3 sec in total
222 ms
2.6 sec
171 ms
Visit kolos.sk now to see the best up-to-date Kolos content and also check out these interesting facts you probably never knew about kolos.sk
Doručovanie neadresných a adresných zásielok v rámci celej Slovenskej republiky, špeciálne produkty doručovania, ktoré vám umožnia efektívne osloviť vašich zákazníkov. Neadresny mailing, Neadresne dor...
Visit kolos.skWe analyzed Kolos.sk page load time and found that the first response time was 222 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
kolos.sk performance score
name
value
score
weighting
Value2.4 s
69/100
10%
Value5.5 s
18/100
25%
Value4.0 s
81/100
10%
Value220 ms
88/100
30%
Value0.082
94/100
15%
Value7.2 s
50/100
10%
222 ms
101 ms
114 ms
223 ms
332 ms
Our browser made a total of 52 requests to load all elements on the main page. We found that 87% of them (45 requests) were addressed to the original Kolos.sk, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Static.hotjar.com. The less responsive or slowest element that took the longest time to load (831 ms) belongs to the original domain Kolos.sk.
Page size can be reduced by 54.5 kB (9%)
626.8 kB
572.3 kB
In fact, the total size of Kolos.sk main page is 626.8 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. Images take 488.4 kB which makes up the majority of the site volume.
Potential reduce by 17.8 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. 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 17.8 kB or 73% of the original size.
Potential reduce by 11.7 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. Kolos images are well optimized though.
Potential reduce by 21.0 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 21.0 kB or 20% of the original size.
Potential reduce by 4.0 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. Kolos.sk needs all CSS files to be minified and compressed as it can save up to 4.0 kB or 38% of the original size.
Number of requests can be reduced by 11 (22%)
51
40
The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kolos. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
delivery-services.html
222 ms
hotjar-480787.js
101 ms
_pure.css
114 ms
_screen.wysiwyg.css
223 ms
menu.css
332 ms
print.css
440 ms
WebResource.axd
450 ms
gdprcookiechoices.js
451 ms
jquery.min.js
33 ms
loader.js
828 ms
kolos.js
570 ms
modules.2472296d2d26f0040059.js
24 ms
kolos-logo-en.jpg
110 ms
partner-ecommerce-banner-en.jpg
478 ms
header-05-en.jpg
235 ms
header-01-en.jpg
231 ms
slide4-en.jpg
242 ms
header-06-en.jpg
324 ms
header-07-en.jpg
266 ms
partner-ecommerce-img.jpg
339 ms
neadresna.jpg
348 ms
contact-us.jpg
349 ms
envelope1.jpg
378 ms
servicemail.jpg
452 ms
sluzby-print.jpg
459 ms
directmarketing.jpg
460 ms
contentbrozura.jpg
461 ms
logo-dm.jpg
499 ms
logo-fann.jpg
627 ms
logo-mountfield.jpg
628 ms
logo-slovaciaenergy.jpg
630 ms
logo-tescoma.jpg
629 ms
logo-vetroplus.jpg
629 ms
icon-linkedin.gif
630 ms
alejtech-cms.gif
664 ms
main-bg.jpg
657 ms
client-zone.png
659 ms
icon09.gif
667 ms
icon07.gif
681 ms
icon05.gif
706 ms
icon08.gif
752 ms
icon07-small.jpg
762 ms
icon06.gif
766 ms
icon-brozura.jpg
778 ms
pdf.gif
793 ms
li.gif
818 ms
ex.gif
831 ms
analytics.js
35 ms
arrow-prev.gif
467 ms
arrow-next.gif
472 ms
collect
14 ms
js
71 ms
kolos.sk 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
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
Form elements do not have associated labels
Links do not have a discernible name
kolos.sk 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
kolos.sk SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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 doesn't use legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kolos.sk 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 Kolos.sk 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.
kolos.sk
Open Graph description is not detected on the main page of Kolos. 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: