14.6 sec in total
389 ms
13.1 sec
1.1 sec
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.deWe analyzed D-nb.de page load time and found that the first response time was 389 ms and then it took 14.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
d-nb.de performance score
name
value
score
weighting
Value6.7 s
2/100
10%
Value32.5 s
0/100
25%
Value25.7 s
0/100
10%
Value930 ms
30/100
30%
Value0.713
7/100
15%
Value33.9 s
0/100
10%
389 ms
776 ms
425 ms
307 ms
6277 ms
Our browser made a total of 69 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original D-nb.de, 96% (66 requests) were made to Dnb.de and 1% (1 request) were made to Data-8ec206415a.dnb.de. The less responsive or slowest element that took the longest time to load (6.3 sec) relates to the external source Dnb.de.
Page size can be reduced by 82.9 kB (85%)
97.6 kB
14.7 kB
In fact, the total size of D-nb.de main page is 97.6 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. 60% of websites need less resources to load. HTML takes 97.3 kB which makes up the majority of the site volume.
Potential reduce by 82.9 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 21.9 kB, which is 23% 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 82.9 kB or 85% of the original size.
Potential reduce by 12 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.
Number of requests can be reduced by 21 (39%)
54
33
The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DNB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for CSS and as a result speed up the page load time.
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d-nb.de accessibility score
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.
d-nb.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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
d-nb.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
DE
DE
UTF-8
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.
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d-nb.de
Open Graph data is detected on the main page of DNB. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: