6.7 sec in total
352 ms
6 sec
340 ms
Click here to check amazing Extrem Audio content. Otherwise, check out these important facts you probably never knew about extrem-audio.cz
Extrem Audio
Visit extrem-audio.czWe analyzed Extrem-audio.cz page load time and found that the first response time was 352 ms and then it took 6.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
extrem-audio.cz performance score
name
value
score
weighting
Value4.7 s
12/100
10%
Value5.8 s
15/100
25%
Value7.7 s
24/100
10%
Value260 ms
83/100
30%
Value0.019
100/100
15%
Value8.3 s
39/100
10%
352 ms
3885 ms
225 ms
231 ms
236 ms
Our browser made a total of 50 requests to load all elements on the main page. We found that 72% of them (36 requests) were addressed to the original Extrem-audio.cz, 16% (8 requests) were made to Media.extrem-audio.cz and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.9 sec) belongs to the original domain Extrem-audio.cz.
Page size can be reduced by 359.2 kB (42%)
849.6 kB
490.4 kB
In fact, the total size of Extrem-audio.cz main page is 849.6 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. 40% of websites need less resources to load. Javascripts take 382.2 kB which makes up the majority of the site volume.
Potential reduce by 27.1 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 27.1 kB or 60% of the original size.
Potential reduce by 11.8 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. Extrem Audio images are well optimized though.
Potential reduce by 260.4 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 260.4 kB or 68% of the original size.
Potential reduce by 60.0 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. Extrem-audio.cz needs all CSS files to be minified and compressed as it can save up to 60.0 kB or 82% of the original size.
Number of requests can be reduced by 18 (38%)
48
30
The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Extrem Audio. 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 5 to 1 for CSS and as a result speed up the page load time.
extrem-audio.cz
352 ms
www.extrem-audio.cz
3885 ms
reset.min.css
225 ms
default.css
231 ms
colors.css
236 ms
custom.css
238 ms
jquery.slidenotice.css
240 ms
jquery.min.js
459 ms
netteForms.js
455 ms
jquery-ui.min.js
697 ms
MyLightBox.js
480 ms
ContentSlider.js
478 ms
ContentScroller.js
477 ms
jquery.slidenotice.js
686 ms
global.js
690 ms
jquery.czone.js
688 ms
jquery.czone.customerDetailForm.js
733 ms
jquery.czone.autocomplete.js
734 ms
jquery.czone.loader.js
909 ms
jquery.czone.slider.js
936 ms
roboto-regular-webfont.woff
363 ms
logo.png
642 ms
banner_jbl.jpg
714 ms
kenwood-autoradio-cd-mp3-usb-zelene-podsv.-1x-pre-out!-1449654987.png
665 ms
kenwood-autoradio-cd-mp3-usb-var.-podsv.-2x-pre-out-do!-1449655790.png
539 ms
ground-zero-gzdm-3700-ab-1444482798.jpeg
519 ms
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517 ms
ohv185hd.jpg
789 ms
product_54169_1.jpg
770 ms
bg_btm.png
153 ms
bg_top.png
242 ms
bg.jpg
707 ms
sdk.js
89 ms
ico_user.png
241 ms
bg_head.jpg
473 ms
ico_search.png
319 ms
ico_cart.png
340 ms
hbg_cats.png
460 ms
ico_submenu-plus-gray.png
472 ms
ico_arr-more.png
554 ms
bg_prefoot.png
561 ms
ico_fb.png
697 ms
ga.js
37 ms
ico_close.png
625 ms
roboto-bold-webfont.woff
739 ms
roboto-light-webfont.woff
824 ms
__utm.gif
36 ms
180 ms
xd_arbiter.php
72 ms
xd_arbiter.php
134 ms
extrem-audio.cz 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
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Links do not have a discernible name
extrem-audio.cz 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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
extrem-audio.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
Tap targets are not sized appropriately
N/A
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Extrem-audio.cz can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Extrem-audio.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.
extrem-audio.cz
Open Graph description is not detected on the main page of Extrem Audio. 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: