5.4 sec in total
Visit d-nb.de now to see the best up-to-date DNB content for Germany and also check out these interesting facts you probably never knew about d-nb.de
Die Deutsche Nationalbibliothek ist die zentrale Archivbibliothek Deutschlands.Visit d-nb.de
We analyzed D-nb.de page load time and found that the first response time was 334 ms and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
d-nb.de performance score
Our browser made a total of 31 requests to load all elements on the main page. We found that 6% of them (2 requests) were addressed to the original D-nb.de, 74% (23 requests) were made to Dnb.de and 13% (4 requests) were made to Etracker.de. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain D-nb.de.
Page size can be reduced by 1.0 MB (65%)
Potential reduce by 21.4 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 21.4 kB or 74% of the original size.
Potential reduce by 18.5 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. DNB images are well optimized though.
Potential reduce by 953.5 kB
Potential reduce by 22.7 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. D-nb.de needs all CSS files to be minified and compressed as it can save up to 22.7 kB or 87% of the original size.
Number of requests can be reduced by 12 (43%)
d-nb.de accessibility score
These items highlight common accessibility best practices.
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
d-nb.de best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
Serves images with low resolution
d-nb.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
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise D-nb.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 D-nb.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 DNB. 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: