Report Summary

  • 90

    Performance

    Renders faster than
    91% of other websites

  • 48

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

raduga-center.de

ЦЕНТР ПСИХОЛОГИИ И ЭЗОТЕРИКИ В ГЕРМАНИИ

Page Load Speed

7 sec in total

First Response

793 ms

Resources Loaded

5.9 sec

Page Rendered

324 ms

raduga-center.de screenshot

About Website

Welcome to raduga-center.de homepage info - get ready to check Raduga Center best content for Russia right away, or after learning these important things about raduga-center.de

РАДУГА - центр позитивной психологии и эзотерики. Германия.

Visit raduga-center.de

Key Findings

We analyzed Raduga-center.de page load time and found that the first response time was 793 ms and then it took 6.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

raduga-center.de performance score

90

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

86/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value3.5 s

87/100

10%

TBT (Total Blocking Time)

Value140 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.097

90/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

Network Requests Diagram

raduga-center.de

793 ms

dtree.css

216 ms

dtree.js

228 ms

fach.js

359 ms

tooltips.js

229 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 68% of them (38 requests) were addressed to the original Raduga-center.de, 7% (4 requests) were made to Pagead2.googlesyndication.com and 5% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (4.9 sec) belongs to the original domain Raduga-center.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 164.6 kB (33%)

Content Size

503.0 kB

After Optimization

338.5 kB

In fact, the total size of Raduga-center.de main page is 503.0 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. 35% of websites need less resources to load. Images take 303.9 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 88.6 kB

  • Original 102.2 kB
  • After minification 66.3 kB
  • After compression 13.6 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 35.9 kB, which is 35% 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 88.6 kB or 87% of the original size.

Image Optimization

-7%

Potential reduce by 20.2 kB

  • Original 303.9 kB
  • After minification 283.7 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. Raduga Center images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 47.0 kB

  • Original 86.3 kB
  • After minification 79.5 kB
  • After compression 39.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 47.0 kB or 54% of the original size.

CSS Optimization

-83%

Potential reduce by 8.8 kB

  • Original 10.6 kB
  • After minification 7.0 kB
  • After compression 1.8 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. Raduga-center.de needs all CSS files to be minified and compressed as it can save up to 8.8 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (39%)

Requests Now

49

After Optimization

30

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Raduga Center. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

raduga-center.de accessibility score

48

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-*] attributes do not match their roles

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

High

<object> elements do not have alternate text

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

Best Practices

raduga-center.de best practices score

58

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

High

Browser errors were logged to the console

SEO Factors

raduga-center.de SEO score

58

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

High

Document uses plugins

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Raduga-center.de can be misinterpreted by Google and other search engines. Our service has detected that Russian 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 Raduga-center.de main page’s claimed encoding is windows-1251. 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 Raduga Center. 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: