4.1 sec in total
298 ms
3.6 sec
220 ms
Click here to check amazing Digitale Bibliothek content. Otherwise, check out these important facts you probably never knew about digitale-bibliothek.de
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Visit digitale-bibliothek.deWe analyzed Digitale-bibliothek.de page load time and found that the first response time was 298 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
digitale-bibliothek.de performance score
name
value
score
weighting
Value4.0 s
24/100
10%
Value4.2 s
44/100
25%
Value5.5 s
55/100
10%
Value40 ms
100/100
30%
Value0
100/100
15%
Value5.0 s
76/100
10%
298 ms
301 ms
411 ms
302 ms
1183 ms
Our browser made a total of 51 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Digitale-bibliothek.de, 96% (49 requests) were made to Versand-as.de and 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Versand-as.de.
Page size can be reduced by 66.4 kB (25%)
260.4 kB
194.0 kB
In fact, the total size of Digitale-bibliothek.de main page is 260.4 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. 25% of websites need less resources to load. Images take 175.9 kB which makes up the majority of the site volume.
Potential reduce by 44.0 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 44.0 kB or 86% of the original size.
Potential reduce by 22.4 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, Digitale Bibliothek needs image optimization as it can save up to 22.4 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 0 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 12 (26%)
46
34
The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Digitale Bibliothek. 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 JavaScripts and as a result speed up the page load time.
digitale-bibliothek.de
298 ms
versand-as.de
301 ms
versand-as.de
411 ms
www.versand-as.de
302 ms
www.versand-as.de
1183 ms
cseo_css.php
248 ms
logo.png
298 ms
wk_icon.png
301 ms
Die-Renaissance_5646.jpg
318 ms
9783843005708.jpg
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9783843010689.jpg
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9783843002578.jpg
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top_product.png
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dl_106_0.jpg
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9783869516714.jpg
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dl_16_0.jpg
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9783869515281.jpg
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9783843007016.jpg
480 ms
head.min.js
504 ms
2000_0.jpg
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2001_0.jpg
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Erotische-Kunst_5639.jpg
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10000-Ansichtskarten-Deutschland-in-alten-Ansichten_5640.jpg
546 ms
Heinrich-Zille-Werke-und-Schriften_5641.jpg
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Geschichte-des-Hellenismus_5643.jpg
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Wilhelm-Busch-Gesammelte-Werke_5644.jpg
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100-englische-Klassiker-die-jeder-haben-muss_5645.jpg
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10000-Meisterwerke-der-Malerei_5618.jpg
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Nationalsozialismus-DB-Paket_5508.jpg
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dl_56_0.jpg
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sectionpad-bg.png
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submenueClosed.png
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pfeil.png
565 ms
randomProductsHeart2.png
578 ms
button_details.gif
626 ms
button_download_hint.jpg
631 ms
jquery.min.js
18 ms
jquery-migrate.min.js
399 ms
jquery.colorbox-min.js
396 ms
jquery.flexnav.min.js
444 ms
ajaxsuggest.js
445 ms
formsizecheck.js
483 ms
jquery.rating.pack.js
489 ms
responsiveslides.min.js
499 ms
xajax.min.js
510 ms
jquery-ui-1.10.3.custom.min.js
566 ms
xajax.js
546 ms
main.js
592 ms
digitale-bibliothek.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.
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
digitale-bibliothek.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
digitale-bibliothek.de SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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 Digitale-bibliothek.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 Digitale-bibliothek.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.
digitale-bibliothek.de
Open Graph description is not detected on the main page of Digitale Bibliothek. 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: