Analyze Stadtwerke Kiel: Ihr Gas- und Stromanbieter im Norden - Stadtwerke Kiel AG

Strom, Erdgas, Wärme und Wasser: Die Stadtwerke Kiel sind Ihr Energieversorger in Schleswig-Holstein, Hamburg, Niedersachsen und Bremen.

Page load speed analysis

  • 49/100

    Normal result
  • 4

    Successful tests
  • 4

    Failed tests
  • First response

    331 ms

  • Resources loaded

    3.4 sec

  • Page rendered

    431 ms

  • Total page load time

    4.2 sec

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

We analyzed page load time and found that the first response time was 331 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 60% of websites can load faster.

Page optimization

  • HTML 88.9 kB
    Images 839.4 kB
    Javascripts 1.3 MB
    CSS 236.4 kB

    In fact, the total size of main page is 2.5 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. 40% of websites need less resources to load. Javascripts take 1.3 MB which makes up the majority of the site volume.

    • Original 88.9 kB
    • After minification 88.5 kB
    • After compression 13.1 kB

    HTML optimization

    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 75.8 kB or 85% of the original size.

    • Original 839.4 kB
    • After optimization 793.2 kB

    Image optimization

    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 Kiel images are well optimized though.

    • Original 1.3 MB
    • After minification 952.4 kB
    • After compression 270.6 kB

    JavaScript optimization

    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 1.0 MB or 79% of the original size.

    • Original 236.4 kB
    • After minification 179.9 kB
    • After compression 31.0 kB

    CSS optimization

    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. needs all CSS files to be minified and compressed as it can save up to 205.4 kB or 87% of the original size.

Network requests diagram

  • jquery_ui_css.css
  • font_awesome_css.css
  • app_css.css
  • she_css.css
  • fixes_css.css
  • ie10_css.css
  • vendors_full_js.js
  • foundation_full_js.js
  • hmmh_jquery_js.js
  • online_services_js.js
  • jquery_validate_min.js
  • jquery_number_min_js.js
  • she_jquery_js.js
  • e.js
  • conversion.js
  • jquery-1.8.3.min.js
  • t.js
  • analytics.js
  • brand.png
  • menu_line.png
  • arrow_switch.png
  • stadtwerke-kiel-horizont-ersparnis-1040x420.jpg
  • stadtwerke-kiel-hero-onlinekonto-1040.jpg
  • swkiel-teaser-solarstrom-1040x420.jpg
  • stadtwerke-kiel-qualitaet-siegel-268x217.jpg
  • flama_book_svg.svg
  • flama_bold_svg.svg
  • stadtwerke-kiel-energiespar-shop-nah-bunt-700x393.jpg
  • stadtwerke-kiel-stadtmark-700x393.jpg
  • swkiel-umzugsservice-700x393.jpg
  • swkiel-fernwaerme-teddybaer.jpg
  • stadtwerke-kiel-pm-fernwaerme-dampfnetzumstellung-300x189.jpg
  • stadtwerke-kiel-pm-bester-arbeitgeber-focus-109x61.jpg
  • stadtwerke-kiel-pm-23-02-2016-spende-15000-euro-109x61.jpg
  • stadtwerke-kiel-pm-waermespeicher-spiralverfahren-109x61.jpg
  • swkiel-kiter-ausbildung-700x393_INFOCENTER_BIG.jpg
  • swkiel-freundliche-rechnung-700x393_INFOCENTER_SMALL.jpg
  • swkiel-lageskizze-ghkw-700x393_INFOCENTER_SMALL.jpg
  • segel.png
  • X18F2EBE73859FA802E1615AC316F7AF4.js
  • fontawesome_webfont_woff.woff
  • collect
  • collect
  • bg-tarifberater-strom.png
  • flama_bold_woff.woff
  • cnt_js.php

Our browser made a total of 51 requests to load all elements on the main page. We found that 76% of them (39 requests) were addressed to the original, 6% (3 requests) were made to and 4% (2 requests) were made to The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain

Additional info on


The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stadtwerke Kiel. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.











Possible request optimization













Normal result


As for redirects, our browser was forwarded to before it reached this domain.

IP address uses IP addresses which are currently shared with 16 other domains. The more sites share the same stack of IP addresses, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Normal result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 60
NS 14400
NS 14400
NS 14400

14400 Mname:
Serial: 2022031101
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum-ttl: 14400

HTTPS certificate

SSL Certificate has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Poor result

Visitor World Map

Country of origin for 100% of all visits is Germany. It lies approximately 5040 miles away from the server location (United States) and such a long distance can negatively affect website speed, as it takes some time for data to travel back and forth between those places. That’s why one of the best ways to speed up page load time for the majority of users is moving the server to Germany or just closer to the user base.

Poor result

Poor result

Social Sharing Optimization

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

Language and encoding

Good result


DE de language flag


DE de language flag





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

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