1.3 sec in total
270 ms
900 ms
160 ms
Welcome to lehrklaenge.de homepage info - get ready to check Lehrklaenge best content for Germany right away, or after learning these important things about lehrklaenge.de
Onlinelehrgang Musiktheorie für Liebhaber oder zur ergänzenden Vorbereitung auf eine Aufnahmeprüfung. Mit vielen Grafiken und Klangbeispielen.
Visit lehrklaenge.deWe analyzed Lehrklaenge.de page load time and found that the first response time was 270 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
lehrklaenge.de performance score
name
value
score
weighting
Value2.1 s
81/100
10%
Value4.4 s
39/100
25%
Value3.0 s
94/100
10%
Value50 ms
100/100
30%
Value0.002
100/100
15%
Value3.6 s
92/100
10%
270 ms
107 ms
208 ms
175 ms
205 ms
Our browser made a total of 26 requests to load all elements on the main page. We found that 96% of them (25 requests) were addressed to the original Lehrklaenge.de, 4% (1 request) were made to Paypalobjects.com. The less responsive or slowest element that took the longest time to load (415 ms) belongs to the original domain Lehrklaenge.de.
Page size can be reduced by 100.0 kB (57%)
174.8 kB
74.7 kB
In fact, the total size of Lehrklaenge.de main page is 174.8 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. Only 10% of websites need less resources to load. Images take 131.8 kB which makes up the majority of the site volume.
Potential reduce by 7.7 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 7.7 kB or 67% of the original size.
Potential reduce by 64.6 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, Lehrklaenge needs image optimization as it can save up to 64.6 kB or 49% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 27.6 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. Lehrklaenge.de needs all CSS files to be minified and compressed as it can save up to 27.6 kB or 88% of the original size.
We found no issues to fix!
25
25
The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lehrklaenge. According to our analytics all requests are already optimized.
lehrklaenge.de
270 ms
MainContainer.css
107 ms
Formatierung.css
208 ms
pixel.gif
175 ms
Spende01a.png
205 ms
Titelschriftzug.png
216 ms
RahmenHinterggund.jpg
108 ms
Musiksymbole02.png
106 ms
SucheButton.png
105 ms
GaestebuchButton.png
106 ms
ImpressumButton.png
202 ms
GrundlagenButton.png
204 ms
IntervalleButton.png
208 ms
AkkordeButton.png
208 ms
TonartenButton.png
210 ms
TonsystemButton.png
316 ms
Harm1Button.png
300 ms
Harmonielehre2Button.png
304 ms
FormenlehreButton.png
309 ms
WerkanalyseButton.png
309 ms
AkustikButton.png
312 ms
InstrumentenkundeButton.png
400 ms
GehoerbildungButton.png
404 ms
MusikgeschichteButton.png
410 ms
AufnahmepruefungButton.png
411 ms
KleinesLexikonButton.png
415 ms
lehrklaenge.de accessibility score
lehrklaenge.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
Browser errors were logged to the console
lehrklaenge.de SEO score
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 doesn't use legible font sizes
DE
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lehrklaenge.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Lehrklaenge.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.
lehrklaenge.de
Open Graph description is not detected on the main page of Lehrklaenge. 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: