Tools & Wizards About Us

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

alka-bau.de

Alka Bau und Sanierung GmbH - Startseite

Page Load Speed

1.6 sec in total

First Response

295 ms

Resources Loaded

1 sec

Page Rendered

232 ms

About Website

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

Erleben Sie hochwertige Bauausführungen mit Alka Bau und Sanierung GmbH – Spezialist für rohbau kassel, abbruch kassel, und kanalbau kassel.

Visit alka-bau.de

Key Findings

We analyzed Alka-bau.de page load time and found that the first response time was 295 ms and then it took 1.3 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

alka-bau.de performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value15.0 s

1/100

10%

TBT (Total Blocking Time)

Value270 ms

82/100

30%

CLS (Cumulative Layout Shift)

Value0.606

10/100

15%

TTI (Time to Interactive)

Value37.4 s

0/100

10%

Network Requests Diagram

alka-bau.de

295 ms

style.css

99 ms

swfobject.js

293 ms

get_flash_player.gif

26 ms

main_bg.gif

111 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that 94% of them (17 requests) were addressed to the original Alka-bau.de, 6% (1 request) were made to Adobe.com. The less responsive or slowest element that took the longest time to load (430 ms) belongs to the original domain Alka-bau.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 38.7 kB (59%)

Content Size

65.4 kB

After Optimization

26.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alka-bau.de main page is 65.4 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. 20% of websites need less resources to load. Javascripts take 25.6 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 6.2 kB

  • Original 8.1 kB
  • After minification 7.1 kB
  • After compression 1.9 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 1.0 kB, which is 13% 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 6.2 kB or 76% of the original size.

Image Optimization

-22%

Potential reduce by 5.3 kB

  • Original 24.0 kB
  • After minification 18.7 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, Alka Bau needs image optimization as it can save up to 5.3 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-82%

Potential reduce by 21.1 kB

  • Original 25.6 kB
  • After minification 14.7 kB
  • After compression 4.5 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 21.1 kB or 82% of the original size.

CSS Optimization

-80%

Potential reduce by 6.2 kB

  • Original 7.7 kB
  • After minification 6.6 kB
  • After compression 1.5 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. Alka-bau.de needs all CSS files to be minified and compressed as it can save up to 6.2 kB or 80% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

16

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alka Bau. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

alka-bau.de accessibility score

87

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA input fields do not have accessible names

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

[id] attributes on active, focusable elements are not unique

Best Practices

alka-bau.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

alka-bau.de SEO score

86

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

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

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Alka-bau.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Alka-bau.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 Alka Bau. 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: