8.4 sec in total
1.1 sec
7.1 sec
217 ms
Visit rwe.cz now to see the best up-to-date RWE content for Czech Republic and also check out these interesting facts you probably never knew about rwe.cz
We dared to make a new start: With over 125 years of history, RWE has fundamentally changed and is now a leading supplier of renewable energies worldwide.
Visit rwe.czWe analyzed Rwe.cz page load time and found that the first response time was 1.1 sec and then it took 7.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
rwe.cz performance score
name
value
score
weighting
Value5.7 s
5/100
10%
Value16.1 s
0/100
25%
Value11.3 s
5/100
10%
Value4,210 ms
1/100
30%
Value0
100/100
15%
Value19.8 s
2/100
10%
1053 ms
368 ms
866 ms
831 ms
406 ms
Our browser made a total of 44 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Rwe.cz, 7% (3 requests) were made to App.usercentrics.eu and 7% (3 requests) were made to Api.usercentrics.eu. The less responsive or slowest element that took the longest time to load (2.9 sec) relates to the external source Uct.service.usercentrics.eu.
Page size can be reduced by 75.2 kB (4%)
2.0 MB
1.9 MB
In fact, the total size of Rwe.cz main page is 2.0 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 1.8 MB which makes up the majority of the site volume.
Potential reduce by 69.9 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 69.9 kB or 78% of the original size.
Potential reduce by 1.4 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. RWE images are well optimized though.
Potential reduce by 2.5 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 1.4 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. Rwe.cz has all CSS files already compressed.
Number of requests can be reduced by 19 (49%)
39
20
The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of RWE. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
1053 ms
nkStyles.20240318.9.min.css
368 ms
uikit.20240318.9.min.css
866 ms
vendor.20240318.9.min.js
831 ms
vendor.20240318.9.min.css
406 ms
VisitorIdentification.js
362 ms
runtime.js
304 ms
nkJavascript.20240318.9.min.js
616 ms
app.20240318.9.min.js
1082 ms
uikit.20240318.9.min.js
1110 ms
appExtended.20240318.9.min.js
974 ms
gtm.js
121 ms
STA02-prag.jpg
433 ms
RWE_phone.svg
430 ms
RWE_Icon_weiss_Energiegruen_hell_facebook.svg
689 ms
RWE_Icon_weiss_Energiegruen_hell_X.svg
218 ms
RWE_Icon_weiss_Energiegruen_hell_Mail.svg
430 ms
RWE_Icon_weiss_Energiegruen_hell_LinkedIn.svg
431 ms
RWE_Icon_weiss_Energiegruen_hell_Xing.svg
822 ms
RWE_Icon_weiss_Energiegruen_hell_X_UK.svg
1048 ms
RWE_Icon_weiss_Energiegruen_hell_LinkedIn_CEO.svg
623 ms
RWE_Icon_weiss_Energiegruen_hell_Instagram.svg
621 ms
RWESans-Medium.woff
576 ms
RWESans-Regular.woff
745 ms
RWE_Icon_Font.ttf
882 ms
RWESans-Bold.woff
775 ms
loader.js
285 ms
67956.js
541 ms
205
825 ms
e.js
772 ms
fbevents.js
41 ms
insight.min.js
68 ms
bundle_legacy.js
31 ms
insight_tag_errors.gif
134 ms
languages.json
104 ms
t.js
111 ms
en.json
104 ms
print.css
184 ms
1px.png
8 ms
cntcc
784 ms
translations-en.json
13 ms
en
125 ms
uct
2881 ms
RWE-logo-White.png
2060 ms
rwe.cz accessibility score
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
[aria-*] attributes do not match their roles
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
[aria-*] attributes do not have valid values
[aria-*] attributes are not valid or misspelled
ARIA IDs are not unique
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
List items (<li>) are not contained within <ul> or <ol> parent elements.
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
rwe.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
rwe.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rwe.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Rwe.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.
rwe.cz
Open Graph data is detected on the main page of RWE. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: