Tools & Wizards About Us
zs-travniky.cz screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

zs-travniky.cz

Základní škola

Page Load Speed

14.2 sec in total

First Response

412 ms

Resources Loaded

12.7 sec

Page Rendered

1.1 sec

zs-travniky.cz screenshot

About Website

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

Základní škola - Vsetín Trávníky

Visit zs-travniky.cz

Key Findings

We analyzed Zs-travniky.cz page load time and found that the first response time was 412 ms and then it took 13.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

zs-travniky.cz performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.8 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.0 s

0/100

25%

SI (Speed Index)

Value11.2 s

5/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.238

52/100

15%

TTI (Time to Interactive)

Value16.7 s

5/100

10%

Network Requests Diagram

zs-travniky.cz

412 ms

www.zs-travniky.cz

992 ms

jquery-1.7.2.min.js

713 ms

lightbox.js

314 ms

lightbox.css

313 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 95% of them (107 requests) were addressed to the original Zs-travniky.cz, 2% (2 requests) were made to Ssl.google-analytics.com and 1% (1 request) were made to Maps.google.com. The less responsive or slowest element that took the longest time to load (8.9 sec) belongs to the original domain Zs-travniky.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 835.2 kB (9%)

Content Size

9.5 MB

After Optimization

8.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zs-travniky.cz main page is 9.5 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. 50% of websites need less resources to load. Images take 8.7 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 86.5 kB

  • Original 106.9 kB
  • After minification 106.5 kB
  • After compression 20.4 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 86.5 kB or 81% of the original size.

Image Optimization

-3%

Potential reduce by 242.9 kB

  • Original 8.7 MB
  • After minification 8.5 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. Zs Travniky images are well optimized though.

JavaScript Optimization

-77%

Potential reduce by 445.7 kB

  • Original 577.6 kB
  • After minification 396.2 kB
  • After compression 131.9 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 445.7 kB or 77% of the original size.

CSS Optimization

-87%

Potential reduce by 60.2 kB

  • Original 69.0 kB
  • After minification 40.7 kB
  • After compression 8.8 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. Zs-travniky.cz needs all CSS files to be minified and compressed as it can save up to 60.2 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (25%)

Requests Now

105

After Optimization

79

  • Images
  • JavaScript
  • CSS

The browser has sent 105 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zs Travniky. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zs-travniky.cz

zs-travniky.cz

412 ms

www.zs-travniky.cz

www.zs-travniky.cz

992 ms

jquery-1.7.2.min.js

jquery-1.7.2.min.js

713 ms

lightbox.js

lightbox.js

314 ms

lightbox.css

lightbox.css

313 ms

ajax.js

ajax.js

313 ms

funkce_new.js

funkce_new.js

416 ms

style_new.css

style_new.css

510 ms

maps

maps

30 ms

jquery-1.11.1.js

jquery-1.11.1.js

1122 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

418 ms

jquery.cycle.all.min.js

jquery.cycle.all.min.js

518 ms

jquery.fancybox-1.3.1.pack.js

jquery.fancybox-1.3.1.pack.js

517 ms

jquery.fancybox-1.3.1.css

jquery.fancybox-1.3.1.css

519 ms

owl.carousel.css

owl.carousel.css

610 ms

owl.theme.css

owl.theme.css

618 ms

prettify.css

prettify.css

619 ms

owl.carousel.js

owl.carousel.js

820 ms

bootstrap-collapse.js

bootstrap-collapse.js

725 ms

bootstrap-transition.js

bootstrap-transition.js

725 ms

bootstrap-tab.js

bootstrap-tab.js

724 ms

prettify.js

prettify.js

811 ms

application.js

application.js

813 ms

oceneni.gif

oceneni.gif

636 ms

bcg_facebook.png

bcg_facebook.png

109 ms

bcg_youtube.png

bcg_youtube.png

108 ms

dt.gif

dt.gif

107 ms

bcg_vyhledavani.png

bcg_vyhledavani.png

107 ms

bcg_tel.png

bcg_tel.png

107 ms

bcg_email.png

bcg_email.png

106 ms

bcg_top2.png

bcg_top2.png

206 ms

bcg_logo.png

bcg_logo.png

352 ms

bcg_menu0.png

bcg_menu0.png

209 ms

bcg_menu.png

bcg_menu.png

208 ms

bcg_carky.png

bcg_carky.png

205 ms

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1680513989_vyroci70.jpg

511 ms

bcg_sipka1.png

bcg_sipka1.png

306 ms

bcg_sipka2.png

bcg_sipka2.png

307 ms

bcg_menu_281.png

bcg_menu_281.png

308 ms

bcg_ico_281.png

bcg_ico_281.png

313 ms

bcg_menu_282.png

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406 ms

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408 ms

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408 ms

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414 ms

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bcg_menu_284.png

452 ms

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bcg_ico_284.png

507 ms

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bcg_menu_285.png

508 ms

bcg_ico_285.png

bcg_ico_285.png

509 ms

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bcg_ico_bila_281.png

515 ms

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552 ms

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bcg_ico_bila_283.png

607 ms

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bcg_ico_bila_284.png

609 ms

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bcg_ico_bila_285.png

609 ms

bcg_zelena.png

bcg_zelena.png

610 ms

img_6770_1593429453.jpg

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1017 ms

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954 ms

1719570407_1vysvedceni24.jpg

1719570407_1vysvedceni24.jpg

1308 ms

bcg_jidelnicek1.png

bcg_jidelnicek1.png

710 ms

bcg_jidelnicek2.png

bcg_jidelnicek2.png

711 ms

ga.js

ga.js

29 ms

L.js

L.js

620 ms

bcg_jidelnicek3.png

bcg_jidelnicek3.png

614 ms

dosis-regular-webfont.woff

dosis-regular-webfont.woff

812 ms

dosis-light-webfont.woff

dosis-light-webfont.woff

714 ms

dosis-bold-webfont.woff

dosis-bold-webfont.woff

817 ms

dosis-extralight-webfont.woff

dosis-extralight-webfont.woff

817 ms

bcg_anketa.png

bcg_anketa.png

914 ms

orig_nntblogo_1602841576.png

orig_nntblogo_1602841576.png

1118 ms

__utm.gif

__utm.gif

12 ms

1662973966_360degree1.png

1662973966_360degree1.png

920 ms

orig_logo_sp_dlouhe_1604314042.png

orig_logo_sp_dlouhe_1604314042.png

855 ms

bcg_skola_v_cislech.png

bcg_skola_v_cislech.png

914 ms

img5045_1567521900.jpg

img5045_1567521900.jpg

1215 ms

bcg_pruh1.png

bcg_pruh1.png

856 ms

bcg_pruh2.png

bcg_pruh2.png

916 ms

bcg_pruh3.png

bcg_pruh3.png

920 ms

bcg_skola_1567600375.jpg

bcg_skola_1567600375.jpg

1051 ms

tjmez1_1573910481.jpg

tjmez1_1573910481.jpg

1074 ms

ovoceazelenina.png

ovoceazelenina.png

918 ms

Recyklohran%C3%AD.png

Recyklohran%C3%AD.png

922 ms

DUMY-logo.jpg

DUMY-logo.jpg

1109 ms

external1819_1.png

external1819_1.png

1114 ms

logo4_resize.png

logo4_resize.png

979 ms

rodicevitani.jpg

rodicevitani.jpg

958 ms

logo7_resize.png

logo7_resize.png

1015 ms

edulab2.jpg

edulab2.jpg

1022 ms

Skolniprojekt_2.jpg

Skolniprojekt_2.jpg

1123 ms

sgsokol_1573910535.png

sgsokol_1573910535.png

1152 ms

bcg_paticka1.png

bcg_paticka1.png

1066 ms

bcg_paticka2.png

bcg_paticka2.png

1018 ms

bcg_paticka3.png

bcg_paticka3.png

1019 ms

bcg_paticka4.png

bcg_paticka4.png

1021 ms

scroll1.png

scroll1.png

1108 ms

oceneni.gif

oceneni.gif

501 ms

loading.gif

loading.gif

1014 ms

close.png

close.png

1016 ms

bcg_puntik2.png

bcg_puntik2.png

1019 ms

bcg_puntik1.png

bcg_puntik1.png

915 ms

orig_img_1931_1569330499.jpg

orig_img_1931_1569330499.jpg

5299 ms

orig_img_3511_1569528346.jpg

orig_img_3511_1569528346.jpg

7467 ms

orig_spolecne-foto-2_1569528578.jpg

orig_spolecne-foto-2_1569528578.jpg

8591 ms

orig_img5045_1569528534.jpg

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1282 ms

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8117 ms

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1431 ms

orig_viden191_1569528642.jpg

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3667 ms

orig_tarzanie19_1569528602.jpg

orig_tarzanie19_1569528602.jpg

1844 ms

orig_akademie19_1569528128.jpg

orig_akademie19_1569528128.jpg

2146 ms

orig_img_3186_1569528316.jpg

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8903 ms

orig_vanocnikoncert2_1569528620.jpg

orig_vanocnikoncert2_1569528620.jpg

3812 ms

orig_img_0144_1569528282.jpg

orig_img_0144_1569528282.jpg

8180 ms

orig_karneval19_1569528554.jpg

orig_karneval19_1569528554.jpg

5299 ms

orig_florbalovaliga1819_1569528256.jpg

orig_florbalovaliga1819_1569528256.jpg

7639 ms

print.css

print.css

103 ms

Accessibility Review

zs-travniky.cz accessibility score

71

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

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

zs-travniky.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

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

zs-travniky.cz SEO score

92

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

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 Zs-travniky.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 Zs-travniky.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

zs-travniky.cz

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