Tools & Wizards About Us
impulsb.cz screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

impulsb.cz

Zvony, zvonkohry, věžní a fasádní hodiny, pružné sloupky, zvoničky | Impulsb.com

Page Load Speed

2.9 sec in total

First Response

304 ms

Resources Loaded

2.4 sec

Page Rendered

221 ms

impulsb.cz screenshot

About Website

Visit impulsb.cz now to see the best up-to-date Impulsb content and also check out these interesting facts you probably never knew about impulsb.cz

Vyrábíme a dodáváme lineární motory, věžní hodiny, rozhlasové ústředny, spínací hodiny, zvony, zvonkohry, ohebné pružné sloupky.

Visit impulsb.cz

Key Findings

We analyzed Impulsb.cz page load time and found that the first response time was 304 ms and then it took 2.6 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

impulsb.cz performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value11.0 s

0/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value740 ms

40/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

Network Requests Diagram

impulsb.cz

304 ms

www.impulsb.com

828 ms

rs.css

117 ms

bannery.css

226 ms

jquery.fancybox-1.3.2.css

231 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Impulsb.cz, 91% (43 requests) were made to Impulsb.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (828 ms) relates to the external source Impulsb.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 137.8 kB (24%)

Content Size

586.0 kB

After Optimization

448.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Impulsb.cz main page is 586.0 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. 30% of websites need less resources to load. Images take 392.0 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 19.3 kB

  • Original 26.6 kB
  • After minification 26.1 kB
  • After compression 7.3 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 19.3 kB or 73% of the original size.

Image Optimization

-2%

Potential reduce by 7.8 kB

  • Original 392.0 kB
  • After minification 384.2 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. Impulsb images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 87.7 kB

  • Original 139.8 kB
  • After minification 124.2 kB
  • After compression 52.1 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 87.7 kB or 63% of the original size.

CSS Optimization

-83%

Potential reduce by 23.0 kB

  • Original 27.6 kB
  • After minification 21.2 kB
  • After compression 4.6 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. Impulsb.cz needs all CSS files to be minified and compressed as it can save up to 23.0 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (51%)

Requests Now

45

After Optimization

22

  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Impulsb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

impulsb.cz

impulsb.cz

304 ms

www.impulsb.com

www.impulsb.com

828 ms

rs.css

rs.css

117 ms

bannery.css

bannery.css

226 ms

jquery.fancybox-1.3.2.css

jquery.fancybox-1.3.2.css

231 ms

thickbox.css

thickbox.css

233 ms

jquery.js

jquery.js

355 ms

jquery.fancybox-1.3.2.js

jquery.fancybox-1.3.2.js

234 ms

jquery.easing-1.3.pack.js

jquery.easing-1.3.pack.js

238 ms

richhtmlticker.js

richhtmlticker.js

337 ms

thickbox.js

thickbox.js

346 ms

menu.js

menu.js

347 ms

ga.js

ga.js

44 ms

get_flash_player.gif

get_flash_player.gif

36 ms

bgh.jpg

bgh.jpg

688 ms

holder_v.jpg

holder_v.jpg

119 ms

logo.png

logo.png

122 ms

ok.gif

ok.gif

124 ms

inp1.gif

inp1.gif

113 ms

otevrit.gif

otevrit.gif

120 ms

zrusit.gif

zrusit.gif

225 ms

bila_cara.gif

bila_cara.gif

233 ms

mapa.gif

mapa.gif

233 ms

menu_bg_h.png

menu_bg_h.png

235 ms

menu_bg_h2.png

menu_bg_h2.png

239 ms

cara2.gif

cara2.gif

336 ms

tl1.gif

tl1.gif

347 ms

tl2.gif

tl2.gif

373 ms

zuby.png

zuby.png

349 ms

pruhledne1.png

pruhledne1.png

357 ms

archiv.png

archiv.png

456 ms

bublina.png

bublina.png

463 ms

zvon_uvod.png

zvon_uvod.png

581 ms

vsechny_reference.png

vsechny_reference.png

515 ms

malenovice-006_1456920396.jpg

malenovice-006_1456920396.jpg

510 ms

lupa.png

lupa.png

567 ms

221_1456392986.jpg

221_1456392986.jpg

610 ms

brezany-020_1456392327.jpg

brezany-020_1456392327.jpg

631 ms

fb.png

fb.png

632 ms

yt.png

yt.png

678 ms

inp2.png

inp2.png

697 ms

inp3.png

inp3.png

725 ms

595.png

595.png

746 ms

odeslat.png

odeslat.png

752 ms

loadingAnimation.gif

loadingAnimation.gif

789 ms

textSlide1.jpg

textSlide1.jpg

823 ms

__utm.gif

__utm.gif

12 ms

Accessibility Review

impulsb.cz accessibility score

86

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.

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

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

impulsb.cz best practices score

75

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

impulsb.cz 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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Impulsb.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 Impulsb.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

impulsb.cz

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