Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

lernen.rewe-dortmund.de

Online-Kurse - REWE DORTMUND - Online-Kurse - REWE DORTMUND

Page Load Speed

3.1 sec in total

First Response

315 ms

Resources Loaded

2.6 sec

Page Rendered

166 ms

lernen.rewe-dortmund.de screenshot

About Website

Visit lernen.rewe-dortmund.de now to see the best up-to-date Lernen REWE DORTMUND content for Germany and also check out these interesting facts you probably never knew about lernen.rewe-dortmund.de

Visit lernen.rewe-dortmund.de

Key Findings

We analyzed Lernen.rewe-dortmund.de page load time and found that the first response time was 315 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

lernen.rewe-dortmund.de performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

70/100

25%

SI (Speed Index)

Value4.7 s

70/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.062

97/100

15%

TTI (Time to Interactive)

Value3.4 s

93/100

10%

Network Requests Diagram

lernen.rewe-dortmund.de

315 ms

lernen.rewe-dortmund.de

595 ms

login.php

559 ms

rewe.css

603 ms

HeaderIcon.png

407 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that all of those requests were addressed to Lernen.rewe-dortmund.de and no external sources were called. The less responsive or slowest element that took the longest time to load (626 ms) belongs to the original domain Lernen.rewe-dortmund.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 50.9 kB (54%)

Content Size

95.0 kB

After Optimization

44.1 kB

In fact, the total size of Lernen.rewe-dortmund.de main page is 95.0 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. Only 5% of websites need less resources to load. CSS take 54.2 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 3.7 kB

  • Original 5.6 kB
  • After minification 4.7 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 855 B, 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 3.7 kB or 66% of the original size.

Image Optimization

-5%

Potential reduce by 1.7 kB

  • Original 35.2 kB
  • After minification 33.5 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. Lernen REWE DORTMUND images are well optimized though.

CSS Optimization

-84%

Potential reduce by 45.5 kB

  • Original 54.2 kB
  • After minification 40.2 kB
  • After compression 8.7 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. Lernen.rewe-dortmund.de needs all CSS files to be minified and compressed as it can save up to 45.5 kB or 84% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lernen REWE DORTMUND. According to our analytics all requests are already optimized.

Accessibility Review

lernen.rewe-dortmund.de accessibility score

100

Accessibility Issues

Best Practices

lernen.rewe-dortmund.de best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

lernen.rewe-dortmund.de SEO score

92

Search Engine Optimization Advices

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lernen.rewe-dortmund.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 Lernen.rewe-dortmund.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 Lernen REWE DORTMUND. 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: