9.5 sec in total
172 ms
8.7 sec
605 ms
Visit kataloge.com now to see the best up-to-date Kataloge content and also check out these interesting facts you probably never knew about kataloge.com
Das ZVAB - Zentrales Verzeichnis Antiquarischer Bücher - ist seit 1996 das Online-Antiquariat für deutschsprachige Titel. Tausende von professionellen Antiquaren bieten auf ZVAB.com Millionen antiquar...
Visit kataloge.comWe analyzed Kataloge.com page load time and found that the first response time was 172 ms and then it took 9.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
kataloge.com performance score
name
value
score
weighting
Value1.7 s
92/100
10%
Value5.6 s
17/100
25%
Value2.8 s
96/100
10%
Value900 ms
31/100
30%
Value0.004
100/100
15%
Value6.6 s
57/100
10%
172 ms
179 ms
149 ms
155 ms
225 ms
Our browser made a total of 62 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Kataloge.com, 90% (56 requests) were made to Zvab.com and 3% (2 requests) were made to Googleadservices.com. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Zvab.com.
Page size can be reduced by 329.5 kB (20%)
1.7 MB
1.4 MB
In fact, the total size of Kataloge.com main page is 1.7 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. 25% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.
Potential reduce by 55.6 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 16.1 kB, which is 25% 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 55.6 kB or 85% of the original size.
Potential reduce by 14.0 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. Kataloge images are well optimized though.
Potential reduce by 163.1 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 163.1 kB or 63% of the original size.
Potential reduce by 96.9 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. Kataloge.com needs all CSS files to be minified and compressed as it can save up to 96.9 kB or 82% of the original size.
Number of requests can be reduced by 20 (34%)
58
38
The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kataloge. 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 4 to 1 for CSS and as a result speed up the page load time.
kataloge.com
172 ms
www.zvab.com
179 ms
pageload.js
149 ms
responsive.js
155 ms
zvab.css
225 ms
zvab-gateway.css
161 ms
sn.css
160 ms
sntemplate.css
164 ms
eluminate_zvab.js
299 ms
techprops.js
307 ms
cmdatatagutils.inc
308 ms
abe.js
532 ms
conversion.js
58 ms
mustache.min.js
369 ms
slick.min.js
370 ms
homepage.js
444 ms
sn.min2.js
446 ms
sntemplate2.js
454 ms
avatar-unterwegs.png
293 ms
loewenzahn.png
433 ms
zvab-martina.png
429 ms
kueken.jpg
579 ms
zvab-kristina.png
429 ms
ostern-kinderbuch.jpg
668 ms
zvab-valerie.png
447 ms
hasenkanone.jpg
721 ms
zvab-fabian.png
576 ms
ostern.jpg
724 ms
zvab-udo.png
596 ms
kuekentennis.jpg
949 ms
zvab-larissa.png
725 ms
simplicissimus.jpg
890 ms
scherenschnitt.jpg
962 ms
zvab-jennifer.png
873 ms
fixfoxi.jpg
1016 ms
zvab-robert.png
877 ms
rabatte.png
1309 ms
termine.jpg
1027 ms
footer-logo-zvab.gif
1038 ms
zvab-logo.gif
1010 ms
abe-sprite.png
1086 ms
unterwegs-berlin-3.jpg
1818 ms
umberto-eco.png
1297 ms
circle-right.svg
1088 ms
archiv.png
1460 ms
harper-lee.png
1456 ms
story-osterpostkarten.jpg
1462 ms
signierte-buecher.jpg
1399 ms
slash-tile-bg.png
1563 ms
xylothek-story-tile.jpg
1761 ms
feature-tile-berlindale2.jpg
1649 ms
icon-twitter.png
1503 ms
icon-facebook.png
1494 ms
at.png
1710 ms
124 ms
arrow-left.png
1437 ms
arrow-right.png
1436 ms
loading.gif
1579 ms
33 ms
37 ms
cm
72 ms
timer.gif
153 ms
kataloge.com accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-hidden="true"] elements contain focusable descendents
[aria-*] attributes are not valid or misspelled
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
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.
kataloge.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
kataloge.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
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
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kataloge.com 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 Kataloge.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
kataloge.com
Open Graph description is not detected on the main page of Kataloge. 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: