Report Summary

  • 91

    Performance

    Renders faster than
    91% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

a.sunlab.de

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Page Load Speed

1.5 sec in total

First Response

308 ms

Resources Loaded

1.1 sec

Page Rendered

145 ms

a.sunlab.de screenshot

About Website

Click here to check amazing A Sunlab content for Germany. Otherwise, check out these important facts you probably never knew about a.sunlab.de

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Key Findings

We analyzed A.sunlab.de page load time and found that the first response time was 308 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

a.sunlab.de performance score

91

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

81/100

25%

SI (Speed Index)

Value3.2 s

92/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

Network Requests Diagram

a.sunlab.de

308 ms

bootstrap.css

188 ms

bootstrap-responsive.css

202 ms

sunlab_lib.css

279 ms

attendance.css

205 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that all of those requests were addressed to A.sunlab.de and no external sources were called. The less responsive or slowest element that took the longest time to load (564 ms) belongs to the original domain A.sunlab.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 571.9 kB (79%)

Content Size

722.1 kB

After Optimization

150.2 kB

In fact, the total size of A.sunlab.de main page is 722.1 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. 25% of websites need less resources to load. Javascripts take 430.8 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 1.9 kB

  • Original 2.8 kB
  • After minification 2.6 kB
  • After compression 893 B

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 1.9 kB or 68% of the original size.

Image Optimization

-7%

Potential reduce by 3.4 kB

  • Original 52.7 kB
  • After minification 49.3 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. A Sunlab images are well optimized though.

JavaScript Optimization

-84%

Potential reduce by 361.7 kB

  • Original 430.8 kB
  • After minification 247.1 kB
  • After compression 69.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 361.7 kB or 84% of the original size.

CSS Optimization

-87%

Potential reduce by 204.9 kB

  • Original 235.8 kB
  • After minification 191.9 kB
  • After compression 30.9 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. A.sunlab.de needs all CSS files to be minified and compressed as it can save up to 204.9 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (77%)

Requests Now

13

After Optimization

3

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of A Sunlab. 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 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

a.sunlab.de accessibility score

59

Accessibility Issues

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

Form elements do not have associated labels

Best Practices

a.sunlab.de best practices score

83

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

SEO Factors

a.sunlab.de SEO score

64

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise A.sunlab.de can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that A.sunlab.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 A Sunlab. 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: