9.7 sec in total
272 ms
8.9 sec
538 ms
Click here to check amazing Zerex content for Czech Republic. Otherwise, check out these important facts you probably never knew about zerex.cz
Zerex- oblíbené doplňky výživy, vitamíny a produkty pro zdraví. Zerex - Zdraví nás sbližuje.
Visit zerex.czWe analyzed Zerex.cz page load time and found that the first response time was 272 ms and then it took 9.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
zerex.cz performance score
name
value
score
weighting
Value4.1 s
22/100
10%
Value12.8 s
0/100
25%
Value10.6 s
7/100
10%
Value1,920 ms
8/100
30%
Value0.633
9/100
15%
Value12.2 s
15/100
10%
272 ms
1898 ms
247 ms
286 ms
252 ms
Our browser made a total of 103 requests to load all elements on the main page. We found that 55% of them (57 requests) were addressed to the original Zerex.cz, 9% (9 requests) were made to Cdnjs.cloudflare.com and 6% (6 requests) were made to Api.exponea.com. The less responsive or slowest element that took the longest time to load (3.8 sec) belongs to the original domain Zerex.cz.
Page size can be reduced by 795.4 kB (23%)
3.4 MB
2.6 MB
In fact, the total size of Zerex.cz main page is 3.4 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.0 MB which makes up the majority of the site volume.
Potential reduce by 177.5 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. This page needs HTML code to be minified as it can gain 27.5 kB, which is 13% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 177.5 kB or 82% of the original size.
Potential reduce by 585.5 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, Zerex needs image optimization as it can save up to 585.5 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 27.9 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 27.9 kB or 15% of the original size.
Potential reduce by 4.6 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. Zerex.cz needs all CSS files to be minified and compressed as it can save up to 4.6 kB or 11% of the original size.
Number of requests can be reduced by 44 (45%)
97
53
The browser has sent 97 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zerex. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
zerex.cz
272 ms
zerex.cz
1898 ms
jquery-ui.css
247 ms
bootstrap.min.css
286 ms
lightbox.min.css
252 ms
owl.carousel.css
630 ms
animate.css
213 ms
jquery-3.4.1.min.js
284 ms
bootstrap.min.js
361 ms
owl.carousel.js
249 ms
owl.autoplay.js
243 ms
ScrollMagic.js
1036 ms
all.min.css
614 ms
simple-line-icons.css
281 ms
css
320 ms
custom-style.css
280 ms
stripe-custom.css
344 ms
jquery.min.js
343 ms
jquery-ui.min.js
388 ms
chosen.jquery.min.js
378 ms
lightbox.min.js
363 ms
LBX-237689.js
387 ms
email-decode.min.js
200 ms
owl.carousel.js
889 ms
feather.min.js
216 ms
216 ms
packetaWidget.js
885 ms
gtm.js
398 ms
RKxqmeA3iKKvB1goqS4L4NV5dBk8nNjcw9IxKzB4.png
457 ms
phone-call.svg
821 ms
cart.svg
832 ms
shipping.svg
473 ms
logo.svg
475 ms
arrow.svg
1995 ms
wSp28DfrR0lzPSEBoUlbgrKvqilJ6ystPtg5YnIj.svg
470 ms
new_search.svg
823 ms
new_cart.svg
841 ms
new_profile.svg
1963 ms
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head.png
2489 ms
blue_check.svg
2611 ms
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3162 ms
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v1Vfx5wUHIudzRKZSD4eDtxfEYOowu1SE8xJ1dJZ.jpg
3279 ms
autocomplete.js
335 ms
autocomplete.css
304 ms
zerex.js
772 ms
uQjBp5UekkOGBCB11CBLZk0TjE8HQsbCJU8laB55.svg
3154 ms
nyiKDZ3wwy6kq7RaxVg1QzjQi5J2FKIyQWWbjwnv.svg
3209 ms
fa-solid-900.woff
3829 ms
cookieconsent.min.css
2016 ms
cookieconsent.min.js
2099 ms
analytics.js
194 ms
fbevents.js
165 ms
exponea.min.js
500 ms
fa-regular-400.woff
3451 ms
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JqjxDv7CctnJHxrOTTXBrhww0uSC7Qy3Mvyb611a.svg
3451 ms
search.js
342 ms
identity.js
267 ms
953362952207659
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collect
127 ms
collect
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collect
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3376 ms
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bounce
1120 ms
bundle
1245 ms
bulk
638 ms
show
296 ms
show
297 ms
trending_queries
683 ms
1678714172393578
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prev.png
169 ms
m-outer-3bb4653b4e01a7bee882da31a8e9fb9b.html
123 ms
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789 ms
next.png
184 ms
loading.gif
183 ms
close.png
183 ms
m-outer-f16ceb8232448271be52ec373a869f9c.js
158 ms
inner.html
165 ms
zerex.cz
1810 ms
bulk
94 ms
api.luigisbox.com
240 ms
zerex.cz accessibility score
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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
zerex.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
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
zerex.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
Tap targets are not sized appropriately
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zerex.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Zerex.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.
zerex.cz
Open Graph data is detected on the main page of Zerex. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: