27.5 sec in total
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کانون گسترش و آموزش زبان آلمانی دنا | Dena Language Institute | اصفهان خیابان توحید خیابان شهید منصور موحدی کوچه 6Visit dena-institut.de
We analyzed Dena-institut.de page load time and found that the first response time was 581 ms and then it took 26.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
dena-institut.de performance score
Our browser made a total of 23 requests to load all elements on the main page. We found that 96% of them (22 requests) were addressed to the original Dena-institut.de, 4% (1 request) were made to S1.mediaad.org. The less responsive or slowest element that took the longest time to load (20.8 sec) belongs to the original domain Dena-institut.de.
Page size can be reduced by 62.3 kB (30%)
In fact, the total size of Dena-institut.de main page is 209.9 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 141.2 kB which makes up the majority of the site volume.
Potential reduce by 43.1 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 22.7 kB, which is 48% 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 43.1 kB or 91% of the original size.
Potential reduce by 4.9 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. Dena Institut images are well optimized though.
Potential reduce by 14.3 kB
We found no issues to fix!
dena-institut.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.
[id] attributes on active, focusable elements 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.
Image elements do not have [alt] attributes
Links do not have a discernible name
dena-institut.de best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
Browser errors were logged to the console
dena-institut.de SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Image elements do not have [alt] attributes
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 Dena-institut.de can be misinterpreted by Google and other search engines. Our service has detected that Persian is used on the page, and it does not match the claimed English language. Our system also found out that Dena-institut.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.
Open Graph description is not detected on the main page of Dena Institut. 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: