5.4 sec in total
331 ms
4.7 sec
381 ms
Welcome to katharineum.de homepage info - get ready to check Katharineum best content for Germany right away, or after learning these important things about katharineum.de
Auf der offiziellen Website des Katharineums zu Lübeck finden Sie aktuelle Termine, Artikel und Fotos aus dem Schulleben, das Leitbild der Schule, wichtige Dokumente und Formulare zum Herunterladen un...
Visit katharineum.deWe analyzed Katharineum.de page load time and found that the first response time was 331 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.
katharineum.de performance score
name
value
score
weighting
Value5.9 s
4/100
10%
Value33.5 s
0/100
25%
Value17.1 s
0/100
10%
Value7,990 ms
0/100
30%
Value0.367
29/100
15%
Value41.7 s
0/100
10%
331 ms
1732 ms
206 ms
393 ms
305 ms
Our browser made a total of 52 requests to load all elements on the main page. We found that all of those requests were addressed to Katharineum.de and no external sources were called. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Katharineum.de.
Page size can be reduced by 122.5 kB (22%)
566.3 kB
443.8 kB
In fact, the total size of Katharineum.de main page is 566.3 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. 20% of websites need less resources to load. Images take 432.1 kB which makes up the majority of the site volume.
Potential reduce by 115.2 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 31.4 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 115.2 kB or 86% of the original size.
Potential reduce by 7.3 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. Katharineum images are well optimized though.
Number of requests can be reduced by 37 (76%)
49
12
The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Katharineum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 31 to 1 for CSS and as a result speed up the page load time.
katharineum.de
331 ms
www.katharineum.de
1732 ms
reset.css
206 ms
base.css
393 ms
public.css
305 ms
collective.js.jqueryui.custom.min.css
508 ms
columns.css
225 ms
authoring.css
393 ms
portlets.css
350 ms
controlpanel.css
404 ms
tinymce.css
449 ms
mobile.css
500 ms
forms.css
607 ms
dropdown-menu.css
603 ms
discussion.css
614 ms
solgema_contextualcontentmenu.css
649 ms
ploneCustom.css
661 ms
vplan.css
715 ms
frontpage.css
711 ms
ploneCustomNew.css
721 ms
jquery.autocomplete.css
720 ms
contenttree.css
776 ms
print.css
686 ms
styles.css
1400 ms
event.css
942 ms
++resource++carousel.css
1211 ms
++resource++plone.app.jquerytools.overlays.css
990 ms
++resource++plone.app.jquerytools.dateinput.css
1274 ms
fullcalendar.css
1565 ms
plonebooking_styles.css
1490 ms
easynewsletter.css
1399 ms
slimbox2.css
1395 ms
++resource++collective.js.colorpicker.css
1397 ms
resourceplone.app.jquery-cachekey-d0203bedc9fe41fc30e94ee5e6fe874d.js
2156 ms
webmail-cachekey-e3902fbed32fa4d810255feb486a2622.js
1593 ms
resourceplone.app.eventevent-cachekey-c9334186e5a2bae00d97b23b38cd9d28.js
1385 ms
resourceplone.app.event.portlet_calendar-cachekey-286e7d8d607d3edb75caf388fa2983cf.js
1397 ms
resourcedropdown-menu-cachekey-339031c091e35e99088ed218a541270c.js
1351 ms
collective.js.jqueryui.custom.min-cachekey-d7103adad5b7a3c22cb206dbe5c3eae5.js
2060 ms
slimbox2-cachekey-48dced3272082193615bfbb0e6326444.js
1374 ms
resourcecollective.js.colorpicker.jseye-cachekey-28eac489fcaf287e740e864db3c38593.js
1543 ms
schatten.png
162 ms
logo.png
138 ms
image
608 ms
image
335 ms
image
619 ms
kulturHL_klein.jpg
209 ms
uni.jpg
200 ms
hanse-trifft-humboldt.jpg
527 ms
vorwerkerdiakonie.jpg
302 ms
spinner.gif
344 ms
fullcalendar.print.css
107 ms
katharineum.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
Image elements do not have [alt] attributes
Links do not have a discernible name
katharineum.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
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
katharineum.de SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 Katharineum.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 Katharineum.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.
katharineum.de
Open Graph description is not detected on the main page of Katharineum. 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: