6.4 sec in total
1 sec
4.7 sec
660 ms
Visit duna.tco.cz now to see the best up-to-date Duna Tco content and also check out these interesting facts you probably never knew about duna.tco.cz
Baví nás vývoj smysluplných e-commerce řešení a zajišťujeme jejich provoz a rozvoj pro reálné výsledky.
Visit duna.tco.czWe analyzed Duna.tco.cz page load time and found that the first response time was 1 sec and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
duna.tco.cz performance score
name
value
score
weighting
Value4.1 s
21/100
10%
Value4.1 s
46/100
25%
Value10.4 s
8/100
10%
Value90 ms
98/100
30%
Value0.004
100/100
15%
Value10.6 s
23/100
10%
1043 ms
463 ms
854 ms
125 ms
727 ms
Our browser made a total of 55 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Duna.tco.cz, 78% (43 requests) were made to Esmedia.cz and 4% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Esmedia.cz.
Page size can be reduced by 392.2 kB (27%)
1.5 MB
1.1 MB
In fact, the total size of Duna.tco.cz main page is 1.5 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. 35% of websites need less resources to load. Images take 938.2 kB which makes up the majority of the site volume.
Potential reduce by 10.8 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 1.9 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 10.8 kB or 74% of the original size.
Potential reduce by 14.0 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. Duna Tco images are well optimized though.
Potential reduce by 240.0 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 240.0 kB or 69% of the original size.
Potential reduce by 127.4 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. Duna.tco.cz needs all CSS files to be minified and compressed as it can save up to 127.4 kB or 82% of the original size.
Number of requests can be reduced by 7 (15%)
48
41
The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Duna Tco. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
duna.tco.cz
1043 ms
www.esmedia.cz
463 ms
esmedia.cz
854 ms
style.css
125 ms
script.js
727 ms
layout.css
736 ms
font-awesome.min.css
457 ms
css
56 ms
css
67 ms
analytics.js
145 ms
hotjar-132307.js
574 ms
logo.gif
166 ms
sprite.png
773 ms
pocitac.jpg
267 ms
webova-reseni.gif
287 ms
internet-marketing.gif
383 ms
eshopy-aplikace.gif
391 ms
socialni-site.gif
395 ms
esmedia-team.jpg
1387 ms
albert.gif
408 ms
bebe.gif
497 ms
bramac.gif
511 ms
gemo.gif
514 ms
grundfos.gif
528 ms
hafele.gif
615 ms
hellermantyton.gif
630 ms
husky.gif
634 ms
kofola.gif
651 ms
litovel.gif
724 ms
mapei.gif
749 ms
monroe.gif
754 ms
nordblanc.gif
771 ms
olma.gif
843 ms
olomouc.gif
869 ms
ondrasovka.gif
877 ms
presbeton.gif
889 ms
psg.gif
894 ms
rajec.gif
954 ms
s602.gif
986 ms
stomix.gif
1005 ms
strabag.gif
1012 ms
tenneco.gif
1014 ms
walker.gif
1067 ms
ytong.gif
1106 ms
udg.png
1126 ms
webtop100.png
1135 ms
apek.png
1031 ms
yAwCax9lZJpCW8yKiUNSsw.ttf
40 ms
B3D1Mm0RtdJgT3d4ueirDg.ttf
51 ms
collect
19 ms
collect
57 ms
fontawesome-webfont.woff
1250 ms
modules-043c1e6abe660c48857202e419ff9d8a.js
35 ms
visit-data
269 ms
7d96b888c43d4a99bc502367edb8ef10
98 ms
duna.tco.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.
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
Image elements do not have [alt] attributes
Links do not have a discernible name
duna.tco.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
Browser errors were logged to the console
duna.tco.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
CS
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Duna.tco.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it does not match the claimed English language. Our system also found out that Duna.tco.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.
duna.tco.cz
Open Graph data is detected on the main page of Duna Tco. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: