Tools & Wizards About Us
radio21.de screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

radio21.de

RADIO 21 - bester ROCK 'N POP

Page Load Speed

3.7 sec in total

First Response

302 ms

Resources Loaded

2.4 sec

Page Rendered

955 ms

radio21.de screenshot

About Website

Visit radio21.de now to see the best up-to-date RADIO 21 content for Germany and also check out these interesting facts you probably never knew about radio21.de

RADIO 21 - Willkommen auf der offiziellen Seite - Bei uns klingt kein Tag wie der andere, wie ein iPod im Shuffle-Modus.

Visit radio21.de

Key Findings

We analyzed Radio21.de page load time and found that the first response time was 302 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

radio21.de performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value1,150 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value1

2/100

15%

TTI (Time to Interactive)

Value16.9 s

5/100

10%

Network Requests Diagram

radio21.de

302 ms

www.radio21.de

509 ms

merged-8334cbe4079024eacc51721a4bef8086-5c72589428b2846cb74b76d3dfec9af4.css

209 ms

loader.js

29 ms

KonsoleStream.js

778 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 88% of them (58 requests) were addressed to the original Radio21.de, 5% (3 requests) were made to Ssl.google-analytics.com and 3% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Radio21.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 187.3 kB (4%)

Content Size

5.3 MB

After Optimization

5.1 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Radio21.de main page is 5.3 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. 50% of websites need less resources to load. Images take 5.1 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 40.0 kB

  • Original 50.4 kB
  • After minification 47.7 kB
  • After compression 10.4 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 40.0 kB or 79% of the original size.

Image Optimization

-2%

Potential reduce by 76.7 kB

  • Original 5.1 MB
  • After minification 5.0 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. RADIO 21 images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 70.6 kB

  • Original 114.1 kB
  • After minification 114.1 kB
  • After compression 43.5 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 70.6 kB or 62% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (12%)

Requests Now

59

After Optimization

52

  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of RADIO 21. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

radio21.de

radio21.de

302 ms

www.radio21.de

www.radio21.de

509 ms

merged-8334cbe4079024eacc51721a4bef8086-5c72589428b2846cb74b76d3dfec9af4.css

merged-8334cbe4079024eacc51721a4bef8086-5c72589428b2846cb74b76d3dfec9af4.css

209 ms

loader.js

loader.js

29 ms

KonsoleStream.js

KonsoleStream.js

778 ms

js

js

82 ms

merged-cf395682a7f66ff7d4b8a064620412fe-ddfb2b81428b0448b5f71dc2cffe3355.js

merged-cf395682a7f66ff7d4b8a064620412fe-ddfb2b81428b0448b5f71dc2cffe3355.js

487 ms

merged-62342299560a822d77eb35e0fdd3a787-70695bfba019e30b6c6a1d8f9d2f7c20.js

merged-62342299560a822d77eb35e0fdd3a787-70695bfba019e30b6c6a1d8f9d2f7c20.js

379 ms

Form.min-64ff07911a7f96a80f6c677cd5b604b1.js

Form.min-64ff07911a7f96a80f6c677cd5b604b1.js

388 ms

gtm.js

gtm.js

70 ms

radio21_logo.svg

radio21_logo.svg

97 ms

ksos2024_Slider-Vorlage.jpg

ksos2024_Slider-Vorlage.jpg

472 ms

pexels-photo-1106479.jpeg

pexels-photo-1106479.jpeg

510 ms

praktikum-beim-radio.jpg

praktikum-beim-radio.jpg

516 ms

dmr-r21-slider.png

dmr-r21-slider.png

845 ms

rockklassikerumvoll-sldr.jpg

rockklassikerumvoll-sldr.jpg

757 ms

stream_btn.svg

stream_btn.svg

337 ms

whatsapp_btn.svg

whatsapp_btn.svg

431 ms

bestofrock_btn.svg

bestofrock_btn.svg

526 ms

hotline_btn.svg

hotline_btn.svg

566 ms

csm_frank-turner-2022_Universal_Image_Resizer__94234ee7ab.jpg

csm_frank-turner-2022_Universal_Image_Resizer__94234ee7ab.jpg

603 ms

csm_Rolling_Stones_Mark_Seliger_Universal_Pressebild__Image_Resizer__0145ac65f0.jpg

csm_Rolling_Stones_Mark_Seliger_Universal_Pressebild__Image_Resizer__0145ac65f0.jpg

611 ms

csm_Smashing_Pumpkins_-_16511__1__51b0776f70.jpg

csm_Smashing_Pumpkins_-_16511__1__51b0776f70.jpg

620 ms

csm_ACDC_1979_Leidseplein_Presse_B.V._for_U.S._and_Australian_Music_Corporation_Pty_Ltd._for_rest_of_world__Image_Resizer__6c58341659.jpg

csm_ACDC_1979_Leidseplein_Presse_B.V._for_U.S._and_Australian_Music_Corporation_Pty_Ltd._for_rest_of_world__Image_Resizer__6c58341659.jpg

664 ms

csm_johnny-cash_Universal_Music_2010__Image_Resizer__41a02cb9a1.jpg

csm_johnny-cash_Universal_Music_2010__Image_Resizer__41a02cb9a1.jpg

697 ms

csm_the-beatles_Apple_Corps_LTD_Universal_Music_Group__Image_Resizer__6e196cf33d.jpg

csm_the-beatles_Apple_Corps_LTD_Universal_Music_Group__Image_Resizer__6e196cf33d.jpg

705 ms

csm_destroyer-800662_1920__1__ab0be2d101.jpg

csm_destroyer-800662_1920__1__ab0be2d101.jpg

714 ms

csm_Polizei_scott-rodgerson__Image_Resizer__a8ef6fc6f6.jpg

csm_Polizei_scott-rodgerson__Image_Resizer__a8ef6fc6f6.jpg

759 ms

csm_Polizei_Franz_Sauerteig_Pixabay__Image_Resizer__f540ed76bc.jpg

csm_Polizei_Franz_Sauerteig_Pixabay__Image_Resizer__f540ed76bc.jpg

791 ms

csm_insect-Ted_Erski_Pixabay__Image_Resizer__b34822f229.png

csm_insect-Ted_Erski_Pixabay__Image_Resizer__b34822f229.png

893 ms

csm_Solaranlage_Leopictures__Image_Resizer__87fbdfdf3c.jpg

csm_Solaranlage_Leopictures__Image_Resizer__87fbdfdf3c.jpg

808 ms

csm_camper_pixabay__Image_Resizer__bb6019e69e.jpg

csm_camper_pixabay__Image_Resizer__bb6019e69e.jpg

849 ms

csm_ROCK__N_POP_NEWS_81e9ef3a10.png

csm_ROCK__N_POP_NEWS_81e9ef3a10.png

854 ms

csm_Mythen_der_Rockgeschichte_7785725cd6.png

csm_Mythen_der_Rockgeschichte_7785725cd6.png

885 ms

csm_mba_Podcasts_3000x3000_6cd03b92f2.jpg

csm_mba_Podcasts_3000x3000_6cd03b92f2.jpg

901 ms

csm_Bingewatchers_8620ed18fa.png

csm_Bingewatchers_8620ed18fa.png

934 ms

csm_Menschen_der_Woche_585163d629.png

csm_Menschen_der_Woche_585163d629.png

944 ms

csm_Webinsider_5c800bc7ff.png

csm_Webinsider_5c800bc7ff.png

949 ms

csm_myles-interview_cae1b0c7ef.jpg

csm_myles-interview_cae1b0c7ef.jpg

978 ms

csm_campino_mba_b2306027ed.png

csm_campino_mba_b2306027ed.png

986 ms

csm_leto-interview_020547f6a0.png

csm_leto-interview_020547f6a0.png

995 ms

csm_kirk-interview_25e3dd65d2.png

csm_kirk-interview_25e3dd65d2.png

1027 ms

csm_slash_interview_509a0a0dd2.jpg

csm_slash_interview_509a0a0dd2.jpg

991 ms

ga.js

ga.js

18 ms

montserrat-v25-latin-700.woff

montserrat-v25-latin-700.woff

952 ms

__utm.gif

__utm.gif

12 ms

collect

collect

23 ms

montserrat-v25-latin-900.woff

montserrat-v25-latin-900.woff

944 ms

montserrat-v25-latin-regular.woff

montserrat-v25-latin-regular.woff

949 ms

fa-brands-400.ttf

fa-brands-400.ttf

956 ms

csm_jon-interview_15130ee9e4.png

csm_jon-interview_15130ee9e4.png

787 ms

csm_drachenboot_bbfece7526.png

csm_drachenboot_bbfece7526.png

707 ms

csm_2024_TOOL_Pressefoto_Credit_Travis-Shinn_d6c9179d7a.jpeg

csm_2024_TOOL_Pressefoto_Credit_Travis-Shinn_d6c9179d7a.jpeg

673 ms

csm_uaf-slide2019-spielplan_414aa37c9c.jpg

csm_uaf-slide2019-spielplan_414aa37c9c.jpg

663 ms

csm_5FDP-CREDIT-Hristo-Shindov-scaled-1_8dd43bc2df.jpg

csm_5FDP-CREDIT-Hristo-Shindov-scaled-1_8dd43bc2df.jpg

666 ms

csm_c66f3dfc-bcb0-470d-afff-d01aeea6dc6e_3f9a30b333.jpeg

csm_c66f3dfc-bcb0-470d-afff-d01aeea6dc6e_3f9a30b333.jpeg

692 ms

csm_rival-sons-neu-1068x693_64d2f354ab.jpg

csm_rival-sons-neu-1068x693_64d2f354ab.jpg

668 ms

csm_TheSmashingPumpkins_PressShot_Source_CAA_d298803363.jpg

csm_TheSmashingPumpkins_PressShot_Source_CAA_d298803363.jpg

636 ms

csm_rockdasding-evnt_b7c642d31b.jpg

csm_rockdasding-evnt_b7c642d31b.jpg

654 ms

RADIO-21_Footerlogo.svg

RADIO-21_Footerlogo.svg

653 ms

Rockland-Radio_White_Glyphe_Kontur.svg

Rockland-Radio_White_Glyphe_Kontur.svg

627 ms

Antenne-Sylt_glyphe_white.svg

Antenne-Sylt_glyphe_white.svg

615 ms

The_WOLF_Reduktion_RGB_WH.svg

The_WOLF_Reduktion_RGB_WH.svg

647 ms

DSN.svg

DSN.svg

621 ms

96_Medienpartner.svg

96_Medienpartner.svg

605 ms

__utm.gif

__utm.gif

4 ms

Accessibility Review

radio21.de accessibility score

59

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

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Image elements do not have [alt] attributes

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

High

Heading elements are not in a sequentially-descending order

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

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

radio21.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

radio21.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

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

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

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Radio21.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Radio21.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

radio21.de

Open Graph data is detected on the main page of RADIO 21. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: