4.8 sec in total
1.2 sec
3.5 sec
200 ms
Welcome to kolb.ch homepage info - get ready to check Kolb best content right away, or after learning these important things about kolb.ch
Kolb is an alkoxylator that provides a wide range of defoamers, fatty alcohol ethoxylates, triglyceride ethoxylates, sorbitian esters, and more for wetting, emulsifying, low-foaming, solubilising, vis...
Visit kolb.chWe analyzed Kolb.ch page load time and found that the first response time was 1.2 sec and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
kolb.ch performance score
name
value
score
weighting
Value5.2 s
8/100
10%
Value6.9 s
7/100
25%
Value11.9 s
4/100
10%
Value1,610 ms
12/100
30%
Value0.001
100/100
15%
Value14.5 s
8/100
10%
1170 ms
557 ms
263 ms
745 ms
186 ms
Our browser made a total of 77 requests to load all elements on the main page. We found that 90% of them (69 requests) were addressed to the original Kolb.ch, 5% (4 requests) were made to Google-analytics.com and 3% (2 requests) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Kolb.ch.
Page size can be reduced by 577.0 kB (27%)
2.1 MB
1.5 MB
In fact, the total size of Kolb.ch main page is 2.1 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. 30% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.
Potential reduce by 27.2 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 27.2 kB or 77% of the original size.
Potential reduce by 71.0 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. Kolb images are well optimized though.
Potential reduce by 411.2 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 411.2 kB or 76% of the original size.
Potential reduce by 67.6 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. Kolb.ch needs all CSS files to be minified and compressed as it can save up to 67.6 kB or 88% of the original size.
Number of requests can be reduced by 46 (62%)
74
28
The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kolb. 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 as a result speed up the page load time.
kolb.ch
1170 ms
berechnet_211e2450bf8a0f48499f9557c2d0f8d7.css
557 ms
cycon.php
263 ms
prototype.js
745 ms
scriptaculous.js
186 ms
singleton.js
188 ms
system.js
278 ms
accordion.js
370 ms
dialog.js
279 ms
gui.js
441 ms
util_date.js
371 ms
DatePicker.js
568 ms
cookie.js
461 ms
livepipe.js
463 ms
window.js
714 ms
glossar.js
567 ms
slider.js
651 ms
lightview.js
760 ms
69358.js
75 ms
builder.js
98 ms
effects.js
283 ms
dragdrop.js
96 ms
controls.js
370 ms
slider.js
190 ms
sound.js
93 ms
Backroundimages_KLK.png
194 ms
incos-left.png
99 ms
logo.png
99 ms
hedingen-areal.png
558 ms
tanks-hedingen.png
489 ms
slider-02.jpg
456 ms
slider-03.jpg
484 ms
moerdik-areal.png
575 ms
tanks-moerdijk.png
666 ms
slider-01.jpg
641 ms
martine-uwe-rounded.png
673 ms
button-en-01.png
581 ms
brochures-rounded.png
653 ms
button-en-02.png
666 ms
banner_incos2016_330x200_Rectangular-show-logo_web.png
673 ms
button-en-03.png
732 ms
free_tickets.png
744 ms
footer_xing.png
758 ms
footer_linkedin.png
759 ms
footer_twitter.png
762 ms
footer_print.png
764 ms
gtm.js
57 ms
bg_header.png
812 ms
bg_suche.png
825 ms
lupe.png
840 ms
bg_schatten_mitte.png
840 ms
bg_weiss_70.png
843 ms
slider_control_left.png
846 ms
slider_control_right.png
902 ms
bg_schatten_unten.png
908 ms
ga.js
16 ms
trans.gif
903 ms
slider_paging_inaktiv.png
902 ms
slider_paging_aktiv.png
907 ms
prev.png
908 ms
topclose.png
964 ms
close_large.png
981 ms
close_small.png
996 ms
__utm.gif
15 ms
analytics.js
4 ms
collect
56 ms
collect
19 ms
loading.gif
947 ms
inner_slideshow_stop.png
949 ms
collect
38 ms
inner_prev.png
856 ms
inner_next.png
645 ms
controller_prev.png
637 ms
controller_slideshow_stop.png
649 ms
controller_next.png
98 ms
controller_slideshow_play.png
96 ms
controller_close.png
96 ms
kolb.ch 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
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
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
List items (<li>) are not contained within <ul> or <ol> parent elements.
kolb.ch 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
kolb.ch 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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kolb.ch 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 Kolb.ch 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.
kolb.ch
Open Graph description is not detected on the main page of Kolb. 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: