Tools & Wizards About Us
bourky.cz screenshot

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

bourky.cz

Amatérská meteorologická společnost | Projekt zapsaného spolku Amatérská meteorologická společnost

Page Load Speed

3.6 sec in total

First Response

345 ms

Resources Loaded

3.1 sec

Page Rendered

200 ms

bourky.cz screenshot

About Website

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

Stránky o počasí: bouřky, blesky, oblaky a podobné jevy

Visit bourky.cz

Key Findings

We analyzed Bourky.cz page load time and found that the first response time was 345 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

bourky.cz performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value13.8 s

0/100

25%

SI (Speed Index)

Value16.5 s

0/100

10%

TBT (Total Blocking Time)

Value1,690 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.313

37/100

15%

TTI (Time to Interactive)

Value24.8 s

0/100

10%

Network Requests Diagram

bourky.cz

345 ms

www.bourky.cz

777 ms

js.php

352 ms

jquery.cycle.lite.js

205 ms

highslide.js

309 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 70% of them (43 requests) were addressed to the original Bourky.cz, 5% (3 requests) were made to Galerie.bourky.cz and 5% (3 requests) were made to Galerie.bourky.com. The less responsive or slowest element that took the longest time to load (942 ms) relates to the external source Webarchiv.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 268.4 kB (33%)

Content Size

809.5 kB

After Optimization

541.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bourky.cz main page is 809.5 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. 40% of websites need less resources to load. Images take 506.3 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 33.9 kB

  • Original 45.1 kB
  • After minification 43.6 kB
  • After compression 11.3 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 33.9 kB or 75% of the original size.

Image Optimization

-12%

Potential reduce by 62.6 kB

  • Original 506.3 kB
  • After minification 443.7 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, Bourky needs image optimization as it can save up to 62.6 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-60%

Potential reduce by 115.0 kB

  • Original 191.7 kB
  • After minification 176.1 kB
  • After compression 76.7 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 115.0 kB or 60% of the original size.

CSS Optimization

-86%

Potential reduce by 57.0 kB

  • Original 66.4 kB
  • After minification 48.7 kB
  • After compression 9.4 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. Bourky.cz needs all CSS files to be minified and compressed as it can save up to 57.0 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (24%)

Requests Now

55

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bourky. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

bourky.cz

bourky.cz

345 ms

www.bourky.cz

www.bourky.cz

777 ms

js.php

js.php

352 ms

jquery.cycle.lite.js

jquery.cycle.lite.js

205 ms

highslide.js

highslide.js

309 ms

styles.php

styles.php

223 ms

highslide.css

highslide.css

219 ms

highslide-ie6.css

highslide-ie6.css

218 ms

all.js

all.js

22 ms

body.png

body.png

125 ms

frame.png

frame.png

125 ms

left.png

left.png

123 ms

logo_ASS.png

logo_ASS.png

218 ms

count.asp

count.asp

401 ms

facebook_small.png

facebook_small.png

118 ms

94 ms

webarchiv_certifikat_c.gif

webarchiv_certifikat_c.gif

942 ms

maly_IMG_2099x.jpg

maly_IMG_2099x.jpg

698 ms

0sTQzbapM8j.js

0sTQzbapM8j.js

33 ms

0sTQzbapM8j.js

0sTQzbapM8j.js

86 ms

maly_IMG_2101Ax.jpg

maly_IMG_2101Ax.jpg

689 ms

maly_IMG_2172x.jpg

maly_IMG_2172x.jpg

690 ms

background.jpg

background.jpg

122 ms

13.jpg

13.jpg

351 ms

07.jpg

07.jpg

362 ms

06.jpg

06.jpg

289 ms

02.jpg

02.jpg

400 ms

03.jpg

03.jpg

446 ms

main.png

main.png

271 ms

chmi.png

chmi.png

380 ms

skywarn.png

skywarn.png

408 ms

skywarn_sigwt.png

skywarn_sigwt.png

456 ms

estofex.png

estofex.png

462 ms

meteoalarm.png

meteoalarm.png

499 ms

pacz2web.gif

pacz2web.gif

726 ms

pozorovatele.php

pozorovatele.php

533 ms

skywarn.png

skywarn.png

555 ms

chmu.gif

chmu.gif

557 ms

setvak.jpg

setvak.jpg

562 ms

pnovak.jpg

pnovak.jpg

607 ms

mprovod.jpg

mprovod.jpg

645 ms

uma.gif

uma.gif

662 ms

stormchasers_de.png

stormchasers_de.png

657 ms

logo_HUCR.png

logo_HUCR.png

654 ms

ga.js

ga.js

7 ms

__utm.gif

__utm.gif

11 ms

overlay.png

overlay.png

658 ms

controls.png

controls.png

699 ms

border.png

border.png

700 ms

loading_background.png

loading_background.png

711 ms

loading.gif

loading.gif

706 ms

like.php

like.php

30 ms

BhH0EOHWA4U.js

BhH0EOHWA4U.js

20 ms

lH1ibRl5GKq.png

lH1ibRl5GKq.png

13 ms

maly_IMG_2099x.jpg

maly_IMG_2099x.jpg

698 ms

maly_IMG_2101Ax.jpg

maly_IMG_2101Ax.jpg

698 ms

maly_IMG_2172x.jpg

maly_IMG_2172x.jpg

699 ms

80x15.png

80x15.png

25 ms

rounded-white.png

rounded-white.png

113 ms

zoomout.cur

zoomout.cur

111 ms

loader.white.gif

loader.white.gif

103 ms

Accessibility Review

bourky.cz accessibility score

85

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

bourky.cz best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

bourky.cz SEO score

76

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 Bourky.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 Bourky.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

bourky.cz

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