Tools & Wizards About Us
keplerstern.de screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

keplerstern.de

Signatur der Sphären | Lyrik | Fotographie - Keplerstern Verlag

Page Load Speed

4.9 sec in total

First Response

567 ms

Resources Loaded

3.8 sec

Page Rendered

478 ms

keplerstern.de screenshot

About Website

Visit keplerstern.de now to see the best up-to-date Keplerstern content and also check out these interesting facts you probably never knew about keplerstern.de

Die Entdeckung einer vielschichtigen harmonisch-musikalischen und geometrischen Ordnung im Sonnensystem auf Grundlage moderner astronomischer Erkenntnisse

Visit keplerstern.de

Key Findings

We analyzed Keplerstern.de page load time and found that the first response time was 567 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

keplerstern.de performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

22/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

42/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.09

92/100

15%

TTI (Time to Interactive)

Value5.1 s

75/100

10%

Network Requests Diagram

www.keplerstern.de

567 ms

style.min.css

149 ms

wc-blocks-vendors-style.css

267 ms

wc-blocks-style.css

528 ms

classic-themes.min.css

313 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that all of those requests were addressed to Keplerstern.de and no external sources were called. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Keplerstern.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 288.1 kB (22%)

Content Size

1.3 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Keplerstern.de main page is 1.3 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. 35% of websites need less resources to load. Images take 901.2 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 48.3 kB

  • Original 59.8 kB
  • After minification 57.1 kB
  • After compression 11.6 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. 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 48.3 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 114 B

  • Original 901.2 kB
  • After minification 901.1 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. Keplerstern images are well optimized though.

JavaScript Optimization

-75%

Potential reduce by 214.5 kB

  • Original 286.0 kB
  • After minification 236.1 kB
  • After compression 71.5 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 214.5 kB or 75% of the original size.

CSS Optimization

-28%

Potential reduce by 25.2 kB

  • Original 90.1 kB
  • After minification 90.1 kB
  • After compression 64.9 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. Keplerstern.de needs all CSS files to be minified and compressed as it can save up to 25.2 kB or 28% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (31%)

Requests Now

39

After Optimization

27

  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Keplerstern. 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 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.keplerstern.de

www.keplerstern.de

567 ms

style.min.css

style.min.css

149 ms

wc-blocks-vendors-style.css

wc-blocks-vendors-style.css

267 ms

wc-blocks-style.css

wc-blocks-style.css

528 ms

classic-themes.min.css

classic-themes.min.css

313 ms

app.min.css

app.min.css

451 ms

custom.css

custom.css

328 ms

modernizr.js

modernizr.js

540 ms

jquery.min.js

jquery.min.js

594 ms

jquery-migrate.min.js

jquery-migrate.min.js

422 ms

fastclick.js

fastclick.js

499 ms

foundation.min.js

foundation.min.js

774 ms

app.min.js

app.min.js

564 ms

navigation.js

navigation.js

683 ms

skip-link-focus-fix.js

skip-link-focus-fix.js

683 ms

keplerstern-verlag-banner.jpg

keplerstern-verlag-banner.jpg

232 ms

ukflag.gif

ukflag.gif

116 ms

italy.png

italy.png

422 ms

flag_spain.png

flag_spain.png

426 ms

programm-startseite-card-600px.jpg

programm-startseite-card-600px.jpg

367 ms

hexagram-title-edit-300px.jpg

hexagram-title-edit-300px.jpg

620 ms

titelblatt-kalender-2024.jpg

titelblatt-kalender-2024.jpg

705 ms

jupiter-saturn-neptun-quadrat-120.jpg

jupiter-saturn-neptun-quadrat-120.jpg

422 ms

bild6-bewegungsbild-venus-mars-neptun-quadrat-klein-120.jpg

bild6-bewegungsbild-venus-mars-neptun-quadrat-klein-120.jpg

502 ms

erde-venus-schleifen-120.jpg

erde-venus-schleifen-120.jpg

629 ms

SignKeplerstern2-120.jpg

SignKeplerstern2-120.jpg

639 ms

bild10-venus-erde-venusrotation-quadrat-klein-120.jpg

bild10-venus-erde-venusrotation-quadrat-klein-120.jpg

665 ms

signatur-der-sphaeren-deckblatt-2-120.jpg

signatur-der-sphaeren-deckblatt-2-120.jpg

641 ms

programm-mysterium-cosmographicum-1-120.jpg

programm-mysterium-cosmographicum-1-120.jpg

737 ms

linien-und-formen-im-raum-cover-02-120.jpg

linien-und-formen-im-raum-cover-02-120.jpg

757 ms

Planetenmusik2_CoverVS-150x150-120.jpeg

Planetenmusik2_CoverVS-150x150-120.jpeg

753 ms

johannes-kepler-2-120.jpg

johannes-kepler-2-120.jpg

750 ms

cover-sternenorganismus-480.jpg

cover-sternenorganismus-480.jpg

903 ms

signatur-der-sphaeren-deckblatt-220.jpg

signatur-der-sphaeren-deckblatt-220.jpg

825 ms

titelblatt-kalender-2024-220px.jpg

titelblatt-kalender-2024-220px.jpg

867 ms

cover-songs-from-a-distant-galaxy-220px.jpg

cover-songs-from-a-distant-galaxy-220px.jpg

880 ms

postkarten-mappe-cover-2020-220.jpg

postkarten-mappe-cover-2020-220.jpg

880 ms

winterreise-heute-cover-390.jpg

winterreise-heute-cover-390.jpg

1060 ms

hwarm-edelstein-4a-s-390.jpg

hwarm-edelstein-4a-s-390.jpg

1043 ms

keplerstern-verlag-logo.jpg

keplerstern-verlag-logo.jpg

1005 ms

Accessibility Review

keplerstern.de accessibility score

88

Accessibility Issues

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

High

Links do not have a discernible name

Best Practices

keplerstern.de best practices score

75

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

keplerstern.de SEO score

83

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

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

    DE

  • Encoding

    UTF-8

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

Social Sharing Optimization

keplerstern.de

Open Graph data is detected on the main page of Keplerstern. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: