Tools & Wizards About Us
svetknihy.cz screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

svetknihy.cz

Mezinárodní knižní veletrh a literární festival Svět knihy Praha

Page Load Speed

8.4 sec in total

First Response

322 ms

Resources Loaded

7.5 sec

Page Rendered

508 ms

svetknihy.cz screenshot

About Website

Click here to check amazing Svet Knihy content for Czech Republic. Otherwise, check out these important facts you probably never knew about svetknihy.cz

Svět knihy Praha - mezinárodní knižní veletrh a literární festival.

Visit svetknihy.cz

Key Findings

We analyzed Svetknihy.cz page load time and found that the first response time was 322 ms and then it took 8.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

svetknihy.cz performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value26.4 s

0/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value320 ms

77/100

30%

CLS (Cumulative Layout Shift)

Value0.494

17/100

15%

TTI (Time to Interactive)

Value23.5 s

1/100

10%

Network Requests Diagram

svetknihy.cz

322 ms

svetknihy.cz

2951 ms

owl.carousel.min.css

99 ms

magnific-popup.css

197 ms

priority-nav.css

317 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 43% of them (39 requests) were addressed to the original Svetknihy.cz, 54% (49 requests) were made to Content-core.grandit.cz and 1% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Svetknihy.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (16%)

Content Size

6.6 MB

After Optimization

5.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Svetknihy.cz main page is 6.6 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. 60% of websites need less resources to load. Images take 5.1 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 76.1 kB

  • Original 89.1 kB
  • After minification 57.7 kB
  • After compression 13.1 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. This page needs HTML code to be minified as it can gain 31.4 kB, which is 35% 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 76.1 kB or 85% of the original size.

Image Optimization

-2%

Potential reduce by 78.1 kB

  • Original 5.1 MB
  • After minification 5.0 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. Svet Knihy images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 730.9 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 466.3 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 730.9 kB or 61% of the original size.

CSS Optimization

-82%

Potential reduce by 188.8 kB

  • Original 230.2 kB
  • After minification 224.5 kB
  • After compression 41.3 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. Svetknihy.cz needs all CSS files to be minified and compressed as it can save up to 188.8 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (35%)

Requests Now

72

After Optimization

47

  • Images
  • JavaScript
  • CSS

The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Svet Knihy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

svetknihy.cz

svetknihy.cz

322 ms

svetknihy.cz

svetknihy.cz

2951 ms

owl.carousel.min.css

owl.carousel.min.css

99 ms

magnific-popup.css

magnific-popup.css

197 ms

priority-nav.css

priority-nav.css

317 ms

daterangepicker.css

daterangepicker.css

278 ms

fullcalendar.min.css

fullcalendar.min.css

371 ms

fullcalendar.print.min.css

fullcalendar.print.min.css

279 ms

scheduler.min.css

scheduler.min.css

319 ms

main.min.css

main.min.css

583 ms

cookies_stripe.css

cookies_stripe.css

371 ms

cookie_acceptance.js

cookie_acceptance.js

372 ms

jquery-3.4.1.min.js

jquery-3.4.1.min.js

649 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

660 ms

bootstrap-select.min.js

bootstrap-select.min.js

551 ms

owl.carousel.min.js

owl.carousel.min.js

551 ms

magnific-popup.min.js

magnific-popup.min.js

555 ms

priority-nav.min.js

priority-nav.min.js

677 ms

moment.min.js

moment.min.js

678 ms

jquery.mark.min.js

jquery.mark.min.js

685 ms

fullcalendar.min.js

fullcalendar.min.js

871 ms

locale-all.js

locale-all.js

865 ms

scheduler.min.js

scheduler.min.js

799 ms

daterangepicker.js

daterangepicker.js

830 ms

jquery.serialize-object.min.js

jquery.serialize-object.min.js

737 ms

api.js

api.js

40 ms

main.min.js

main.min.js

833 ms

css2

css2

40 ms

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06-homepage-SK-2880x720.jpg

560 ms

01-homepage-SK-2880x720.jpg

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555 ms

02-homepage-SK-2880x720.jpg

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555 ms

Podekovani_na-web_cerna.jpg

Podekovani_na-web_cerna.jpg

555 ms

710-State-Emergency-Service-of-Ukraine-Main-Department-in-the-Kharkhiv-oblast-per-Chytomo-ftw.jpg

710-State-Emergency-Service-of-Ukraine-Main-Department-in-the-Kharkhiv-oblast-per-Chytomo-ftw.jpg

563 ms

ceebm_symbol_gold.png

ceebm_symbol_gold.png

664 ms

Banner-Theiner2024_370x240_na-homeage.png

Banner-Theiner2024_370x240_na-homeage.png

667 ms

Unknown.png

Unknown.png

668 ms

svet-knihy-praha-2022-_-navstevnici-ii.jpg

svet-knihy-praha-2022-_-navstevnici-ii.jpg

672 ms

Knizni_novinky.jpg

Knizni_novinky.jpg

680 ms

das-buch.png

das-buch.png

1045 ms

goethe-institut.png

goethe-institut.png

1287 ms

rakouske-kult-forum.png

rakouske-kult-forum.png

1172 ms

presence-switzerland.png

presence-switzerland.png

825 ms

pro-helvetia2.png

pro-helvetia2.png

951 ms

asv.png

asv.png

1075 ms

19_ceska-televize-vetsi.png

19_ceska-televize-vetsi.png

1068 ms

kafka5.png

kafka5.png

1079 ms

08_frankfurter-buchmesse5.jpg

08_frankfurter-buchmesse5.jpg

1171 ms

16_fond-budoucnosti.png

16_fond-budoucnosti.png

1196 ms

07_ppf-nadace.png

07_ppf-nadace.png

1204 ms

19_sckn.jpg

19_sckn.jpg

1212 ms

25_knizni_novinky.jpg

25_knizni_novinky.jpg

1428 ms

02_praha.gif

02_praha.gif

1327 ms

03_praha_7.gif

03_praha_7.gif

1335 ms

06_denik3.png

06_denik3.png

1343 ms

22_magnesia.png

22_magnesia.png

1351 ms

04_narodni_galerie_4x3.jpg

04_narodni_galerie_4x3.jpg

1412 ms

echo.jpg

echo.jpg

1729 ms

mkcr_websk.jpg

mkcr_websk.jpg

1709 ms

23_radio1.gif

23_radio1.gif

1486 ms

05_auroton_4x3.jpg

05_auroton_4x3.jpg

1610 ms

effe-label-black-2024-2025.jpg

effe-label-black-2024-2025.jpg

2246 ms

nkcr_uprava_web_partneri2.png

nkcr_uprava_web_partneri2.png

1904 ms

ui-logo,-horizontal-for-web,-white-background.png

ui-logo,-horizontal-for-web,-white-background.png

1615 ms

search.svg

search.svg

226 ms

chevron-down-white.svg

chevron-down-white.svg

406 ms

logo-svetknihy.svg

logo-svetknihy.svg

409 ms

image.svg

image.svg

407 ms

arr-line-right-white.svg

arr-line-right-white.svg

411 ms

arr-line-right-black.svg

arr-line-right-black.svg

413 ms

Register-Italic.ttf

Register-Italic.ttf

336 ms

Register-BoldItalic.ttf

Register-BoldItalic.ttf

543 ms

Register.ttf

Register.ttf

519 ms

Register-Bold.ttf

Register-Bold.ttf

531 ms

FoundersGrotesk-Regular.ttf

FoundersGrotesk-Regular.ttf

453 ms

FoundersGrotesk-Medium.ttf

FoundersGrotesk-Medium.ttf

416 ms

recaptcha__en.js

recaptcha__en.js

90 ms

cs-icon.svg

cs-icon.svg

165 ms

06-homepage-SK-2880x720.jpg

06-homepage-SK-2880x720.jpg

1929 ms

02-homepage-SK-2880x720.jpg

02-homepage-SK-2880x720.jpg

2581 ms

01-homepage-SK-2880x720.jpg

01-homepage-SK-2880x720.jpg

1775 ms

Podekovani_na-web_cerna.jpg

Podekovani_na-web_cerna.jpg

1838 ms

710-State-Emergency-Service-of-Ukraine-Main-Department-in-the-Kharkhiv-oblast-per-Chytomo-ftw.jpg

710-State-Emergency-Service-of-Ukraine-Main-Department-in-the-Kharkhiv-oblast-per-Chytomo-ftw.jpg

1816 ms

IMG_9370.JPG

IMG_9370.JPG

2683 ms

ceebm_symbol_gold.png

ceebm_symbol_gold.png

1827 ms

Banner-Theiner2024_370x240_na-homeage.png

Banner-Theiner2024_370x240_na-homeage.png

1971 ms

Unknown.png

Unknown.png

1869 ms

svet-knihy-praha-2022-_-navstevnici-ii.jpg

svet-knihy-praha-2022-_-navstevnici-ii.jpg

2669 ms

Knizni_novinky.jpg

Knizni_novinky.jpg

1978 ms

mlady-svet.png

mlady-svet.png

1955 ms

a11.png

a11.png

1811 ms

praha-7-slavi-140-lg-ver-bar-cmyk.pdf

praha-7-slavi-140-lg-ver-bar-cmyk.pdf

2625 ms

Accessibility Review

svetknihy.cz accessibility score

87

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

Best Practices

svetknihy.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

svetknihy.cz SEO score

91

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 Svetknihy.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 Svetknihy.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

svetknihy.cz

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