Tools & Wizards About Us
zoopraha.cz screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

zoopraha.cz

Hlavní stránka

Page Load Speed

4.1 sec in total

First Response

402 ms

Resources Loaded

3.6 sec

Page Rendered

112 ms

zoopraha.cz screenshot

About Website

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

Welcome to the official English pages of Prague Zoo!

Visit zoopraha.cz

Key Findings

We analyzed Zoopraha.cz page load time and found that the first response time was 402 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

zoopraha.cz performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.4 s

2/100

10%

LCP (Largest Contentful Paint)

Value15.0 s

0/100

25%

SI (Speed Index)

Value11.8 s

4/100

10%

TBT (Total Blocking Time)

Value500 ms

58/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value13.8 s

10/100

10%

Network Requests Diagram

zoopraha.cz

402 ms

zoopraha.cz

384 ms

95 ms

en

187 ms

en

168 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 97% of them (69 requests) were addressed to the original Zoopraha.cz, 1% (1 request) were made to Google.com and 1% (1 request) were made to C.seznam.cz. The less responsive or slowest element that took the longest time to load (879 ms) belongs to the original domain Zoopraha.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 109.1 kB (18%)

Content Size

607.3 kB

After Optimization

498.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zoopraha.cz main page is 607.3 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. 35% of websites need less resources to load. Javascripts take 337.7 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 26.3 kB

  • Original 34.7 kB
  • After minification 33.5 kB
  • After compression 8.4 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 26.3 kB or 76% of the original size.

Image Optimization

-18%

Potential reduce by 39.6 kB

  • Original 223.2 kB
  • After minification 183.6 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. Obviously, Zoopraha needs image optimization as it can save up to 39.6 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-12%

Potential reduce by 41.8 kB

  • Original 337.7 kB
  • After minification 337.6 kB
  • After compression 295.8 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 41.8 kB or 12% of the original size.

CSS Optimization

-11%

Potential reduce by 1.4 kB

  • Original 11.8 kB
  • After minification 11.7 kB
  • After compression 10.4 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. Zoopraha.cz needs all CSS files to be minified and compressed as it can save up to 1.4 kB or 11% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (50%)

Requests Now

66

After Optimization

33

  • Images
  • JavaScript
  • CSS

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zoopraha. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zoopraha.cz

zoopraha.cz

402 ms

zoopraha.cz

zoopraha.cz

384 ms

95 ms

en

en

187 ms

en

en

168 ms

style.css

style.css

94 ms

elegant.css

elegant.css

207 ms

content.css

content.css

304 ms

en-GB.js

en-GB.js

393 ms

soundmanager2.js

soundmanager2.js

391 ms

responsivevoice.js

responsivevoice.js

492 ms

tts.js

tts.js

399 ms

controller.js

controller.js

399 ms

mootools-core.js

mootools-core.js

495 ms

core.js

core.js

484 ms

mootools-more.js

mootools-more.js

680 ms

recaptcha.min.js

recaptcha.min.js

493 ms

api.js

api.js

32 ms

engine.js

engine.js

493 ms

mootools-core.js

mootools-core.js

673 ms

engine.js

engine.js

584 ms

basic.css

basic.css

586 ms

colors.css

colors.css

585 ms

karusel.css

karusel.css

586 ms

home.css

home.css

677 ms

cookies-modal-min.css

cookies-modal-min.css

723 ms

jquery-1.9.1.js

jquery-1.9.1.js

879 ms

partneri.js

partneri.js

723 ms

partneri-run.js

partneri-run.js

765 ms

rc.js

rc.js

724 ms

cookies_2022.js

cookies_2022.js

770 ms

praguezoo-logo.png

praguezoo-logo.png

99 ms

e-ticket-btn.png

e-ticket-btn.png

98 ms

fb.png

fb.png

98 ms

yt.png

yt.png

99 ms

ig.png

ig.png

100 ms

search-input.jpg

search-input.jpg

96 ms

loader.gif

loader.gif

192 ms

is_pagination.png

is_pagination.png

190 ms

is_timeline.png

is_timeline.png

191 ms

8478f7a5aebf6202541c6952237ce875.jpg

8478f7a5aebf6202541c6952237ce875.jpg

193 ms

1dadc137d7c742018882eb6c9b6abd31.jpg

1dadc137d7c742018882eb6c9b6abd31.jpg

193 ms

content-image-3.jpg

content-image-3.jpg

284 ms

content-image-5.jpg

content-image-5.jpg

284 ms

pokladny-3x168-box.jpg

pokladny-3x168-box.jpg

284 ms

logo-kb.jpg

logo-kb.jpg

285 ms

VW_Logo_footer_re.png

VW_Logo_footer_re.png

286 ms

logo-cocacola_120x120px.jpg

logo-cocacola_120x120px.jpg

287 ms

Logo-mroz_2023.png

Logo-mroz_2023.png

377 ms

Kozel_2019_120x120_logo.jpg

Kozel_2019_120x120_logo.jpg

377 ms

black.png

black.png

377 ms

logo-mafra-black_white_120x120px.png

logo-mafra-black_white_120x120px.png

378 ms

logo-opk.gif

logo-opk.gif

378 ms

logo-eu.gif

logo-eu.gif

379 ms

praha-ico.gif

praha-ico.gif

470 ms

screen-reader-symbols_disabled-wheelchair-symbol.png

screen-reader-symbols_disabled-wheelchair-symbol.png

434 ms

screen-reader-symbols_play-off.png

screen-reader-symbols_play-off.png

433 ms

screen-reader-symbols_pause-off.png

screen-reader-symbols_pause-off.png

435 ms

screen-reader-symbols_stop-off.png

screen-reader-symbols_stop-off.png

436 ms

increase_elegant.png

increase_elegant.png

435 ms

decrease_elegant.png

decrease_elegant.png

525 ms

reset_elegant.png

reset_elegant.png

526 ms

dyslexic_elegant.png

dyslexic_elegant.png

526 ms

grayhues_elegant.png

grayhues_elegant.png

527 ms

bigcursor_elegant.png

bigcursor_elegant.png

527 ms

spacing_increase_elegant.png

spacing_increase_elegant.png

528 ms

spacing_decrease_elegant.png

spacing_decrease_elegant.png

618 ms

screen-reader-symbols_highcontrast.png

screen-reader-symbols_highcontrast.png

562 ms

waves.gif

waves.gif

563 ms

print.css

print.css

95 ms

banners-main.navrat_divokych_konikarHOME.jpg

banners-main.navrat_divokych_konikarHOME.jpg

187 ms

Accessibility Review

zoopraha.cz accessibility score

80

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

zoopraha.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

zoopraha.cz SEO score

92

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

zoopraha.cz

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