Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

kaller.de

Kaller & Kaller Werbeagentur Immobilienmarketing Design Berlin Nürnberg

Page Load Speed

5 sec in total

First Response

481 ms

Resources Loaded

3.8 sec

Page Rendered

686 ms

kaller.de screenshot

About Website

Click here to check amazing Kaller content. Otherwise, check out these important facts you probably never knew about kaller.de

Werbeagentur Kaller & Kaller in Berlin und Nürnberg für Immobilienmarketing, Corporate Design und Webdesign. Wir sind schnell, engagiert und umsetzungsstark.

Visit kaller.de

Key Findings

We analyzed Kaller.de page load time and found that the first response time was 481 ms and then it took 4.5 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

kaller.de performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

23/100

25%

SI (Speed Index)

Value6.6 s

37/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.323

36/100

15%

TTI (Time to Interactive)

Value7.0 s

53/100

10%

Network Requests Diagram

kaller.de

481 ms

www.kaller.de

1009 ms

4e439539-9b2f-44ad-8e58-c10b474430df.js

78 ms

style.css

391 ms

style.min.css

505 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 90% of them (37 requests) were addressed to the original Kaller.de, 7% (3 requests) were made to Fast.fonts.net and 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Kaller.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 378.6 kB (37%)

Content Size

1.0 MB

After Optimization

635.0 kB

In fact, the total size of Kaller.de main page is 1.0 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. 45% of websites need less resources to load. Images take 618.4 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 81.5 kB

  • Original 96.6 kB
  • After minification 82.4 kB
  • After compression 15.2 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. This page needs HTML code to be minified as it can gain 14.2 kB, which is 15% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 81.5 kB or 84% of the original size.

Image Optimization

-12%

Potential reduce by 75.3 kB

  • Original 618.4 kB
  • After minification 543.1 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. Obviously, Kaller needs image optimization as it can save up to 75.3 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-26%

Potential reduce by 13.6 kB

  • Original 52.1 kB
  • After minification 52.0 kB
  • After compression 38.4 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 13.6 kB or 26% of the original size.

CSS Optimization

-84%

Potential reduce by 208.2 kB

  • Original 246.5 kB
  • After minification 229.6 kB
  • After compression 38.4 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. Kaller.de needs all CSS files to be minified and compressed as it can save up to 208.2 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (19%)

Requests Now

36

After Optimization

29

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kaller. 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 CSS and as a result speed up the page load time.

Accessibility Review

kaller.de accessibility score

86

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

kaller.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

kaller.de SEO score

91

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

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