5.5 sec in total
399 ms
4.9 sec
192 ms
Welcome to slub-dresden.de homepage info - get ready to check SLUB Dresden best content for Germany right away, or after learning these important things about slub-dresden.de
Visit slub-dresden.deWe analyzed Slub-dresden.de page load time and found that the first response time was 399 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.
slub-dresden.de performance score
name
value
score
weighting
Value3.0 s
48/100
10%
Value6.2 s
12/100
25%
Value5.3 s
58/100
10%
Value1,190 ms
21/100
30%
Value0.001
100/100
15%
Value9.0 s
34/100
10%
399 ms
105 ms
202 ms
205 ms
216 ms
Our browser made a total of 57 requests to load all elements on the main page. We found that 96% of them (55 requests) were addressed to the original Slub-dresden.de, 2% (1 request) were made to Dbspixel.hbz-nrw.de and 2% (1 request) were made to Piwik.slub-dresden.de. The less responsive or slowest element that took the longest time to load (894 ms) belongs to the original domain Slub-dresden.de.
Page size can be reduced by 646.7 kB (50%)
1.3 MB
656.1 kB
In fact, the total size of Slub-dresden.de main page is 1.3 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. Images take 643.3 kB which makes up the majority of the site volume.
Potential reduce by 27.5 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 27.5 kB or 79% of the original size.
Potential reduce by 157.4 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. Obviously, SLUB Dresden needs image optimization as it can save up to 157.4 kB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 285.0 kB
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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 285.0 kB or 69% of the original size.
Potential reduce by 176.8 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. Slub-dresden.de needs all CSS files to be minified and compressed as it can save up to 176.8 kB or 84% of the original size.
Number of requests can be reduced by 29 (52%)
56
27
The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SLUB Dresden. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
399 ms
news-basic.css
105 ms
stylesheet_270397f1a2.css
202 ms
custom-bootstrap.css
205 ms
styles.css
216 ms
blog.css
207 ms
jquery.fancybox-1.3.4.css
210 ms
slub-event-basic.css
213 ms
jquery-1.11.0.min.js
506 ms
jquery-migrate-1.2.1.min.js
304 ms
jquery.easing.js
306 ms
jquery.dimensions.js
307 ms
jquery.tooltip.pack.js
307 ms
jquery.fancybox-1.3.4.pack.js
308 ms
jquery.hp.basic.js
405 ms
custom-bootstrap.js
407 ms
jquery.cookie.min.js
408 ms
slubsemantics.js
621 ms
count
294 ms
navbarbg.png
305 ms
header_line.png
104 ms
toolsbg.png
102 ms
plmIcons.png
103 ms
flags.png
104 ms
slublogo.png
176 ms
navact.png
200 ms
navTriangle.png
205 ms
subnavbg.png
204 ms
subnavends.png
206 ms
searchbtn.png
276 ms
searchreset.png
300 ms
advsearch_linkicon.png
306 ms
searchremove.png
307 ms
main_small.jpg
306 ms
searchbar_switchicon.png
378 ms
listbullets.png
400 ms
csm_Startseiten-Teaser_Musikjubilaeum_c0de1de124.jpg
402 ms
teaserfwd.png
406 ms
csm_arthistoricum-net-teaser_d3c236e4ca.png
407 ms
csm_slubappteaser2014_f50838c990.jpg
508 ms
csm_wissensbar_01_c5f1a54bd9.jpg
680 ms
csm_teaser_makerspace_18ca4032b7.png
499 ms
csm_Saxonicum-1_9d18169ee5.jpg
627 ms
slub-beta-header-logo.svg
509 ms
slubloglabelhome.png
513 ms
slublognosehome.png
600 ms
h3toplink.png
627 ms
hpSocialIcons.png
627 ms
footerbg.png
628 ms
footnet.png
894 ms
footnavbg.png
703 ms
footnavend.png
708 ms
piwik.js
548 ms
beta-icon.svg
104 ms
close-icon.svg
107 ms
info-arrow.svg
155 ms
searchdropdownBtn.png
182 ms
slub-dresden.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
slub-dresden.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
General
Impact
Issue
Detected JavaScript libraries
slub-dresden.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
DE
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Slub-dresden.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 Slub-dresden.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.
slub-dresden.de
Open Graph description is not detected on the main page of SLUB Dresden. 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: