Tools & Wizards About Us
en.czech-unesco.org screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% 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

  • 88

    SEO

    Google-friendlier than
    65% of websites

en.czech-unesco.org

Seventeen Czech Wonders of the World - UNESCO Czech heritage

Page Load Speed

7.4 sec in total

First Response

595 ms

Resources Loaded

6.3 sec

Page Rendered

464 ms

en.czech-unesco.org screenshot

About Website

Visit en.czech-unesco.org now to see the best up-to-date En Czech UNESCO content for Russia and also check out these interesting facts you probably never knew about en.czech-unesco.org

The official website of the Czech UNESCO Heritage presents heritage sites entered onto the UNESCO World Heritage list and cities in which they are found.

Visit en.czech-unesco.org

Key Findings

We analyzed En.czech-unesco.org page load time and found that the first response time was 595 ms and then it took 6.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

en.czech-unesco.org performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value15.0 s

0/100

25%

SI (Speed Index)

Value10.2 s

9/100

10%

TBT (Total Blocking Time)

Value400 ms

68/100

30%

CLS (Cumulative Layout Shift)

Value0.564

12/100

15%

TTI (Time to Interactive)

Value13.1 s

12/100

10%

Network Requests Diagram

en.czech-unesco.org

595 ms

js

82 ms

wmp_bar.css

349 ms

font-awesome.min.css

53 ms

bootstrap.min.css

437 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 64% of them (58 requests) were addressed to the original En.czech-unesco.org, 11% (10 requests) were made to Static.xx.fbcdn.net and 6% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (5.2 sec) belongs to the original domain En.czech-unesco.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 622.0 kB (8%)

Content Size

7.9 MB

After Optimization

7.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of En.czech-unesco.org main page is 7.9 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. 60% of websites need less resources to load. Images take 7.3 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 34.2 kB

  • Original 41.9 kB
  • After minification 34.1 kB
  • After compression 7.7 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 7.8 kB, which is 19% 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 34.2 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 207.4 kB

  • Original 7.3 MB
  • After minification 7.1 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. En Czech UNESCO images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 194.6 kB

  • Original 307.4 kB
  • After minification 271.7 kB
  • After compression 112.8 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 194.6 kB or 63% of the original size.

CSS Optimization

-85%

Potential reduce by 185.9 kB

  • Original 219.4 kB
  • After minification 204.2 kB
  • After compression 33.5 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. En.czech-unesco.org needs all CSS files to be minified and compressed as it can save up to 185.9 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (41%)

Requests Now

81

After Optimization

48

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of En Czech UNESCO. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

en.czech-unesco.org

en.czech-unesco.org

595 ms

js

js

82 ms

wmp_bar.css

wmp_bar.css

349 ms

font-awesome.min.css

font-awesome.min.css

53 ms

bootstrap.min.css

bootstrap.min.css

437 ms

fonts.css

fonts.css

214 ms

style.css

style.css

328 ms

itinerar.css

itinerar.css

230 ms

responsive.css

responsive.css

238 ms

ekko-lightbox.css

ekko-lightbox.css

54 ms

calendar.css

calendar.css

239 ms

jquery-3.3.1.min.js

jquery-3.3.1.min.js

533 ms

jquery-ui.min.js

jquery-ui.min.js

36 ms

calendar.js

calendar.js

462 ms

calendar-setup.js

calendar-setup.js

360 ms

calendar-en.js

calendar-en.js

361 ms

zoommap.js

zoommap.js

448 ms

js

js

116 ms

popper.min.js

popper.min.js

475 ms

bootstrap.min.js

bootstrap.min.js

717 ms

custom.js

custom.js

593 ms

itinerar.js

itinerar.js

594 ms

ekko-lightbox.min.js

ekko-lightbox.min.js

62 ms

css

css

35 ms

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65fc9fb4897a89789352e211ca2d398f1ecd7

119 ms

2d280461b029134123f1f1a356e176b121995

2d280461b029134123f1f1a356e176b121995

123 ms

search_icon.png

search_icon.png

124 ms

right_arrow_solid.png

right_arrow_solid.png

116 ms

def14e8541708294d7558fdf2126ef27219b6

def14e8541708294d7558fdf2126ef27219b6

951 ms

2df41f38afef75d8c599483001daf2e1219c2

2df41f38afef75d8c599483001daf2e1219c2

837 ms

279dc09a13b9dc662c574a804d650d95219bf

279dc09a13b9dc662c574a804d650d95219bf

924 ms

c8720c9e82b818798e7b391fd62adf33219bc

c8720c9e82b818798e7b391fd62adf33219bc

1003 ms

5b46370c9fd40a27ce2b2abc281064de21e64

5b46370c9fd40a27ce2b2abc281064de21e64

1264 ms

0aaf61723a352ba7ea1be4502df85765219b0

0aaf61723a352ba7ea1be4502df85765219b0

1002 ms

bc0573e9c47c22585365c4c8351b46b1219cb

bc0573e9c47c22585365c4c8351b46b1219cb

1541 ms

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06d801cb636235b298c40029ad9921e7219b3

1986 ms

539a4ba7e9fbd80f14780f0d49c1578621974

539a4ba7e9fbd80f14780f0d49c1578621974

1867 ms

631fe0c7519b232b0a0f6b965af015a9219c8

631fe0c7519b232b0a0f6b965af015a9219c8

2291 ms

58fe2003170159fd68519b7f9840fdb2219b9

58fe2003170159fd68519b7f9840fdb2219b9

1674 ms

164f545c22e17e5e9298b1c84b9e3e1e219ce

164f545c22e17e5e9298b1c84b9e3e1e219ce

2074 ms

8a701b176cc140888936dad15c5d046a219d1

8a701b176cc140888936dad15c5d046a219d1

2404 ms

map.png

map.png

1795 ms

cropresize.php

cropresize.php

2139 ms

cropresize.php

cropresize.php

2323 ms

cropresize.php

cropresize.php

2471 ms

cropresize.php

cropresize.php

3129 ms

cropresize.php

cropresize.php

2731 ms

cropresize.php

cropresize.php

3582 ms

cropresize.php

cropresize.php

4103 ms

cropresize.php

cropresize.php

3159 ms

cropresize.php

cropresize.php

3694 ms

cropresize.php

cropresize.php

3306 ms

cropresize.php

cropresize.php

4818 ms

cropresize.php

cropresize.php

3743 ms

cropresize.php

cropresize.php

4149 ms

cropresize.php

cropresize.php

4439 ms

analytics.js

analytics.js

15 ms

group.php

group.php

233 ms

cropresize.php

cropresize.php

4275 ms

cropresize.php

cropresize.php

5153 ms

cropresize.php

cropresize.php

4815 ms

collect

collect

69 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

26 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

31 ms

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

67 ms

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

89 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

89 ms

gallery_image_15.png

gallery_image_15.png

4149 ms

external2.gif

external2.gif

4259 ms

ministerstvo_pro_logo.png

ministerstvo_pro_logo.png

4289 ms

login_white.png

login_white.png

4374 ms

matomo.js

matomo.js

371 ms

down_arrow.png

down_arrow.png

4350 ms

js

js

41 ms

YSVNzQMiK3c.css

YSVNzQMiK3c.css

16 ms

suDK1ROvaWG.css

suDK1ROvaWG.css

19 ms

Y7Y-iHUxgoM.js

Y7Y-iHUxgoM.js

25 ms

5SibLyTrxjh.js

5SibLyTrxjh.js

8 ms

css;base64,

css;base64,

2 ms

css;%20charset=utf-8;base64,I2Jvb3Rsb2FkZXJfUF9tcjVWRXtoZWlnaHQ6NDJweDt9LmJvb3Rsb2FkZXJfUF9tcjVWRXtkaXNwbGF5OmJsb2NrIWltcG9ydGFudDt9

css;%20charset=utf-8;base64,I2Jvb3Rsb2FkZXJfUF9tcjVWRXtoZWlnaHQ6NDJweDt9LmJvb3Rsb2FkZXJfUF9tcjVWRXtkaXNwbGF5OmJsb2NrIWltcG9ydGFudDt9

2 ms

Q0ZuFNTN8tK.png

Q0ZuFNTN8tK.png

7 ms

o1ndYS2og_B.js

o1ndYS2og_B.js

3 ms

4Dr55_uVn75.js

4Dr55_uVn75.js

4 ms

8IAOdJiZGNE.js

8IAOdJiZGNE.js

14 ms

X7GNFODmu6E.js

X7GNFODmu6E.js

14 ms

qvzskUrYlYC.js

qvzskUrYlYC.js

15 ms

matomo.php

matomo.php

235 ms

hsts-pixel.gif

hsts-pixel.gif

16 ms

itinerarAjax.php

itinerarAjax.php

4162 ms

tripplanner.jpg

tripplanner.jpg

3680 ms

Accessibility Review

en.czech-unesco.org 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.

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

en.czech-unesco.org 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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

en.czech-unesco.org SEO score

88

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 En.czech-unesco.org 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 En.czech-unesco.org 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

en.czech-unesco.org

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