4.4 sec in total
398 ms
3.6 sec
354 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
RWE Supply & Trading CZ focuses in particular on trading natural gas, renting out real estate and providing services in the energy sector.
Visit rwe.czWe analyzed Rwe.cz page load time and found that the first response time was 398 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
rwe.cz performance score
name
value
score
weighting
Value6.3 s
3/100
10%
Value8.2 s
2/100
25%
Value14.2 s
1/100
10%
Value3,530 ms
1/100
30%
Value0
100/100
15%
Value14.5 s
9/100
10%
398 ms
1339 ms
238 ms
250 ms
373 ms
Our browser made a total of 96 requests to load all elements on the main page. We found that 75% of them (72 requests) were addressed to the original Rwe.cz, 3% (3 requests) were made to Googleads.g.doubleclick.net and 3% (3 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Rwe.cz.
Page size can be reduced by 468.1 kB (53%)
887.8 kB
419.6 kB
In fact, the total size of Rwe.cz main page is 887.8 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. 35% of websites need less resources to load. Javascripts take 457.9 kB which makes up the majority of the site volume.
Potential reduce by 17.7 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 17.7 kB or 71% of the original size.
Potential reduce by 12.4 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 316.7 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 316.7 kB or 69% of the original size.
Potential reduce by 121.4 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 needs all CSS files to be minified and compressed as it can save up to 121.4 kB or 85% of the original size.
Number of requests can be reduced by 58 (67%)
86
28
The browser has sent 86 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 15 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
rwe.cz
398 ms
www.rwe.cz
1339 ms
reset.css
238 ms
fonts.css
250 ms
basic.css
373 ms
contentmkt.css
495 ms
forms.css
252 ms
print.css
357 ms
lightbox.css
370 ms
jquery.js
739 ms
jqueryui.js
791 ms
basic.js
477 ms
flashdetect.js
384 ms
flashtml.js
384 ms
informace-o-odstavce-rwe-os.js
478 ms
mobiledetect.js
499 ms
close.png
128 ms
loading.gif
256 ms
prev.png
215 ms
next.png
255 ms
RWE_Prezentace_COT_web-min.png
256 ms
contentBg.png
157 ms
leftCL.jpg
363 ms
rightCL.jpg
155 ms
player_zaloha.jpg
247 ms
hpProductBoxBg.png
151 ms
hpProductHeaderArrows.png
150 ms
hpProductNG.png
244 ms
hpProductLinkArrows.png
252 ms
hpProductEl.png
254 ms
hpOfferBoxBg.png
383 ms
hpOfferBoxArrows.png
365 ms
buttonGreen.png
372 ms
hpOfferBoxButtonIcon.png
378 ms
loginBoxBg.png
381 ms
hpLoginBoxIcon.png
472 ms
hpLoginBoxFieldUsername.png
489 ms
hpLoginBoxFieldPass.png
498 ms
linksArrows.png
503 ms
rweheadline-mediumcondens-webfont.woff
654 ms
rweheadline-lightcondens-webfont.woff
619 ms
hpCustomerServicePhone.png
577 ms
hpCustomerServiceSkype.png
597 ms
hpCustomerServiceDivider.png
609 ms
hpCustomerServiceEmail.png
619 ms
hpCustomerCentersBoxBg.png
699 ms
hpCustomerCentersIcon.png
722 ms
buttonBlue.png
736 ms
hpGasAlertBoxBg.png
738 ms
hpGasAlertIcon.png
740 ms
hpGasAlertNumber.png
773 ms
hpNewsBox.png
818 ms
hpNewsBoxIcon.png
852 ms
hpNewsBoxDivider.png
863 ms
hpNewsItemArrows.png
864 ms
buttonOrange.png
867 ms
contentBottomShadow.png
899 ms
gtm.js
79 ms
conversion_async.js
21 ms
retargeting
224 ms
activity
180 ms
hmapxy.js
435 ms
integration
205 ms
fbevents.js
136 ms
;u2=;u3=;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;ord=8655097477603.704
72 ms
cpex_universal.js
243 ms
headerBg.png
812 ms
mainMenuBg.png
851 ms
smallMenuArrows.png
865 ms
companyCombo.png
860 ms
60 ms
88 ms
pixel
76 ms
83 ms
64 ms
searchSubmit.png
777 ms
rweLogo.png
803 ms
iconLock.png
830 ms
pageMenuBg.png
872 ms
106 ms
pixel
22 ms
match-result
10 ms
homeButton.png
785 ms
pageMenuDivider.png
776 ms
footerBg.png
775 ms
footerBoxDivider.png
795 ms
footerMenuArrows.png
821 ms
socialLinks.png
868 ms
buttonTop.png
791 ms
14 ms
pixel
20 ms
uuid.js
323 ms
38 ms
cm
162 ms
sync
11 ms
analytics.js
22 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
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
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
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
CS
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 does not match the claimed Czech 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 description is not detected on the main page of RWE. 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: