Report Summary

  • 92

    Performance

    Renders faster than
    92% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

allthesky.de

Digital Images of the Sky - Gallery for Astrophotography

Page Load Speed

2.6 sec in total

First Response

628 ms

Resources Loaded

1.8 sec

Page Rendered

205 ms

allthesky.de screenshot

About Website

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

Gallery for Astronomical Images. Photographies of all the sky show the wonders of our universe, from the visible constellations to the far galaxies.

Visit allthesky.de

Key Findings

We analyzed Allthesky.de page load time and found that the first response time was 628 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

allthesky.de performance score

92

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

92/100

25%

SI (Speed Index)

Value4.4 s

74/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.4 s

98/100

10%

Network Requests Diagram

www.allthesky.com

628 ms

hohengundelfingen22may22-bb.jpg

849 ms

fl_d_gb_e.gif

360 ms

diots.gif

373 ms

Our browser made a total of 4 requests to load all elements on the main page. We found that all of those requests were addressed to Allthesky.de and no external sources were called. The less responsive or slowest element that took the longest time to load (849 ms) relates to the external source Allthesky.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 27.6 kB (7%)

Content Size

413.9 kB

After Optimization

386.3 kB

In fact, the total size of Allthesky.de main page is 413.9 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 408.4 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 3.8 kB

  • Original 5.5 kB
  • After minification 5.3 kB
  • After compression 1.7 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 3.8 kB or 70% of the original size.

Image Optimization

-6%

Potential reduce by 23.8 kB

  • Original 408.4 kB
  • After minification 384.6 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. Allthe Sky images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

3

After Optimization

3

The browser has sent 3 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Allthe Sky. According to our analytics all requests are already optimized.

Accessibility Review

allthesky.de accessibility score

81

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

Form elements do not have associated labels

Best Practices

allthesky.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

allthesky.de SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Allthesky.de can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Allthesky.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

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