Tools & Wizards About Us
sennheiser.cz screenshot

Report Summary

  • 54

    Performance

    Renders faster than
    71% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

sennheiser.cz

Úvodní strana - SENNHEISER

Page Load Speed

3.8 sec in total

First Response

449 ms

Resources Loaded

3.1 sec

Page Rendered

281 ms

sennheiser.cz screenshot

About Website

Welcome to sennheiser.cz homepage info - get ready to check SENNHEISER best content for Czech Republic right away, or after learning these important things about sennheiser.cz

ZADAT description

Visit sennheiser.cz

Key Findings

We analyzed Sennheiser.cz page load time and found that the first response time was 449 ms and then it took 3.3 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

sennheiser.cz performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value13.9 s

0/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.448

20/100

15%

TTI (Time to Interactive)

Value4.0 s

87/100

10%

Network Requests Diagram

sennheiser.cz

449 ms

sennheiser.cz

664 ms

index.css

106 ms

jquery-1.7.2.min.js

312 ms

cookieconsent.min.css

30 ms

Our browser made a total of 81 requests to load all elements on the main page. We found that 95% of them (77 requests) were addressed to the original Sennheiser.cz, 2% (2 requests) were made to Cdnjs.cloudflare.com and 2% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Sennheiser.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 527.7 kB (41%)

Content Size

1.3 MB

After Optimization

767.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sennheiser.cz main page is 1.3 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. 40% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 25.1 kB

  • Original 31.0 kB
  • After minification 25.6 kB
  • After compression 5.8 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 5.4 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 25.1 kB or 81% of the original size.

Image Optimization

-42%

Potential reduce by 498.4 kB

  • Original 1.2 MB
  • After minification 695.8 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, SENNHEISER needs image optimization as it can save up to 498.4 kB or 42% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-4%

Potential reduce by 2.4 kB

  • Original 58.4 kB
  • After minification 58.4 kB
  • After compression 56.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-15%

Potential reduce by 1.7 kB

  • Original 11.4 kB
  • After minification 11.4 kB
  • After compression 9.7 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. Sennheiser.cz needs all CSS files to be minified and compressed as it can save up to 1.7 kB or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (16%)

Requests Now

79

After Optimization

66

  • Images
  • JavaScript
  • CSS

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SENNHEISER. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sennheiser.cz

sennheiser.cz

449 ms

sennheiser.cz

sennheiser.cz

664 ms

index.css

index.css

106 ms

jquery-1.7.2.min.js

jquery-1.7.2.min.js

312 ms

cookieconsent.min.css

cookieconsent.min.css

30 ms

cookieconsent.min.js

cookieconsent.min.js

40 ms

home.css

home.css

308 ms

panter_common.css

panter_common.css

309 ms

index.js

index.js

309 ms

ga.js

ga.js

62 ms

pozadi_textura_kostka.png

pozadi_textura_kostka.png

137 ms

panter-white.7f9f787f4bca66b2a3f73b92effe06731.png

panter-white.7f9f787f4bca66b2a3f73b92effe06731.png

138 ms

pantershop.7fb6985dac6f9c0e37a21843a03ca4441.png

pantershop.7fb6985dac6f9c0e37a21843a03ca4441.png

168 ms

x_sennheiser.png

x_sennheiser.png

136 ms

x_neumann.png

x_neumann.png

138 ms

x_rycote.png

x_rycote.png

239 ms

x_sounddevices.png

x_sounddevices.png

239 ms

x_km.png

x_km.png

239 ms

x_yamaha.png

x_yamaha.png

240 ms

x_fohhm.png

x_fohhm.png

286 ms

x_audiodev.png

x_audiodev.png

341 ms

x_ambient.png

x_ambient.png

340 ms

x_tritonaudio.png

x_tritonaudio.png

342 ms

x_dbaudio.png

x_dbaudio.png

341 ms

z_schulzebrakel.png

z_schulzebrakel.png

508 ms

z_epos.png

z_epos.png

521 ms

pozadi_textura_prechod.png

pozadi_textura_prechod.png

445 ms

pozadi_dekorace.png

pozadi_dekorace.png

1261 ms

obsah_podklad.png

obsah_podklad.png

442 ms

110_IE-900_11_new.png

110_IE-900_11_new.png

648 ms

110on_IE-900_11_new.png

110on_IE-900_11_new.png

749 ms

24_AMBEO-Soundbar_02_seda.jpg

24_AMBEO-Soundbar_02_seda.jpg

544 ms

24on_AMBEO-Soundbar_02.jpg

24on_AMBEO-Soundbar_02.jpg

627 ms

54_youtube_icon_rgbBW.jpg

54_youtube_icon_rgbBW.jpg

637 ms

54on_youtube_icon_rgb.jpg

54on_youtube_icon_rgb.jpg

647 ms

62_mom4_BW.jpg

62_mom4_BW.jpg

746 ms

62on_mom4.jpg

62on_mom4.jpg

755 ms

45_neumann_square-white.jpg

45_neumann_square-white.jpg

748 ms

45on_neumann_square-black.jpg

45on_neumann_square-black.jpg

749 ms

53_f_logo_RGB-Grey_1024.png

53_f_logo_RGB-Grey_1024.png

866 ms

53on_f_logo_RGB-Blue_1024.png

53on_f_logo_RGB-Blue_1024.png

850 ms

93_wsm-BW-.png

93_wsm-BW-.png

850 ms

93on_wsm--.png

93on_wsm--.png

852 ms

34_logo_instagram_BW.png

34_logo_instagram_BW.png

873 ms

34on_logo_instagram.png

34on_logo_instagram.png

951 ms

13_07_partner_cb.png

13_07_partner_cb.png

928 ms

__utm.gif

__utm.gif

12 ms

13on_07_partner.png

13on_07_partner.png

826 ms

101_EW-DP_Product_Shot_In_Use_25_BW.jpg

101_EW-DP_Product_Shot_In_Use_25_BW.jpg

853 ms

101on_EW-DP_Product_Shot_In_Use_25.jpg

101on_EW-DP_Product_Shot_In_Use_25.jpg

860 ms

79_LOGO-Panter-30.jpg

79_LOGO-Panter-30.jpg

922 ms

79on_LOGO-Panter-30.jpg

79on_LOGO-Panter-30.jpg

893 ms

84_RS_195BW.jpg

84_RS_195BW.jpg

825 ms

84on_RS_195.jpg

84on_RS_195.jpg

872 ms

38_farna_index.jpg

38_farna_index.jpg

876 ms

38on_farna_index_hov.jpg

38on_farna_index_hov.jpg

923 ms

138_132_ua.png

138_132_ua.png

877 ms

69_MOMENTUM-True-Wireless-4-black-graphite_01_mensi.png

69_MOMENTUM-True-Wireless-4-black-graphite_01_mensi.png

825 ms

69on_MOMENTUM-True-Wireless-4-black-graphite_01_mensi.png

69on_MOMENTUM-True-Wireless-4-black-graphite_01_mensi.png

888 ms

97_IE_500BW.jpg

97_IE_500BW.jpg

891 ms

97on_IE_500.jpg

97on_IE_500.jpg

922 ms

108_Profile_USB_Microphone_Streamer_In_Use_13BW.jpg

108_Profile_USB_Microphone_Streamer_In_Use_13BW.jpg

822 ms

108on_Profile_USB_Microphone_Streamer_In_Use_13.jpg

108on_Profile_USB_Microphone_Streamer_In_Use_13.jpg

823 ms

86_sldw_tc_bw.jpg

86_sldw_tc_bw.jpg

841 ms

86on_sldw_tc_col.jpg

86on_sldw_tc_col.jpg

830 ms

index_zajimavosti_podklad.png

index_zajimavosti_podklad.png

818 ms

index_zajimavosti_nadpis_podklad.png

index_zajimavosti_nadpis_podklad.png

738 ms

index_zajimavosti_archiv_podklad.png

index_zajimavosti_archiv_podklad.png

729 ms

index_zajimavosti_nadpis_stin.gif

index_zajimavosti_nadpis_stin.gif

723 ms

index_zajimavosti_rozdeleni.png

index_zajimavosti_rozdeleni.png

820 ms

60_eshop_clipmic_BW.jpg

60_eshop_clipmic_BW.jpg

723 ms

60on_eshop_clipmic_COL.jpg

60on_eshop_clipmic_COL.jpg

718 ms

sennheiser_logo.png

sennheiser_logo.png

719 ms

void.gif

void.gif

721 ms

menu_logo_panter.gif

menu_logo_panter.gif

717 ms

menu_kategorie_rozdeleni.png

menu_kategorie_rozdeleni.png

718 ms

menu_hledej_podklad.png

menu_hledej_podklad.png

736 ms

login_podklad.png

login_podklad.png

715 ms

login_form_podklad.gif

login_form_podklad.gif

720 ms

pata_ikona_facebook.png

pata_ikona_facebook.png

697 ms

pata_ikona_youtube.png

pata_ikona_youtube.png

621 ms

Accessibility Review

sennheiser.cz accessibility score

78

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

sennheiser.cz best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

sennheiser.cz SEO score

62

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

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

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

sennheiser.cz

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