4.4 sec in total
1.1 sec
2.9 sec
373 ms
Visit kongresshaus.ch now to see the best up-to-date Kongresshaus content for Switzerland and also check out these interesting facts you probably never knew about kongresshaus.ch
Wiedereröffnung im Sommer 2021: Das moderne Veranstaltungszentrum liegt an bester Lage mitten in Zürich und bietet Raum für Events jeder Grösse.
Visit kongresshaus.chWe analyzed Kongresshaus.ch page load time and found that the first response time was 1.1 sec and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
kongresshaus.ch performance score
name
value
score
weighting
Value5.2 s
8/100
10%
Value21.0 s
0/100
25%
Value20.8 s
0/100
10%
Value8,750 ms
0/100
30%
Value0.15
76/100
15%
Value26.2 s
0/100
10%
1105 ms
497 ms
494 ms
581 ms
584 ms
Our browser made a total of 26 requests to load all elements on the main page. We found that all of those requests were addressed to Kongresshaus.ch and no external sources were called. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Kongresshaus.ch.
Page size can be reduced by 176.3 kB (24%)
750.2 kB
573.8 kB
In fact, the total size of Kongresshaus.ch main page is 750.2 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. 30% of websites need less resources to load. Images take 507.8 kB which makes up the majority of the site volume.
Potential reduce by 16.3 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 3.9 kB, which is 19% 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 16.3 kB or 78% of the original size.
Potential reduce by 2.5 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. Kongresshaus images are well optimized though.
Potential reduce by 125.3 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 125.3 kB or 69% of the original size.
Potential reduce by 32.3 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. Kongresshaus.ch needs all CSS files to be minified and compressed as it can save up to 32.3 kB or 82% of the original size.
Number of requests can be reduced by 8 (35%)
23
15
The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kongresshaus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
home.html
1105 ms
stylesheet_413990db01.css
497 ms
jquery.fancybox.css
494 ms
styles.css
581 ms
modernizr-2.6.2.min.js
584 ms
jquery-1.9.1.min.js
678 ms
jquery.cycle2.min.js
497 ms
jquery.fancybox.js
698 ms
plugins.js
497 ms
scripts.js
587 ms
stylesheet.css
95 ms
logo-kongresshaus-zuerich.png
105 ms
search-icon.png
105 ms
bgcont.png
106 ms
csm_Teaser_Feier_480a2db46c.jpg
317 ms
csm_Teaser_JMH_7699e24028.jpg
240 ms
csm_Teaser_TM_4e66eada42.jpg
243 ms
csm_Teaser_SC_50c5f3922f.jpg
371 ms
csm_teaser-mittendrin_c6d386e284.jpg
370 ms
csm_Teaser_Intermezzo_f69348d448.jpg
371 ms
csm_Teaser_MSC_5a36320177.jpg
333 ms
symbol-dropdown.png
336 ms
csm_urs-meier_d73b05dca6.jpg
409 ms
csm_Panorama_0915_b8df0ad26d.jpg
427 ms
at_sackers_gothic_medium-webfont.woff
404 ms
ATSackersHeavyGothic.woff
438 ms
kongresshaus.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
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
[role]s are not contained by their required parent element
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
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
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.
kongresshaus.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
Page has valid source maps
kongresshaus.ch 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
DE
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kongresshaus.ch can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it does not match the claimed English language. Our system also found out that Kongresshaus.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.
kongresshaus.ch
Open Graph description is not detected on the main page of Kongresshaus. 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: