4 sec in total
344 ms
3.3 sec
267 ms
Click here to check amazing Holocaust content for United States. Otherwise, check out these important facts you probably never knew about holocaust.cz
Portál holocaust.cz představuje obsáhlý a unikátní zdroj informací k tématu holocaustu, rasismu a antisemitismu.
Visit holocaust.czWe analyzed Holocaust.cz page load time and found that the first response time was 344 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster. This domain responded with an error, which can significantly jeopardize Holocaust.cz rating and web reputation
holocaust.cz performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value4.5 s
36/100
25%
Value8.1 s
21/100
10%
Value180 ms
92/100
30%
Value0.003
100/100
15%
Value8.7 s
36/100
10%
344 ms
666 ms
230 ms
463 ms
764 ms
Our browser made a total of 64 requests to load all elements on the main page. We found that 9% of them (6 requests) were addressed to the original Holocaust.cz, 80% (51 requests) were made to C.holocaust.cz and 3% (2 requests) were made to S7.addthis.com. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source C.holocaust.cz.
Page size can be reduced by 653.0 kB (47%)
1.4 MB
737.3 kB
In fact, the total size of Holocaust.cz main page is 1.4 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. 55% of websites need less resources to load. Images take 541.3 kB which makes up the majority of the site volume.
Potential reduce by 320.4 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 320.4 kB or 81% of the original size.
Potential reduce by 51.5 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. Holocaust images are well optimized though.
Potential reduce by 281.1 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 281.1 kB or 62% of the original size.
Number of requests can be reduced by 16 (26%)
61
45
The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Holocaust. 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.
holocaust.cz
344 ms
www.holocaust.cz
666 ms
1374845537.css
230 ms
1457699522.css
463 ms
764 ms
addthis_widget.js
10 ms
analytics.js
48 ms
logo_holocaustcz.png
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piwik.js
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piwik.php
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holocaust.cz accessibility score
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
<input type="image"> elements do not have [alt] text
Links do not have a discernible name
holocaust.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
holocaust.cz SEO score
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
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Holocaust.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 Holocaust.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.
holocaust.cz
Open Graph description is not detected on the main page of Holocaust. 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: