D-nb.info Site Title

DNB, Katalog der Deutschen Nationalbibliothek

D-nb.info Test Results

D-nb.info Mobile Usability: 62/100

Quick overview:
Use legible font sizes
The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.
The following text fragments have a small font size. Increase the font size to make them more legible.
Kontakt renders only 4 pixels tall (11 CSS pixels).
...
Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target <a href="http://www.dnb…r/kontakt.html" class="header_1">Kontakt</a> is close to 1 other tap targets.
...
Configure the viewport
Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

D-nb.info Mobile Speed: 61/100

Quick overview:
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 14 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://portal.dnb.de/static/js/onLoadBody.js
...
Optimize CSS Delivery of the following:
https://portal.dnb.de/static/css/layout_2col_73.css
...
Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 131.7KiB (68% reduction).
Compressing https://portal.dnb.de/static/js/jquery-1.11.0.min.js could save 61.5KiB (65% reduction).
...
Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://d-nb.info/
...
Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 35.6KiB (40% reduction).
Minifying https://portal.dnb.de/static/js/jscalendar/calendar.js could save 16.8KiB (34% reduction).
...
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 5.4KiB (46% reduction).
Compressing https://portal.dnb.de/static/bilder/logo.gif could save 1.8KiB (39% reduction).
...
Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 1.6KiB (26% reduction).
Minifying https://portal.dnb.de/static/css/webservice.css could save 972B (28% reduction) after compression.
...
Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 684B (15% reduction).
Minifying https://portal.dnb.de/opac.htm;jsessionid=95002C9A5161DD7ACA1BB8AEC310783D.prod-worker0?view=redirect%3A%2Fopac.htm&dodServiceUrl=https%3A%2F%2Fportal.dnb.de%2Fdod could save 684B (15% reduction) after compression.

Similar tests
www.d-nb.com
www.d-nb.net
www.d-nb.org
www.d-nb.info
www.d-nb.biz
www.d-nb.us
www.d-nb.mobi
www.-nb.info
www.d-nb.info
www.x-nb.info
www.dx-nb.info
www.xd-nb.info
www.s-nb.info
www.ds-nb.info
www.sd-nb.info
www.e-nb.info
www.de-nb.info
www.ed-nb.info
www.r-nb.info
www.dr-nb.info
www.rd-nb.info
www.f-nb.info
www.df-nb.info
www.fd-nb.info
www.c-nb.info
www.dc-nb.info
www.cd-nb.info
www.dnb.info
www.d-b.info
www.d-bb.info
www.d-nbb.info
www.d-bnb.info
www.d-hb.info
www.d-nhb.info
www.d-hnb.info
www.d-jb.info
www.d-njb.info
www.d-jnb.info
www.d-mb.info
www.d-nmb.info
www.d-mnb.info
www.d-n.info
www.d-nv.info
www.d-nbv.info
www.d-nvb.info
www.d-ng.info
www.d-nbg.info
www.d-ngb.info
www.d-nh.info
www.d-nbh.info
www.d-nn.info
www.d-nbn.info
www.d-nnb.info
Last Tested:

This website uses cookies to ensure you get the best experience on our website. Learn more. Got it.