5.2 sec in total
357 ms
4.7 sec
181 ms
Welcome to ostrava.cz homepage info - get ready to check Ostrava best content for Czech Republic right away, or after learning these important things about ostrava.cz
Visit ostrava.czWe analyzed Ostrava.cz page load time and found that the first response time was 357 ms and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
ostrava.cz performance score
name
value
score
weighting
Value4.4 s
17/100
10%
Value4.9 s
29/100
25%
Value7.6 s
26/100
10%
Value220 ms
88/100
30%
Value0.149
76/100
15%
Value11.0 s
21/100
10%
357 ms
1090 ms
128 ms
262 ms
274 ms
Our browser made a total of 51 requests to load all elements on the main page. We found that 90% of them (46 requests) were addressed to the original Ostrava.cz, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Code.highcharts.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Ostrava.cz.
Page size can be reduced by 432.8 kB (65%)
670.9 kB
238.1 kB
In fact, the total size of Ostrava.cz main page is 670.9 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. 30% of websites need less resources to load. Javascripts take 524.0 kB which makes up the majority of the site volume.
Potential reduce by 36.3 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. This page needs HTML code to be minified as it can gain 10.2 kB, which is 23% 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 36.3 kB or 82% of the original size.
Potential reduce by 22.6 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, Ostrava needs image optimization as it can save up to 22.6 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 373.9 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 373.9 kB or 71% of the original size.
Number of requests can be reduced by 26 (55%)
47
21
The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ostrava. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.
ostrava.cz
357 ms
en
1090 ms
collective.js.jqueryui.custom.min-cachekey-4cb1f868b4f49d0c8be7a7928392bea3.css
128 ms
forms-cachekey-6bd1c6e1cc4476815ee7a3443a04a1e6.css
262 ms
resourceplone.app.discussion.stylesheetsdiscussion-cachekey-94cd4bc5b5144b5a9bdf1b026cb7abda.css
274 ms
resourceova.xdvthemecssfirst-cachekey-c652b157c2f81144183acc35378d67f8.css
290 ms
resourcetinymce.stylesheetstinymce-cachekey-69ba9edcefa7080dc3cb698f83f70574.css
297 ms
resourceplone.app.jquerytools.overlays-cachekey-b43a8f60566ca615cf21998e0094301e.css
311 ms
resourcetiny_filetypes-cachekey-2c2ba6009e3cd9f0474c2005f1532d59.css
314 ms
slimbox2-cachekey-0c325aeed4ca058903a4025ae552a671.css
385 ms
resourceplone.app.jquerytools.dateinput-cachekey-f4656053e15d8afc4bf66c03fd458f24.css
394 ms
site-custom.css
432 ms
carousel-cachekey-927a0f077545e4240bed6b786295ffcd.css
430 ms
resourcecollective.flowplayer.cssflowplayer-cachekey-b5944834e0f400a68cf2034a9e1f79e7.css
469 ms
maps-cachekey-1f1dfce4a6a185781ed8c4ed5350709b.css
479 ms
cookie_eu-cachekey-5e721f5ff5cf14aae7a787bbb83dbe6e.css
505 ms
resourceplone.app.jquery-cachekey-8676d3dbefbf88edb3686fcf8c048940.js
867 ms
inline_validation-cachekey-dd727cce0fa42eab57195dcadc0c8afa.js
572 ms
carousel-cachekey-56cbe74d85452b1a70717acd572df705.js
569 ms
slimbox2.js
628 ms
slimbox2-cachekey-d6d99f2465ab1b86b0c9b86ab81ce0c8.js
1108 ms
cufon.js
773 ms
Gotham_Bold_400.font.js
832 ms
jquery.dataTables.min.js
838 ms
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789 ms
resourcecollective.flowplayerflowplayer.playlist.min-cachekey-b4831fe209b578660e6de27b639dd948.js
913 ms
highcharts.js
39 ms
cookie_eu-cachekey-a7900353c037dd14d45b9839ab2f0a27.js
953 ms
Lucida-Grande.ttf
588 ms
portaly_en.png
545 ms
langs.gif
161 ms
logo_en.png
157 ms
searchbox.png
135 ms
plus-icons.png
149 ms
dot.png
133 ms
image_mini
275 ms
image_mini
290 ms
image_mini
295 ms
image_mini
315 ms
image_mini
329 ms
b_1_en
1548 ms
ostrava-logo-small.png
537 ms
analytics.js
48 ms
spinner.gif
506 ms
collect
12 ms
collect
60 ms
SOCIALNETWORK.png
179 ms
image_thumb
200 ms
smart
229 ms
infowebmut.png
314 ms
print.css
128 ms
ostrava.cz accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
ostrava.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
ostrava.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ostrava.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Ostrava.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.
ostrava.cz
Open Graph description is not detected on the main page of Ostrava. 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: