Tools & Wizards About Us
datenretter.de screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

datenretter.de

CONVAR – Die Datenretter™

Page Load Speed

3.1 sec in total

First Response

308 ms

Resources Loaded

2.1 sec

Page Rendered

700 ms

datenretter.de screenshot

About Website

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Key Findings

We analyzed Datenretter.de page load time and found that the first response time was 308 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 55% of websites can load faster.

Performance Metrics

datenretter.de performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value13.8 s

0/100

25%

SI (Speed Index)

Value5.6 s

53/100

10%

TBT (Total Blocking Time)

Value400 ms

67/100

30%

CLS (Cumulative Layout Shift)

Value0.067

97/100

15%

TTI (Time to Interactive)

Value9.7 s

28/100

10%

Network Requests Diagram

datenretter.de

308 ms

datenretter.de

449 ms

jquery.min.js

17 ms

jquery-ui.css

105 ms

loading.min.css

207 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 76% of them (25 requests) were addressed to the original Datenretter.de, 9% (3 requests) were made to Googletagmanager.com and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (716 ms) belongs to the original domain Datenretter.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 64.6 kB (3%)

Content Size

1.9 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Datenretter.de main page is 1.9 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. 40% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 11.8 kB

  • Original 17.3 kB
  • After minification 15.4 kB
  • After compression 5.5 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 1.9 kB, which is 11% 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 11.8 kB or 68% of the original size.

Image Optimization

-0%

Potential reduce by 7.5 kB

  • Original 1.6 MB
  • After minification 1.6 MB

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. Datenretter images are well optimized though.

JavaScript Optimization

-20%

Potential reduce by 42.5 kB

  • Original 216.5 kB
  • After minification 216.5 kB
  • After compression 174.0 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 42.5 kB or 20% of the original size.

CSS Optimization

-8%

Potential reduce by 2.8 kB

  • Original 34.6 kB
  • After minification 34.6 kB
  • After compression 31.8 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. Datenretter.de has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 16 (57%)

Requests Now

28

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Datenretter. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

datenretter.de

datenretter.de

308 ms

datenretter.de

datenretter.de

449 ms

jquery.min.js

jquery.min.js

17 ms

jquery-ui.css

jquery-ui.css

105 ms

loading.min.css

loading.min.css

207 ms

jquery.fancybox.css

jquery.fancybox.css

312 ms

intlTelInput.css

intlTelInput.css

311 ms

all.css

all.css

313 ms

styles.css

styles.css

315 ms

lity.min.css

lity.min.css

312 ms

jquery.min.js

jquery.min.js

423 ms

jquery.fancybox.js

jquery.fancybox.js

520 ms

jquery-ui.min.js

jquery-ui.min.js

629 ms

jquery.loading.min.js

jquery.loading.min.js

414 ms

convar.js

convar.js

413 ms

lity.min.js

lity.min.js

413 ms

gtm.js

gtm.js

126 ms

datenretter-main-logo.png

datenretter-main-logo.png

108 ms

bg-freelance-background.jpg

bg-freelance-background.jpg

518 ms

bg-freelance-foreground.png

bg-freelance-foreground.png

616 ms

datenretter-swuush.png

datenretter-swuush.png

106 ms

bg-mosaik.jpg

bg-mosaik.jpg

615 ms

bg-9-11.jpg

bg-9-11.jpg

716 ms

bg-individual.jpg

bg-individual.jpg

411 ms

FUJILITN.TTF

FUJILITN.TTF

133 ms

fa-solid-900.woff

fa-solid-900.woff

337 ms

fa-regular-400.woff

fa-regular-400.woff

440 ms

analytics.js

analytics.js

21 ms

destination

destination

67 ms

collect

collect

12 ms

collect

collect

134 ms

js

js

58 ms

ga-audiences

ga-audiences

87 ms

Accessibility Review

datenretter.de accessibility score

82

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.

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

Links do not have a discernible name

Best Practices

datenretter.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

High

Page has valid source maps

SEO Factors

datenretter.de SEO score

92

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 Datenretter.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 Datenretter.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

datenretter.de

Open Graph description is not detected on the main page of Datenretter. 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: