7.9 sec in total
901 ms
4.7 sec
2.3 sec
Welcome to lukas-zeman.cz homepage info - get ready to check Lukas Zeman best content right away, or after learning these important things about lukas-zeman.cz
Fotograf Lukas Zeman Photo se specializuje na fotografii divoké přírody (wildflife, nature), leteckou fotografii a fotografii architektury a interiérů. Pořádá fotografické kurzy a vlastní fotoateliér ...
Visit lukas-zeman.czWe analyzed Lukas-zeman.cz page load time and found that the first response time was 901 ms and then it took 7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
lukas-zeman.cz performance score
name
value
score
weighting
Value2.4 s
72/100
10%
Value12.0 s
0/100
25%
Value10.4 s
8/100
10%
Value2,890 ms
3/100
30%
Value0.002
100/100
15%
Value17.0 s
5/100
10%
901 ms
366 ms
360 ms
245 ms
243 ms
Our browser made a total of 101 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Lukas-zeman.cz, 2% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source E-smile.cz.
Page size can be reduced by 647.3 kB (16%)
4.0 MB
3.4 MB
In fact, the total size of Lukas-zeman.cz main page is 4.0 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. 65% of websites need less resources to load. Images take 3.5 MB which makes up the majority of the site volume.
Potential reduce by 45.3 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 10.3 kB, which is 18% 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 45.3 kB or 80% of the original size.
Potential reduce by 237.9 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. Lukas Zeman images are well optimized though.
Potential reduce by 198.7 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 198.7 kB or 70% of the original size.
Potential reduce by 165.5 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. Lukas-zeman.cz needs all CSS files to be minified and compressed as it can save up to 165.5 kB or 86% of the original size.
Number of requests can be reduced by 33 (33%)
100
67
The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lukas Zeman. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
www.e-smile.cz
901 ms
bootstrap.css
366 ms
bootstrap-responsive.css
360 ms
extension.css
245 ms
typography.css
243 ms
prettyPhoto.css
245 ms
isotope.css
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style.css
362 ms
css
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jquery-1.7.2.min.js
612 ms
bootstrap-transition.js
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bootstrap-alert.js
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bootstrap-modal.js
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bootstrap-dropdown.js
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bootstrap-scrollspy.js
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bootstrap-tab.js
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bootstrap-tooltip.js
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bootstrap-popover.js
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bootstrap-button.js
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bootstrap-collapse.js
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bootstrap-carousel.js
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bootstrap-typeahead.js
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bootstrap-affix.js
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jquery.inview.js
639 ms
jquery.localscroll-1.2.7-min.js
641 ms
jquery.scrollTo-1.4.2-min.js
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nbw-parallax.js
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jquery.prettyPhoto.js
722 ms
jquery.easing.1.3.js
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jquery.isotope.min.js
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fake-element.js
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form-validation.js
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jquery.backstretch.min.js
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scroll.js
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main.js
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analytics.js
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lukas-zeman.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
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.
lukas-zeman.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
lukas-zeman.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lukas-zeman.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 Lukas-zeman.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.
lukas-zeman.cz
Open Graph description is not detected on the main page of Lukas Zeman. 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: