4.1 sec in total
677 ms
3.2 sec
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Visit conventioncologne.de now to see the best up-to-date Conventioncologne content for Germany and also check out these interesting facts you probably never knew about conventioncologne.de
Das offizielle Locationportal für Köln mit: Tagungshotels ✓ Veranstaltungszentren ✓ Eventlocations ✓ Eventdienstleistern ✓ und Rahmenprogrammen ✓ Schon seit 2008: im Auftrag der Stadt - kostenlose Ber...
Visit conventioncologne.deWe analyzed Conventioncologne.de page load time and found that the first response time was 677 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
conventioncologne.de performance score
name
value
score
weighting
Value3.1 s
46/100
10%
Value3.1 s
75/100
25%
Value5.1 s
61/100
10%
Value360 ms
72/100
30%
Value0
100/100
15%
Value7.0 s
53/100
10%
677 ms
207 ms
204 ms
204 ms
227 ms
Our browser made a total of 109 requests to load all elements on the main page. We found that 82% of them (89 requests) were addressed to the original Conventioncologne.de, 10% (11 requests) were made to F1-eu.readspeaker.com and 4% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (917 ms) belongs to the original domain Conventioncologne.de.
Page size can be reduced by 402.8 kB (50%)
810.0 kB
407.2 kB
In fact, the total size of Conventioncologne.de main page is 810.0 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. 50% of websites need less resources to load. Javascripts take 438.8 kB which makes up the majority of the site volume.
Potential reduce by 35.3 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. 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 35.3 kB or 78% of the original size.
Potential reduce by 17.7 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. Conventioncologne images are well optimized though.
Potential reduce by 291.8 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 291.8 kB or 67% of the original size.
Potential reduce by 58.0 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. Conventioncologne.de needs all CSS files to be minified and compressed as it can save up to 58.0 kB or 79% of the original size.
Number of requests can be reduced by 58 (55%)
105
47
The browser has sent 105 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Conventioncologne. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.
www.conventioncologne.de
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mootoolsv1.11.js
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shadowbox-2.0.js
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cookies.js
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efa_fontsize.js
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rgtabs.js
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rgtabs.css
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stylesheet_cfb52d5381.css
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brochures.css
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DatePicker.css
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main.css
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rgaccordion2.css
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readspeaker.css
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rgaccordion2.js
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DatePicker.js
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ReadSpeaker.js
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conventioncologne.de 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
[id] attributes on active, focusable elements are not unique
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 IDs are not unique
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
Form elements do not have associated labels
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
conventioncologne.de 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
conventioncologne.de 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
DE
DE
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Conventioncologne.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Conventioncologne.de 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.
conventioncologne.de
Open Graph description is not detected on the main page of Conventioncologne. 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: