Tools & Wizards About Us
mzv.cz screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

mzv.cz

Ministry of Foreign Affairs of the Czech Republic

Page Load Speed

23.2 sec in total

First Response

130 ms

Resources Loaded

22.8 sec

Page Rendered

295 ms

mzv.cz screenshot

About Website

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

Prezentace MZV ČR, poskytující aktuální informace o ministerstvu, cestách do zahraničí, diplomatických misích, úřadech v zahraničí

Visit mzv.cz

Key Findings

We analyzed Mzv.cz page load time and found that the first response time was 130 ms and then it took 23.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

mzv.cz performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value4.7 s

32/100

25%

SI (Speed Index)

Value20.7 s

0/100

10%

TBT (Total Blocking Time)

Value4,190 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.436

21/100

15%

TTI (Time to Interactive)

Value18.9 s

3/100

10%

Network Requests Diagram

130 ms

-logic-mzv-resources-algoliasearch_css.css

107 ms

-logic-mzv-resources-general_css.css

212 ms

-logic-mzv-resources-layout_css.css

318 ms

-logic-mzv-resources-slimbox_css.css

318 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Mzv.cz, 4% (2 requests) were made to Google.com and 4% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (20.5 sec) relates to the external source Toplist.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 527.1 kB (33%)

Content Size

1.6 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Mzv.cz main page is 1.6 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. Images take 868.9 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 20.0 kB

  • Original 27.1 kB
  • After minification 26.0 kB
  • After compression 7.1 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 20.0 kB or 74% of the original size.

Image Optimization

-9%

Potential reduce by 76.1 kB

  • Original 868.9 kB
  • After minification 792.8 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. Mzv images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 427.9 kB

  • Original 666.2 kB
  • After minification 624.1 kB
  • After compression 238.3 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 427.9 kB or 64% of the original size.

CSS Optimization

-18%

Potential reduce by 3.1 kB

  • Original 17.6 kB
  • After minification 17.6 kB
  • After compression 14.5 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. Mzv.cz needs all CSS files to be minified and compressed as it can save up to 3.1 kB or 18% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (38%)

Requests Now

52

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mzv. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

130 ms

-logic-mzv-resources-algoliasearch_css.css

-logic-mzv-resources-algoliasearch_css.css

107 ms

-logic-mzv-resources-general_css.css

-logic-mzv-resources-general_css.css

212 ms

-logic-mzv-resources-layout_css.css

-logic-mzv-resources-layout_css.css

318 ms

-logic-mzv-resources-slimbox_css.css

-logic-mzv-resources-slimbox_css.css

318 ms

468224_348497_contentslider.js

468224_348497_contentslider.js

317 ms

671959_573621_swf_player.js

671959_573621_swf_player.js

317 ms

jsapi

jsapi

15 ms

1221237_2495001_jquery.js

1221237_2495001_jquery.js

526 ms

1221235_1931192_tdi_bundle.min_1._7._6.js

1221235_1931192_tdi_bundle.min_1._7._6.js

421 ms

2753009_1890150_algoliasearch

2753009_1890150_algoliasearch

528 ms

2753011_1890157_autocomplete

2753011_1890157_autocomplete

526 ms

2753013_1890161_instantsearch

2753013_1890161_instantsearch

945 ms

12466_3000860_slimbox.js

12466_3000860_slimbox.js

421 ms

467639_348115_rotate2com.js

467639_348115_rotate2com.js

527 ms

223971_1912674_functions.js

223971_1912674_functions.js

530 ms

297997_192886_events.js

297997_192886_events.js

630 ms

-logic-mzv-resources-simplemaps_data.js

-logic-mzv-resources-simplemaps_data.js

780 ms

3984245_2421781_worldmap.js

3984245_2421781_worldmap.js

1054 ms

1583403_2841264_cookie_notification.js

1583403_2841264_cookie_notification.js

631 ms

1254117_1199650_carousel.js

1254117_1199650_carousel.js

635 ms

loader.js

loader.js

17 ms

-logic-mzv-resources-content_slider_css.css

-logic-mzv-resources-content_slider_css.css

421 ms

-logic-mzv-resources-simplemap_css.css

-logic-mzv-resources-simplemap_css.css

422 ms

count.asp

count.asp

20488 ms

661666_637430_mzv_en.png

661666_637430_mzv_en.png

406 ms

676285_580837_hledat_lupa.png

676285_580837_hledat_lupa.png

405 ms

5439640_3215221_DSC_0101.jpg

5439640_3215221_DSC_0101.jpg

406 ms

5449297_3218570_WhatsApp_Image_2024_05_01_at_20._41._10.jpg

5449297_3218570_WhatsApp_Image_2024_05_01_at_20._41._10.jpg

407 ms

5161100_3090810_signal_2023_09_01_154034_002.jpg

5161100_3090810_signal_2023_09_01_154034_002.jpg

409 ms

4882249_2964607_cernin.png

4882249_2964607_cernin.png

405 ms

5114253_3063400__031Fasada_pri_zapadnim_svetle__Large_.jpg

5114253_3063400__031Fasada_pri_zapadnim_svetle__Large_.jpg

407 ms

5449289_3218570_WhatsApp_Image_2024_05_01_at_20._41._10.jpg

5449289_3218570_WhatsApp_Image_2024_05_01_at_20._41._10.jpg

406 ms

5442017_3216028_DSC_3361.jpg

5442017_3216028_DSC_3361.jpg

407 ms

5114233_3063395__004.jpg

5114233_3063395__004.jpg

409 ms

5449306_3218594_DSC_4906.jpg

5449306_3218594_DSC_4906.jpg

408 ms

5439632_3215221_DSC_0101.jpg

5439632_3215221_DSC_0101.jpg

409 ms

5440996_3215549__0.jpg

5440996_3215549__0.jpg

409 ms

5435158_3214195_NL_0.jpg

5435158_3214195_NL_0.jpg

410 ms

5446606_3217588_Vystrizek.jpg

5446606_3217588_Vystrizek.jpg

429 ms

4267639_2776541_Jan_Lipavsky.jpg

4267639_2776541_Jan_Lipavsky.jpg

438 ms

772077_1551985_facebook_dreamstale25.png

772077_1551985_facebook_dreamstale25.png

430 ms

772079_3109639_logo_black.png

772079_3109639_logo_black.png

434 ms

776764_1551987_linkedin_dreamstale45.png

776764_1551987_linkedin_dreamstale45.png

437 ms

2716473_1862214_ig_logo_email.png

2716473_1862214_ig_logo_email.png

499 ms

685483_3187932__685483_2850058_ceskacentra_logo_zakladni_rgb1.jpg

685483_3187932__685483_2850058_ceskacentra_logo_zakladni_rgb1.jpg

530 ms

5094654_3057771_final.jpg

5094654_3057771_final.jpg

534 ms

5120778_3065930_unnamed.png

5120778_3065930_unnamed.png

538 ms

5346420_3172136_Year_of_Czech_Music_logo_horizontalni_cerne_rgb.png

5346420_3172136_Year_of_Czech_Music_logo_horizontalni_cerne_rgb.png

540 ms

5434503_3214122_Bannery_MZV_web__1_.png

5434503_3214122_Bannery_MZV_web__1_.png

542 ms

2221118_1637601_ezgif.com_crop.gif

2221118_1637601_ezgif.com_crop.gif

818 ms

ga.js

ga.js

23 ms

272247_304713_google_analytics.js

272247_304713_google_analytics.js

235 ms

__utm.gif

__utm.gif

15 ms

collect

collect

27 ms

ga-audiences

ga-audiences

88 ms

-logic-mzv-resources-print_css.css

-logic-mzv-resources-print_css.css

110 ms

Accessibility Review

mzv.cz accessibility score

81

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

High

<html> element does not have a valid value for its [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

Links do not have a discernible name

Best Practices

mzv.cz best practices score

67

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

mzv.cz SEO score

82

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

mzv.cz

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