Tools & Wizards About Us
vltava.cz screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

vltava.cz

Home page

Page Load Speed

3.7 sec in total

First Response

831 ms

Resources Loaded

2.7 sec

Page Rendered

202 ms

vltava.cz screenshot

About Website

Visit vltava.cz now to see the best up-to-date Vltava content for Czech Republic and also check out these interesting facts you probably never knew about vltava.cz

Eshop s nabídkou hudebních nosičů českých i zahraničních vydavatelů. Množství titulů skladem, akční ceny. Provozuje firma s dlouholetou historií na trhu hudebních nosičů.

Visit vltava.cz

Key Findings

We analyzed Vltava.cz page load time and found that the first response time was 831 ms and then it took 2.9 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

vltava.cz performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value10.1 s

0/100

25%

SI (Speed Index)

Value10.2 s

9/100

10%

TBT (Total Blocking Time)

Value230 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.8 s

17/100

10%

Network Requests Diagram

vltava.cz

831 ms

styles.css

392 ms

flexslider.css

298 ms

tony.css

300 ms

widgets.css

300 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 98% of them (58 requests) were addressed to the original Vltava.cz, 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (892 ms) belongs to the original domain Vltava.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.4 MB (77%)

Content Size

1.8 MB

After Optimization

415.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vltava.cz main page is 1.8 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. 45% of websites need less resources to load. Javascripts take 783.8 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 620.6 kB

  • Original 692.2 kB
  • After minification 675.1 kB
  • After compression 71.6 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. 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 620.6 kB or 90% of the original size.

Image Optimization

-5%

Potential reduce by 7.9 kB

  • Original 151.8 kB
  • After minification 143.9 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. Vltava images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 611.9 kB

  • Original 783.8 kB
  • After minification 633.8 kB
  • After compression 172.0 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 611.9 kB or 78% of the original size.

CSS Optimization

-85%

Potential reduce by 159.0 kB

  • Original 186.9 kB
  • After minification 144.9 kB
  • After compression 27.9 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. Vltava.cz needs all CSS files to be minified and compressed as it can save up to 159.0 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (52%)

Requests Now

56

After Optimization

27

  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vltava. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vltava.cz

vltava.cz

831 ms

styles.css

styles.css

392 ms

flexslider.css

flexslider.css

298 ms

tony.css

tony.css

300 ms

widgets.css

widgets.css

300 ms

chosen.css

chosen.css

301 ms

halo_filterproduct.css

halo_filterproduct.css

302 ms

cookielaw.css

cookielaw.css

401 ms

custommenu.css

custommenu.css

401 ms

prototype.js

prototype.js

788 ms

ccard.js

ccard.js

403 ms

validation.js

validation.js

493 ms

builder.js

builder.js

487 ms

effects.js

effects.js

590 ms

dragdrop.js

dragdrop.js

591 ms

controls.js

controls.js

592 ms

slider.js

slider.js

585 ms

js.js

js.js

593 ms

form.js

form.js

684 ms

menu.js

menu.js

688 ms

translate.js

translate.js

689 ms

cookies.js

cookies.js

691 ms

jquery-1.8.3.min.js

jquery-1.8.3.min.js

807 ms

jquery-ui-1.8.9.custom.min.js

jquery-ui-1.8.9.custom.min.js

880 ms

chosen.jquery.js

chosen.jquery.js

805 ms

jquery.flexslider.js

jquery.flexslider.js

806 ms

ebajes.js

ebajes.js

806 ms

tony.js

tony.js

891 ms

halo_filterproduct.js

halo_filterproduct.js

891 ms

custommenu.js

custommenu.js

892 ms

gtm.js

gtm.js

54 ms

logo.gif

logo.gif

101 ms

i_asc_arrow.gif

i_asc_arrow.gif

102 ms

8e0bbd7e17667cc174bcf562ee5c8834_a8a6fe7589e4cf6f2aff59697e99f00f.jpg

8e0bbd7e17667cc174bcf562ee5c8834_a8a6fe7589e4cf6f2aff59697e99f00f.jpg

102 ms

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103 ms

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101 ms

a73cbedfd420676f16859dd3a3ce308b_5fa5c68afad83ea5b7f6c4ee477c88ad.jpg

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102 ms

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198 ms

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200 ms

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200 ms

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200 ms

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200 ms

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200 ms

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298 ms

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299 ms

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298 ms

fe512e1f4d227b15730f082d7883da85_8f77b2c4893004adf2a003a817060a51.jpg

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296 ms

954d240fea7740494f21b50b5a334542_817711441d5611d6f4d0bd29d138bea8.jpg

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298 ms

top-cart.png

top-cart.png

290 ms

bkg_form-search.gif

bkg_form-search.gif

389 ms

icon_search.png

icon_search.png

387 ms

btn_search.gif

btn_search.gif

389 ms

boder-menu.png

boder-menu.png

380 ms

bkg-toolbar.png

bkg-toolbar.png

361 ms

bkg-bottom-img.png

bkg-bottom-img.png

362 ms

i_links.png

i_links.png

458 ms

bkg-footer.png

bkg-footer.png

446 ms

bkg-top-footer.png

bkg-top-footer.png

445 ms

print.css

print.css

101 ms

Accessibility Review

vltava.cz accessibility score

63

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.

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 IDs are not unique

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

Low

No form fields have multiple labels

High

Form elements do not have associated labels

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

vltava.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

vltava.cz SEO score

83

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

High

Tap targets are not sized appropriately

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 Vltava.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 Vltava.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

vltava.cz

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