1.6 sec in total
140 ms
1.3 sec
133 ms
Click here to check amazing Devel content for Czech Republic. Otherwise, check out these important facts you probably never knew about devel.cz
Visit devel.czWe analyzed Devel.cz page load time and found that the first response time was 140 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
devel.cz performance score
name
value
score
weighting
Value3.2 s
43/100
10%
Value3.2 s
72/100
25%
Value3.9 s
83/100
10%
Value20 ms
100/100
30%
Value0
100/100
15%
Value4.1 s
87/100
10%
140 ms
294 ms
80 ms
483 ms
39 ms
Our browser made a total of 19 requests to load all elements on the main page. We found that 84% of them (16 requests) were addressed to the original Devel.cz, 11% (2 requests) were made to Stats.g.doubleclick.net and 5% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (483 ms) belongs to the original domain Devel.cz.
Page size can be reduced by 14.0 kB (25%)
55.8 kB
41.7 kB
In fact, the total size of Devel.cz main page is 55.8 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. 20% of websites need less resources to load. Images take 20.5 kB which makes up the majority of the site volume.
Potential reduce by 8.5 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 8.5 kB or 69% of the original size.
Potential reduce by 2.2 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, Devel needs image optimization as it can save up to 2.2 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 27 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 3.4 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. Devel.cz needs all CSS files to be minified and compressed as it can save up to 3.4 kB or 58% of the original size.
Number of requests can be reduced by 8 (44%)
18
10
The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Devel. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
user
140 ms
css_6a8046434c7f5d7257b0316ec272cc2a.css
294 ms
css
80 ms
js_f904bc1543024c9da9af228ee14cd6eb.js
483 ms
dc.js
39 ms
top.png
99 ms
logo.png
98 ms
linkedin.png
162 ms
google.png
193 ms
twitter.png
194 ms
picture-823.jpg
194 ms
profile.jpg
194 ms
picture-11053.jpg
195 ms
picture-12354.jpg
258 ms
picture-13290.jpg
289 ms
footerIcons.png
293 ms
campaign.png
291 ms
close.png
295 ms
__utm.gif
12 ms
devel.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
devel.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
devel.cz SEO score
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Devel.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 Devel.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.
devel.cz
Open Graph description is not detected on the main page of Devel. 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: