Tools & Wizards About Us
stadtwerke-karlsruhe.de screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

stadtwerke-karlsruhe.de

Stadtwerke Karlsruhe | Ihr Energie- und Lebenspartner!

Page Load Speed

4.3 sec in total

First Response

402 ms

Resources Loaded

3.4 sec

Page Rendered

466 ms

stadtwerke-karlsruhe.de screenshot

About Website

Visit stadtwerke-karlsruhe.de now to see the best up-to-date Stadtwerke Karlsruhe content for Germany and also check out these interesting facts you probably never knew about stadtwerke-karlsruhe.de

Ihr Energie- und Lebenspartner für Karlsruhe und die Region ✔Strom, Erdgas, Fernwärme, Trinkwasser ✔Energiedienstleistungen ✔Besser versorgt, weiter gedacht.

Visit stadtwerke-karlsruhe.de

Key Findings

We analyzed Stadtwerke-karlsruhe.de page load time and found that the first response time was 402 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

stadtwerke-karlsruhe.de performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

42/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value1,540 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value1.02

2/100

15%

TTI (Time to Interactive)

Value12.4 s

15/100

10%

Network Requests Diagram

stadtwerke-karlsruhe.de

402 ms

www.stadtwerke-karlsruhe.de

883 ms

e.js

534 ms

jquery.js

113 ms

css.js

217 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 94% of them (62 requests) were addressed to the original Stadtwerke-karlsruhe.de, 3% (2 requests) were made to Code.etracker.com and 2% (1 request) were made to Etracker.de. The less responsive or slowest element that took the longest time to load (883 ms) belongs to the original domain Stadtwerke-karlsruhe.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 971.1 kB (45%)

Content Size

2.1 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Stadtwerke-karlsruhe.de main page is 2.1 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. HTML takes 981.5 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 884.7 kB

  • Original 981.5 kB
  • After minification 980.2 kB
  • After compression 96.8 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 884.7 kB or 90% of the original size.

Image Optimization

-3%

Potential reduce by 28.2 kB

  • Original 827.3 kB
  • After minification 799.2 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. Stadtwerke Karlsruhe images are well optimized though.

JavaScript Optimization

-18%

Potential reduce by 58.2 kB

  • Original 328.1 kB
  • After minification 328.0 kB
  • After compression 269.8 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 58.2 kB or 18% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (54%)

Requests Now

57

After Optimization

26

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stadtwerke Karlsruhe. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

stadtwerke-karlsruhe.de

stadtwerke-karlsruhe.de

402 ms

www.stadtwerke-karlsruhe.de

www.stadtwerke-karlsruhe.de

883 ms

e.js

e.js

534 ms

jquery.js

jquery.js

113 ms

css.js

css.js

217 ms

ui.js

ui.js

528 ms

jquery-migrate-3.0.0.min.js

jquery-migrate-3.0.0.min.js

313 ms

jquery.pulse.min.js

jquery.pulse.min.js

301 ms

design.js

design.js

432 ms

navigation.js

navigation.js

330 ms

list.js

list.js

321 ms

jquery.autocomplete.js

jquery.autocomplete.js

405 ms

form.autocomplete-default.js

form.autocomplete-default.js

415 ms

wa.js

wa.js

423 ms

form-tarifeBestellstreckeAll.js

form-tarifeBestellstreckeAll.js

441 ms

tariffinder.js

tariffinder.js

650 ms

bannerSlider.js

bannerSlider.js

522 ms

jquery-ui-Tarifberater.js

jquery-ui-Tarifberater.js

756 ms

jquery-ui.touch-punch.min.js

jquery-ui.touch-punch.min.js

596 ms

tooltipster.bundle.min.js

tooltipster.bundle.min.js

597 ms

tooltipster-swk.js

tooltipster-swk.js

649 ms

t.js

t.js

115 ms

logo-mobile.png

logo-mobile.png

131 ms

logo.png

logo.png

133 ms

icon-suche@stroke(285596).svg

icon-suche@stroke(285596).svg

132 ms

icon-moments@fill(285596).svg

icon-moments@fill(285596).svg

186 ms

icon-career@stroke(285596).svg

icon-career@stroke(285596).svg

187 ms

icon-contact@stroke(285596).svg

icon-contact@stroke(285596).svg

277 ms

icon-login@stroke(285596).svg

icon-login@stroke(285596).svg

278 ms

e3edd0ce-f7a0f5a4@2560w.jpg

e3edd0ce-f7a0f5a4@2560w.jpg

461 ms

ok-power-siegel-f0c79997-d077c485@100w.png

ok-power-siegel-f0c79997-d077c485@100w.png

279 ms

icon-haken-tariffinder@stroke(94c23c).svg

icon-haken-tariffinder@stroke(94c23c).svg

309 ms

47502274-f7a0f5a4@2560w.jpg

47502274-f7a0f5a4@2560w.jpg

428 ms

TUeV-Rheinland-Siegel-Logo-e48c25c2-d077c485@100w.png

TUeV-Rheinland-Siegel-Logo-e48c25c2-d077c485@100w.png

371 ms

67a0e659-f7a0f5a4@2560w.jpg

67a0e659-f7a0f5a4@2560w.jpg

626 ms

Qualitatssiegel-Glasfaser-a9caddbb-d077c485@100w.png

Qualitatssiegel-Glasfaser-a9caddbb-d077c485@100w.png

427 ms

db28aee4-f7a0f5a4@2560w.jpg

db28aee4-f7a0f5a4@2560w.jpg

807 ms

icon-strom@stroke(285596).svg

icon-strom@stroke(285596).svg

427 ms

icon-gas@stroke(848484).svg

icon-gas@stroke(848484).svg

504 ms

icon-gas@stroke(285596).svg

icon-gas@stroke(285596).svg

505 ms

icon-glasfaser@fill(848484).svg

icon-glasfaser@fill(848484).svg

531 ms

icon-glasfaser@fill(285596).svg

icon-glasfaser@fill(285596).svg

536 ms

icon-fernwaerme@stroke(848484).svg

icon-fernwaerme@stroke(848484).svg

609 ms

icon-fernwaerme@stroke(285596).svg

icon-fernwaerme@stroke(285596).svg

607 ms

Geldbeutel_KwK-20ab0fe1-814e6889@123w.PNG

Geldbeutel_KwK-20ab0fe1-814e6889@123w.PNG

634 ms

chat.png

chat.png

642 ms

ajax-loader.gif

ajax-loader.gif

710 ms

icons.svg

icons.svg

871 ms

mail@stroke(285596).svg

mail@stroke(285596).svg

643 ms

33437652-9317-4f97-8efd-4260a5e48f7b.woff

33437652-9317-4f97-8efd-4260a5e48f7b.woff

668 ms

3e4a9b4d-55bb-45b3-b367-6b63aeacc85b.woff

3e4a9b4d-55bb-45b3-b367-6b63aeacc85b.woff

690 ms

b4f3f929-f255-4859-b256-e5b3791705dc.woff

b4f3f929-f255-4859-b256-e5b3791705dc.woff

738 ms

37cc1267-6c18-4b6a-85cb-4ebdb0dee858.woff

37cc1267-6c18-4b6a-85cb-4ebdb0dee858.woff

757 ms

7cf06e2f-59a2-4b29-a61e-c3133adf21a3.woff

7cf06e2f-59a2-4b29-a61e-c3133adf21a3.woff

776 ms

0c2a587e-781c-4617-b44e-b717442c011c.woff

0c2a587e-781c-4617-b44e-b717442c011c.woff

796 ms

cntcc

cntcc

622 ms

host.js

host.js

399 ms

privatkunden-strom.php

privatkunden-strom.php

659 ms

privatkunden-gas.php

privatkunden-gas.php

662 ms

privatkunden-glasfaser.php

privatkunden-glasfaser.php

662 ms

design_9734718e435774d00e8083398121d419.css

design_9734718e435774d00e8083398121d419.css

877 ms

fd28e16d-f8ff749f@493w.jpg

fd28e16d-f8ff749f@493w.jpg

110 ms

8c686be4-f8ff749f@493w.jpg

8c686be4-f8ff749f@493w.jpg

117 ms

ui-bg_flat_75_ffffff_40x100.png

ui-bg_flat_75_ffffff_40x100.png

114 ms

mail@stroke(FFFFFF).svg

mail@stroke(FFFFFF).svg

112 ms

social-icons-outline@stroke(FFFFFF).svg

social-icons-outline@stroke(FFFFFF).svg

114 ms

Accessibility Review

stadtwerke-karlsruhe.de accessibility score

91

Accessibility Issues

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.

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

Best Practices

stadtwerke-karlsruhe.de 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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

stadtwerke-karlsruhe.de 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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stadtwerke-karlsruhe.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Stadtwerke-karlsruhe.de 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

stadtwerke-karlsruhe.de

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