Tools & Wizards About Us
zettelkasten.danielluedecke.de screenshot

Report Summary

  • 96

    Performance

    Renders faster than
    94% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

zettelkasten.danielluedecke.de

Zettelkasten. Nach dem Vorbild von Niklas Luhmann - Eine OpenSource-Literaturkartei für Windows, Macintosh (Mac OS X) und Linux.

Page Load Speed

2 sec in total

First Response

414 ms

Resources Loaded

1 sec

Page Rendered

531 ms

zettelkasten.danielluedecke.de screenshot

About Website

Click here to check amazing Zettelkasten Danielluedecke content for Germany. Otherwise, check out these important facts you probably never knew about zettelkasten.danielluedecke.de

Der elektronische Zettelkasten nach dem Vorbild von Niklas Luhmann. Fuer Windows, Mac OS X und Linux. OpenSource und gratis zum Download.

Visit zettelkasten.danielluedecke.de

Key Findings

We analyzed Zettelkasten.danielluedecke.de page load time and found that the first response time was 414 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

zettelkasten.danielluedecke.de performance score

96

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value2.3 s

93/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.033

100/100

15%

TTI (Time to Interactive)

Value2.2 s

99/100

10%

Network Requests Diagram

zettelkasten.danielluedecke.de

414 ms

styles.css

111 ms

css

34 ms

shadowbox.css

215 ms

shadowbox.js

223 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 69% of them (11 requests) were addressed to the original Zettelkasten.danielluedecke.de, 19% (3 requests) were made to Fonts.gstatic.com and 6% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (414 ms) belongs to the original domain Zettelkasten.danielluedecke.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 6.2 kB (13%)

Content Size

49.1 kB

After Optimization

42.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zettelkasten.danielluedecke.de main page is 49.1 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 25.2 kB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 5.5 kB

  • Original 8.4 kB
  • After minification 7.7 kB
  • After compression 2.9 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 5.5 kB or 65% of the original size.

Image Optimization

-1%

Potential reduce by 351 B

  • Original 25.2 kB
  • After minification 24.8 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. Zettelkasten Danielluedecke images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 190 B

  • Original 13.3 kB
  • After minification 13.3 kB
  • After compression 13.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-6%

Potential reduce by 141 B

  • Original 2.2 kB
  • After minification 2.2 kB
  • After compression 2.1 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. Zettelkasten.danielluedecke.de has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zettelkasten Danielluedecke. According to our analytics all requests are already optimized.

Network Requests Diagram

zettelkasten.danielluedecke.de

zettelkasten.danielluedecke.de

414 ms

styles.css

styles.css

111 ms

css

css

34 ms

shadowbox.css

shadowbox.css

215 ms

shadowbox.js

shadowbox.js

223 ms

cookieconsent.latest.min.js

cookieconsent.latest.min.js

41 ms

zkn_header.png

zkn_header.png

110 ms

en.gif

en.gif

109 ms

download_linux.png

download_linux.png

110 ms

i1.png

i1.png

199 ms

i2.png

i2.png

215 ms

i3.png

i3.png

216 ms

i4.png

i4.png

217 ms

ieVi2ZhZI2eCN5jzbjEETS9weq8-33mZGCQYag.ttf

ieVi2ZhZI2eCN5jzbjEETS9weq8-33mZGCQYag.ttf

17 ms

ieVl2ZhZI2eCN5jzbjEETS9weq8-19K7CA.ttf

ieVl2ZhZI2eCN5jzbjEETS9weq8-19K7CA.ttf

17 ms

ieVg2ZhZI2eCN5jzbjEETS9weq8-19eDpCEobdNc.ttf

ieVg2ZhZI2eCN5jzbjEETS9weq8-19eDpCEobdNc.ttf

54 ms

Accessibility Review

zettelkasten.danielluedecke.de accessibility score

65

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.

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

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

Image elements do not have [alt] attributes

Best Practices

zettelkasten.danielluedecke.de best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

zettelkasten.danielluedecke.de SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    DE

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zettelkasten.danielluedecke.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 Zettelkasten.danielluedecke.de 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.

Social Sharing Optimization

zettelkasten.danielluedecke.de

Open Graph description is not detected on the main page of Zettelkasten Danielluedecke. 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: