7 sec in total
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We analyzed Mieterverein-koeln.de page load time and found that the first response time was 356 ms and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
mieterverein-koeln.de performance score
Our browser made a total of 67 requests to load all elements on the main page. We found that 42% of them (28 requests) were addressed to the original Mieterverein-koeln.de, 43% (29 requests) were made to Mieterverein.webvanilla2.de and 12% (8 requests) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (4.9 sec) relates to the external source Mieterverein.webvanilla2.de.
Page size can be reduced by 102.3 kB (20%)
In fact, the total size of Mieterverein-koeln.de main page is 518.7 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 382.4 kB which makes up the majority of the site volume.
Potential reduce by 55.6 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 55.6 kB or 83% of the original size.
Potential reduce by 11.8 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. Mieterverein Koeln images are well optimized though.
Potential reduce by 26.4 kB
Potential reduce by 8.5 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. Mieterverein-koeln.de needs all CSS files to be minified and compressed as it can save up to 8.5 kB or 84% of the original size.
Number of requests can be reduced by 29 (45%)
mieterverein-koeln.de accessibility score
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
These are opportunities to improve keyboard navigation in your application.
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.
Form elements do not have associated labels
Links do not have a discernible name
mieterverein-koeln.de best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
mieterverein-koeln.de SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
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/).
Document uses legible font sizes
Tap targets are not sized appropriately
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Mieterverein-koeln.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Mieterverein-koeln.de main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
Open Graph description is not detected on the main page of Mieterverein Koeln. 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: