Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

raab-gruppe.de

Raab-Gruppe – Abgastechnische Gesamtlösungen

Page Load Speed

2.1 sec in total

First Response

627 ms

Resources Loaded

1.3 sec

Page Rendered

168 ms

raab-gruppe.de screenshot

About Website

Visit raab-gruppe.de now to see the best up-to-date Raab Gruppe content and also check out these interesting facts you probably never knew about raab-gruppe.de

Schornstein aus Edelstahl von Raab, komplette Lösungen für höchste Ansprüche. Innovative Abgassysteme für Schornsteinsanierung und Neubau.

Visit raab-gruppe.de

Key Findings

We analyzed Raab-gruppe.de page load time and found that the first response time was 627 ms and then it took 1.4 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

raab-gruppe.de performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value14.3 s

1/100

10%

TBT (Total Blocking Time)

Value900 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value9.7 s

29/100

10%

Network Requests Diagram

raab-gruppe.de

627 ms

stylesheet_5b3c68cc1c.css

331 ms

spalten_2spaltig.css

240 ms

javascript_93077bb238.js

242 ms

styles.css

241 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 91% of them (20 requests) were addressed to the original Raab-gruppe.de, 9% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (627 ms) belongs to the original domain Raab-gruppe.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 81.5 kB (45%)

Content Size

180.8 kB

After Optimization

99.3 kB

In fact, the total size of Raab-gruppe.de main page is 180.8 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. 15% of websites need less resources to load. Images take 86.1 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 23.1 kB

  • Original 27.5 kB
  • After minification 22.7 kB
  • After compression 4.4 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 4.8 kB, which is 17% 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 23.1 kB or 84% of the original size.

Image Optimization

-19%

Potential reduce by 15.9 kB

  • Original 86.1 kB
  • After minification 70.1 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, Raab Gruppe needs image optimization as it can save up to 15.9 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 188 B

  • Original 17.5 kB
  • After minification 17.5 kB
  • After compression 17.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-85%

Potential reduce by 42.2 kB

  • Original 49.7 kB
  • After minification 36.2 kB
  • After compression 7.5 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. Raab-gruppe.de needs all CSS files to be minified and compressed as it can save up to 42.2 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (29%)

Requests Now

21

After Optimization

15

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Raab Gruppe. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

raab-gruppe.de accessibility score

87

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.

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 IDs are not unique

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

Links do not have a discernible name

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

raab-gruppe.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

raab-gruppe.de SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

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

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Raab-gruppe.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it does not match the claimed English language. Our system also found out that Raab-gruppe.de 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 Raab Gruppe. 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: