Tools & Wizards About Us

Report Summary

  • 75

    Performance

    Renders faster than
    84% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

sonnenstaub.info

Sonnensturm und Sonnenwind Forschung CFS

Page Load Speed

9.3 sec in total

First Response

315 ms

Resources Loaded

8.7 sec

Page Rendered

255 ms

About Website

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Key Findings

We analyzed Sonnenstaub.info page load time and found that the first response time was 315 ms and then it took 9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

sonnenstaub.info performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

76/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

24/100

25%

SI (Speed Index)

Value4.2 s

78/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.088

92/100

15%

TTI (Time to Interactive)

Value2.3 s

99/100

10%

Network Requests Diagram

sonnenstaub.info

315 ms

www.sonnenstaub.info

953 ms

stylesheet_47a6927fc4.css

340 ms

style.css

337 ms

javascript_a708894199.js

219 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 46% of them (11 requests) were addressed to the original Sonnenstaub.info, 17% (4 requests) were made to S7.addthis.com and 13% (3 requests) were made to Schwingfeld.de. The less responsive or slowest element that took the longest time to load (7.3 sec) belongs to the original domain Sonnenstaub.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 689.0 kB (59%)

Content Size

1.2 MB

After Optimization

478.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sonnenstaub.info main page is 1.2 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. 20% of websites need less resources to load. Javascripts take 657.7 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 24.8 kB

  • Original 34.4 kB
  • After minification 31.4 kB
  • After compression 9.6 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 24.8 kB or 72% of the original size.

Image Optimization

-10%

Potential reduce by 21.9 kB

  • Original 215.1 kB
  • After minification 193.2 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. Sonnenstaub images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 425.7 kB

  • Original 657.7 kB
  • After minification 651.0 kB
  • After compression 232.0 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 425.7 kB or 65% of the original size.

CSS Optimization

-83%

Potential reduce by 216.6 kB

  • Original 260.6 kB
  • After minification 255.8 kB
  • After compression 44.0 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. Sonnenstaub.info needs all CSS files to be minified and compressed as it can save up to 216.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (38%)

Requests Now

21

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sonnenstaub. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

sonnenstaub.info accessibility score

83

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

Links do not have a discernible name

Best Practices

sonnenstaub.info 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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

sonnenstaub.info SEO score

71

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

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 Sonnenstaub.info 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 Sonnenstaub.info 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

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