5.1 sec in total
1.7 sec
3 sec
433 ms
Visit dvt-hannover.de now to see the best up-to-date DVT Hannover content for Germany and also check out these interesting facts you probably never knew about dvt-hannover.de
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Visit dvt-hannover.deWe analyzed Dvt-hannover.de page load time and found that the first response time was 1.7 sec and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
dvt-hannover.de performance score
name
value
score
weighting
Value4.5 s
14/100
10%
Value13.3 s
0/100
25%
Value9.3 s
12/100
10%
Value1,620 ms
12/100
30%
Value0
100/100
15%
Value13.6 s
11/100
10%
1707 ms
284 ms
192 ms
193 ms
189 ms
Our browser made a total of 35 requests to load all elements on the main page. We found that 91% of them (32 requests) were addressed to the original Dvt-hannover.de, 6% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Dvt-braunschweig.de. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Dvt-hannover.de.
Page size can be reduced by 36.1 kB (16%)
230.9 kB
194.8 kB
In fact, the total size of Dvt-hannover.de main page is 230.9 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. 15% of websites need less resources to load. Images take 168.7 kB which makes up the majority of the site volume.
Potential reduce by 11.0 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 11.0 kB or 72% of the original size.
Potential reduce by 1.1 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. DVT Hannover images are well optimized though.
Potential reduce by 34 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 24.0 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. Dvt-hannover.de needs all CSS files to be minified and compressed as it can save up to 24.0 kB or 81% of the original size.
Number of requests can be reduced by 18 (55%)
33
15
The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DVT Hannover. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for CSS and as a result speed up the page load time.
dvt-hannover.de
1707 ms
stylesheet.css
284 ms
stylesheet.css
192 ms
stylesheet.css
193 ms
stylesheet.css
189 ms
stylesheet.css
192 ms
stylesheet.css
359 ms
stylesheet.css
374 ms
stylesheet.css
372 ms
stylesheet.css
373 ms
style.css
187 ms
advancedtoc.css
185 ms
level1.css
186 ms
level2.css
262 ms
level3.css
275 ms
ga.js
5 ms
bg_site.jpg
369 ms
__utm.gif
31 ms
bg_content.gif
94 ms
header.jpg
460 ms
h1high.gif
187 ms
h1low.gif
186 ms
h1lowsub.gif
186 ms
dvt_mini.gif
277 ms
han_01.jpg
459 ms
kinder1.jpg
643 ms
ind_04.jpg
459 ms
han_08_k.jpg
551 ms
sifu_christo2.jpg
627 ms
Frauentraining4klein.jpg
731 ms
bg_news.jpg
642 ms
bg_news_2.jpg
641 ms
footer_news.jpg
736 ms
bg_footer.jpg
812 ms
nachoben.gif
824 ms
dvt-hannover.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
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.
Impact
Issue
Links do not have a discernible name
dvt-hannover.de 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
dvt-hannover.de 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
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dvt-hannover.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 Dvt-hannover.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.
dvt-hannover.de
Open Graph description is not detected on the main page of DVT Hannover. 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: