4.3 sec in total
1.3 sec
2.7 sec
290 ms
Welcome to knihovna-cl.cz homepage info - get ready to check Knihovna Cl best content for Czech Republic right away, or after learning these important things about knihovna-cl.cz
none, Městská knihovna Česká Lípa
Visit knihovna-cl.czWe analyzed Knihovna-cl.cz page load time and found that the first response time was 1.3 sec and then it took 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.
knihovna-cl.cz performance score
name
value
score
weighting
Value3.6 s
31/100
10%
Value4.7 s
33/100
25%
Value5.1 s
61/100
10%
Value70 ms
99/100
30%
Value0.054
98/100
15%
Value3.7 s
90/100
10%
1267 ms
208 ms
321 ms
463 ms
213 ms
Our browser made a total of 63 requests to load all elements on the main page. We found that 90% of them (57 requests) were addressed to the original Knihovna-cl.cz, 3% (2 requests) were made to Google-analytics.com and 3% (2 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Knihovna-cl.cz.
Page size can be reduced by 476.2 kB (40%)
1.2 MB
727.5 kB
In fact, the total size of Knihovna-cl.cz main page is 1.2 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 689.7 kB which makes up the majority of the site volume.
Potential reduce by 60.1 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. 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 60.1 kB or 79% of the original size.
Potential reduce by 113.4 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, Knihovna Cl needs image optimization as it can save up to 113.4 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 258.0 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 258.0 kB or 67% of the original size.
Potential reduce by 44.7 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. Knihovna-cl.cz needs all CSS files to be minified and compressed as it can save up to 44.7 kB or 81% of the original size.
Number of requests can be reduced by 30 (48%)
62
32
The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Knihovna Cl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
knihovna-cl.cz
1267 ms
jquery-ui-1.10.3.custom.min.css
208 ms
jquery-1.10.1.min.js
321 ms
jquery-ui-1.10.3.custom.min.js
463 ms
jquery.mousewheel.min.js
213 ms
jquery.tagsphere.min.js
214 ms
jfastmenu.js
215 ms
vtip.js
310 ms
distrib.min.js
338 ms
easybox.min.js
337 ms
handlers.min.js
337 ms
easybox.min.css
414 ms
css.css
419 ms
default.css
424 ms
forall.js
424 ms
all.js
14 ms
logo.jpg
211 ms
rozbalit.png
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cze.png
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sbalit.png
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eng.png
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sada_login.png
209 ms
sada_facebook.png
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sada_rss.png
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sada_sitemap.png
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sada_contact.png
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sada_print.png
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sada_phone.png
308 ms
bg-content.jpg
421 ms
default.jpg
635 ms
bg-content-top.jpg
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Velikonoce.jpg
427 ms
DSC07538%20%E2%80%93%20kopie.jpg
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BM%C4%8C%202016.jpg
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image004.jpg
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Scan10029.jpg
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kindle3-kindle-3.jpg
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90.png
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bg-content-bottom.jpg
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bg-right-box.jpg
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bg-specmenu.jpg
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64.gif
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info.png
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ga.js
18 ms
__utm.gif
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xd_arbiter.php
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browser-firefox-gray.png
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knihovna-cl.cz accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
<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
Form elements do not have associated labels
Links do not have a discernible name
knihovna-cl.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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
knihovna-cl.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Knihovna-cl.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 Knihovna-cl.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.
knihovna-cl.cz
Open Graph description is not detected on the main page of Knihovna Cl. 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: