2.5 sec in total
188 ms
2.1 sec
231 ms
Welcome to co2-rechner.de homepage info - get ready to check CO2 Rechner best content for Germany right away, or after learning these important things about co2-rechner.de
CO2-Rechner von klimAktiv
Visit co2-rechner.deWe analyzed Co2-rechner.de page load time and found that the first response time was 188 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
co2-rechner.de performance score
name
value
score
weighting
Value2.1 s
81/100
10%
Value3.9 s
53/100
25%
Value3.6 s
86/100
10%
Value150 ms
95/100
30%
Value0.003
100/100
15%
Value5.3 s
72/100
10%
188 ms
219 ms
106 ms
206 ms
288 ms
Our browser made a total of 40 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Co2-rechner.de, 95% (38 requests) were made to Uba.co2-rechner.de and 3% (1 request) were made to Piwik.klimaktiv.de. The less responsive or slowest element that took the longest time to load (712 ms) relates to the external source Uba.co2-rechner.de.
Page size can be reduced by 94.3 kB (28%)
341.6 kB
247.3 kB
In fact, the total size of Co2-rechner.de main page is 341.6 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. 45% of websites need less resources to load. Javascripts take 166.2 kB which makes up the majority of the site volume.
Potential reduce by 81.4 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 81.4 kB or 76% of the original size.
Potential reduce by 6.4 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. Obviously, CO2 Rechner needs image optimization as it can save up to 6.4 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 6.3 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.
Potential reduce by 87 B
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. Co2-rechner.de has all CSS files already compressed.
Number of requests can be reduced by 18 (53%)
34
16
The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CO2 Rechner. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
co2-rechner.de
188 ms
219 ms
bootstrap.min.css
106 ms
bootstrap-slider.css
206 ms
font-awesome.min.css
288 ms
animate.min.css
292 ms
enhanced.css.php
389 ms
custom.css.php
304 ms
modernizr-custom.js
302 ms
klaro-no-css.js
310 ms
jquery-1.11.1.min.js
482 ms
bootstrap.min.js
473 ms
bootstrap-slider.js
472 ms
bootbox.min.js
473 ms
jquery.socialshareprivacy.min.js
474 ms
js.cookie.js
503 ms
clipboard.min.js
503 ms
amcharts.js
712 ms
serial.js
521 ms
responsive.min.js
519 ms
enhancement_42.js
582 ms
footer_klimaktiv.svg
171 ms
ifeu104x91.jpg
181 ms
bmub408x150.png
214 ms
uba295x148.jpg
213 ms
bg-header-pattern.png
266 ms
uba_logo.png
271 ms
profil.svg
277 ms
living.svg
429 ms
mobility.svg
431 ms
food.svg
433 ms
consumption_income.svg
435 ms
bilanz.svg
437 ms
szenario.svg
440 ms
logo_ifeu.png
441 ms
MetaWebPro-Normal.woff
471 ms
MetaSerifWeb-Medium.woff
408 ms
fontawesome-webfont.woff
517 ms
MetaWebPro-Bold.woff
524 ms
piwik.js
478 ms
co2-rechner.de accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
co2-rechner.de best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
co2-rechner.de SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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
Document uses legible font sizes
Tap targets are not sized appropriately
DE
DE
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Co2-rechner.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 Co2-rechner.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.
co2-rechner.de
Open Graph description is not detected on the main page of CO2 Rechner. 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: