Tools & Wizards About Us
online-klavierkurs.com screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

online-klavierkurs.com

… | Klavier lernen mit Katrin Kayser

Page Load Speed

2.3 sec in total

First Response

95 ms

Resources Loaded

1.8 sec

Page Rendered

457 ms

online-klavierkurs.com screenshot

About Website

Visit online-klavierkurs.com now to see the best up-to-date Online Klavier Kurs content for Germany and also check out these interesting facts you probably never knew about online-klavierkurs.com

„Mit nur 3 Akkorden kannst du frei Klavier spielen lernen.“ //--> //-->

Visit online-klavierkurs.com

Key Findings

We analyzed Online-klavierkurs.com page load time and found that the first response time was 95 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

online-klavierkurs.com performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value14.7 s

0/100

25%

SI (Speed Index)

Value22.1 s

0/100

10%

TBT (Total Blocking Time)

Value10,780 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.235

53/100

15%

TTI (Time to Interactive)

Value21.2 s

1/100

10%

Network Requests Diagram

online-klavierkurs.com

95 ms

www.online-klavierkurs.com

217 ms

neu

48 ms

799 ms

css_DOOm3UQbqIsoYxGsQMdEWaL7ZubhJHh-YA5X4bVkP1M.css

110 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 54% of them (26 requests) were addressed to the original Online-klavierkurs.com, 13% (6 requests) were made to Fonts.googleapis.com and 6% (3 requests) were made to App.getresponse.com. The less responsive or slowest element that took the longest time to load (799 ms) belongs to the original domain Online-klavierkurs.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (69%)

Content Size

1.7 MB

After Optimization

521.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Online-klavierkurs.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. 50% of websites need less resources to load. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 32.0 kB

  • Original 41.1 kB
  • After minification 36.8 kB
  • After compression 9.1 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 4.4 kB, which is 11% 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 32.0 kB or 78% of the original size.

Image Optimization

-8%

Potential reduce by 16.2 kB

  • Original 195.4 kB
  • After minification 179.2 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. Online Klavier Kurs images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 784.6 kB

  • Original 1.1 MB
  • After minification 857.2 kB
  • After compression 273.7 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 784.6 kB or 74% of the original size.

CSS Optimization

-85%

Potential reduce by 341.1 kB

  • Original 400.3 kB
  • After minification 395.4 kB
  • After compression 59.2 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. Online-klavierkurs.com needs all CSS files to be minified and compressed as it can save up to 341.1 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (67%)

Requests Now

39

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Online Klavier Kurs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

online-klavierkurs.com

online-klavierkurs.com

95 ms

www.online-klavierkurs.com

www.online-klavierkurs.com

217 ms

neu

neu

48 ms

799 ms

css_DOOm3UQbqIsoYxGsQMdEWaL7ZubhJHh-YA5X4bVkP1M.css

css_DOOm3UQbqIsoYxGsQMdEWaL7ZubhJHh-YA5X4bVkP1M.css

110 ms

css_TsVRTbLFUpEZAfw-_bWPJu840QT523CPjUVJ5MRWfyk.css

css_TsVRTbLFUpEZAfw-_bWPJu840QT523CPjUVJ5MRWfyk.css

109 ms

css_7IB294pkiVOQ11pvO0TiUS3Fksz_it1NZ6IlTlWTtdM.css

css_7IB294pkiVOQ11pvO0TiUS3Fksz_it1NZ6IlTlWTtdM.css

89 ms

css_3DadQvPK2OZAyfxu_dYCC5oo0-imHGg2_DhFTPrqMeg.css

css_3DadQvPK2OZAyfxu_dYCC5oo0-imHGg2_DhFTPrqMeg.css

111 ms

css_f9ezRRn5IrQGoDm-RKfEr_iTnDP87qJrXExiKr9R-JI.css

css_f9ezRRn5IrQGoDm-RKfEr_iTnDP87qJrXExiKr9R-JI.css

190 ms

js_tiVR4bsMBbjNVMiFkj3FrB4tDLfLhGomjZ5sENHvApo.js

js_tiVR4bsMBbjNVMiFkj3FrB4tDLfLhGomjZ5sENHvApo.js

233 ms

js_Y_PzJuxJa4HsQE6Uquo9kmZYzIPDP15oTuzCjDaNWZA.js

js_Y_PzJuxJa4HsQE6Uquo9kmZYzIPDP15oTuzCjDaNWZA.js

183 ms

lightbox.js

lightbox.js

230 ms

js_ZEXVApzucTxx6hWigk6BZ9MXmsilpY7PTkvCWnCNeIA.js

js_ZEXVApzucTxx6hWigk6BZ9MXmsilpY7PTkvCWnCNeIA.js

161 ms

js_GRisERwkDMGfPS3K82obpOEzOoRY8wu4dqX_tyZwIjo.js

js_GRisERwkDMGfPS3K82obpOEzOoRY8wu4dqX_tyZwIjo.js

176 ms

js_M0cNU_zLmpg5w3TxLv39nboup40bnyARG6Xb1RpiVdA.js

js_M0cNU_zLmpg5w3TxLv39nboup40bnyARG6Xb1RpiVdA.js

229 ms

socialproofcounter.php

socialproofcounter.php

478 ms

view_webform_v2.js

view_webform_v2.js

111 ms

css

css

39 ms

css

css

42 ms

css

css

56 ms

css

css

53 ms

css

css

52 ms

css

css

54 ms

css_VoFneXTiceIvRKvI2yOi0uKqlvd2Wmy2fKTXEeJrtRw.css

css_VoFneXTiceIvRKvI2yOi0uKqlvd2Wmy2fKTXEeJrtRw.css

105 ms

common.js

common.js

51 ms

util.js

util.js

51 ms

geocoder.js

geocoder.js

51 ms

analytics.js

analytics.js

47 ms

ebook-video-1.jpg

ebook-video-1.jpg

97 ms

klavier-lernen-katrin-kayser-logo-700.png

klavier-lernen-katrin-kayser-logo-700.png

143 ms

menu-leaf.png

menu-leaf.png

95 ms

cover-haltung-transp.gif

cover-haltung-transp.gif

115 ms

B874405C-D4AE-52BC-EDCDDF08C245FCEC.js

B874405C-D4AE-52BC-EDCDDF08C245FCEC.js

130 ms

cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

59 ms

DXI1ORHCpsQm3Vp6mXoaTXhCUOGz7vYGh680lGh-uXM.woff

DXI1ORHCpsQm3Vp6mXoaTXhCUOGz7vYGh680lGh-uXM.woff

59 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

261 ms

collect

collect

9 ms

collect

collect

58 ms

ebook-video-1.jpg

ebook-video-1.jpg

201 ms

katrin-kayser-150px.jpg

katrin-kayser-150px.jpg

53 ms

gratis-kursbild-ohne-bonus.jpg

gratis-kursbild-ohne-bonus.jpg

181 ms

cover-haltung-transp.gif

cover-haltung-transp.gif

181 ms

blank.html

blank.html

136 ms

jwplayer.js

jwplayer.js

134 ms

gr.js

gr.js

91 ms

title.gif

title.gif

50 ms

captions-2.js

captions-2.js

10 ms

gr_wf_v2.js

gr_wf_v2.js

18 ms

Accessibility Review

online-klavierkurs.com accessibility score

58

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

online-klavierkurs.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

online-klavierkurs.com SEO score

91

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Online-klavierkurs.com 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 Online-klavierkurs.com 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.

Social Sharing Optimization

online-klavierkurs.com

Open Graph description is not detected on the main page of Online Klavier Kurs. 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: