev vody

Page Load Speed

6.1 sec in total

First Response

1.2 sec

Resources Loaded

4.4 sec

Page Rendered

538 ms

stiebel-eltron.cz screenshot

About Website

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

STIEBEL ELTRON je výrobce technologií pro ohřev vody, vytápění, větrání a chlazení nabízející pouze ty nejkvalitnější produkty, se kterými ušetříte.

Visit stiebel-eltron.cz

Key Findings

We analyzed Stiebel-eltron.cz page load time and found that the first response time was 1.2 sec and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

stiebel-eltron.cz performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value16.8 s

0/100

25%

SI (Speed Index)

Value13.9 s

1/100

10%

TBT (Total Blocking Time)

Value850 ms

34/100

30%

CLS (Cumulative Layout Shift)

Value0.047

99/100

15%

TTI (Time to Interactive)

Value16.3 s

5/100

10%

Network Requests Diagram

home.html

1172 ms

base-ste-evo.css

550 ms

homepage-ste-evo.css

433 ms

svg-ste-evo.css

545 ms

modernizr-custom.js

313 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 60% of them (24 requests) were addressed to the original Stiebel-eltron.cz, 10% (4 requests) were made to Stiebel-eltron.piwik.pro and 8% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Stiebel-eltron.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 596.2 kB (48%)

Content Size

1.2 MB

After Optimization

635.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Stiebel-eltron.cz main page is 1.2 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. 60% of websites need less resources to load. Javascripts take 858.0 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 101.2 kB

  • Original 121.8 kB
  • After minification 98.0 kB
  • After compression 20.6 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 23.8 kB, which is 20% 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 101.2 kB or 83% of the original size.

Image Optimization

-5%

Potential reduce by 4.8 kB

  • Original 101.7 kB
  • After minification 96.9 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. STIEBEL ELTRON images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 489.1 kB

  • Original 858.0 kB
  • After minification 478.8 kB
  • After compression 368.9 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 489.1 kB or 57% of the original size.

CSS Optimization

-1%

Potential reduce by 1.1 kB

  • Original 150.0 kB
  • After minification 150.0 kB
  • After compression 148.9 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. Stiebel-eltron.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 24 (75%)

Requests Now

32

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of STIEBEL ELTRON. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

home.html

home.html

1172 ms

base-ste-evo.css

base-ste-evo.css

550 ms

homepage-ste-evo.css

homepage-ste-evo.css

433 ms

svg-ste-evo.css

svg-ste-evo.css

545 ms

modernizr-custom.js

modernizr-custom.js

313 ms

require.js

require.js

325 ms

iframeResizer.contentWindow.js

iframeResizer.contentWindow.js

323 ms

logo-stiebel-eltron-red-black.svg

logo-stiebel-eltron-red-black.svg

310 ms

1b28a49c-5de9-40b1-bcdb-35b54f3950a0.js

1b28a49c-5de9-40b1-bcdb-35b54f3950a0.js

532 ms

ajax-loader.gif

ajax-loader.gif

311 ms

3f7c17a6-3f7e-4368-952d-8429e585e431.woff

3f7c17a6-3f7e-4368-952d-8429e585e431.woff

419 ms

47afa150-919f-4024-9d78-d159e7d4baee.woff

47afa150-919f-4024-9d78-d159e7d4baee.woff

419 ms

5a9f4a1e-bb12-46c0-821e-3782abe140ac.woff

5a9f4a1e-bb12-46c0-821e-3782abe140ac.woff

412 ms

main.js

main.js

572 ms

ppms.js

ppms.js

147 ms

gtm.js

gtm.js

150 ms

fbevents.js

fbevents.js

88 ms

js

js

215 ms

hotjar-1777840.js

hotjar-1777840.js

260 ms

iframe_api

iframe_api

159 ms

image.desktop.v2.tepelne-cerpadlo.twothird.jpg

image.desktop.v2.tepelne-cerpadlo.twothird.jpg

550 ms

iframe-handler.js

iframe-handler.js

344 ms

login-related-content.js

login-related-content.js

344 ms

search-autosuggest.js

search-autosuggest.js

376 ms

stage.js

stage.js

376 ms

tabs-secondary.js

tabs-secondary.js

376 ms

teaser-slider.js

teaser-slider.js

1007 ms

ppms.php

ppms.php

382 ms

bat.js

bat.js

78 ms

js

js

75 ms

www-widgetapi.js

www-widgetapi.js

31 ms

modules.3b9efc26f753310c2bd8.js

modules.3b9efc26f753310c2bd8.js

46 ms

lodash.js

lodash.js

875 ms

TweenMax.min.js

TweenMax.min.js

730 ms

image.desktop.v2.startseite-desktop100yrsbildv2.stage.jpg

image.desktop.v2.startseite-desktop100yrsbildv2.stage.jpg

590 ms

retargeting.js

retargeting.js

701 ms

ppms.php

ppms.php

115 ms

ppms.php

ppms.php

170 ms

ppms.php

ppms.php

209 ms

swiper.js

swiper.js

331 ms

Accessibility Review

stiebel-eltron.cz accessibility score

84

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

Links do not have a discernible name

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

Best Practices

stiebel-eltron.cz best practices score

83

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

Missing source maps for large first-party JavaScript

SEO Factors

stiebel-eltron.cz SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

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 Stiebel-eltron.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 Stiebel-eltron.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

stiebel-eltron.cz

Open Graph data is detected on the main page of STIEBEL ELTRON. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: