8.2 sec in total
2.2 sec
5.9 sec
150 ms
Welcome to i-study.cz homepage info - get ready to check I STUDY best content for Czech Republic right away, or after learning these important things about i-study.cz
Visit i-study.czWe analyzed I-study.cz page load time and found that the first response time was 2.2 sec and then it took 6.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
i-study.cz performance score
name
value
score
weighting
Value3.7 s
29/100
10%
Value3.8 s
55/100
25%
Value7.4 s
27/100
10%
Value80 ms
99/100
30%
Value0
100/100
15%
Value5.8 s
66/100
10%
2150 ms
165 ms
215 ms
148 ms
145 ms
Our browser made a total of 84 requests to load all elements on the main page. We found that 89% of them (75 requests) were addressed to the original I-study.cz, 10% (8 requests) were made to Fonts.googleapis.com and 1% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain I-study.cz.
Page size can be reduced by 2.2 MB (57%)
3.9 MB
1.7 MB
In fact, the total size of I-study.cz main page is 3.9 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 1.9 MB which makes up the majority of the site volume.
Potential reduce by 141.8 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 141.8 kB or 87% of the original size.
Potential reduce by 712.6 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, I STUDY needs image optimization as it can save up to 712.6 kB or 38% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 864.7 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 864.7 kB or 71% of the original size.
Potential reduce by 491.4 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. I-study.cz needs all CSS files to be minified and compressed as it can save up to 491.4 kB or 81% of the original size.
Number of requests can be reduced by 55 (71%)
77
22
The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of I STUDY. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.
2150 ms
wp-emoji-release.min.js
165 ms
dashicons.min.css
215 ms
jquery-ui-dialog.min.css
148 ms
layerslider.css
145 ms
css
23 ms
styles.css
170 ms
cli-style.css
231 ms
settings.css
226 ms
css
34 ms
css
42 ms
css
44 ms
settings.css
256 ms
style.css
436 ms
style.css
290 ms
style.css
291 ms
responsive.css
302 ms
icomoon.css
399 ms
animate.min.css
373 ms
jquery.js
497 ms
jquery-migrate.min.js
377 ms
greensock.js
519 ms
layerslider.kreaturamedia.jquery.js
530 ms
layerslider.transitions.js
472 ms
cookielawinfo.js
530 ms
lightbox.js
555 ms
jquery.themepunch.tools.min.js
637 ms
jquery.themepunch.essential.min.js
649 ms
jquery.themepunch.revolution.min.js
592 ms
google_analytics_auto.js
1269 ms
css
12 ms
css
13 ms
css
13 ms
css
14 ms
core.min.js
68 ms
widget.min.js
74 ms
mouse.min.js
117 ms
resizable.min.js
140 ms
draggable.min.js
142 ms
button.min.js
153 ms
position.min.js
159 ms
dialog.min.js
191 ms
wpdialog.min.js
213 ms
jquery.form.min.js
229 ms
scripts.js
234 ms
scripts.js
318 ms
jquery.scrollTo.js
270 ms
jquery.countdown.js
285 ms
jsapi
22 ms
map.js
301 ms
mediaelement.js
307 ms
jquery.flexslider.js
346 ms
jquery.validate.js
352 ms
jquery.easychart.js
370 ms
responsivecarousel.min.js
376 ms
jquery.owl.carousel.min.js
390 ms
jquery.custom.js
416 ms
public.min.js
433 ms
wp-embed.min.js
437 ms
cz.png
301 ms
gb.png
300 ms
preloader.gif
300 ms
I-STUDY_logo_6.jpg
471 ms
about-me-cover.jpg
312 ms
ny_street.jpg
391 ms
browser_window_alt.png
398 ms
iphone-hd.png
458 ms
preview-good.jpg
395 ms
slider-bg-1-good.jpg
510 ms
star.png
465 ms
I-STUDY_logo_3.jpg
909 ms
map.png
412 ms
overlay.png
484 ms
Icomoon.svg
953 ms
fontawesome-webfont.svg
732 ms
fontawesome-webfont.woff
482 ms
sourcesanspro-bold-webfont.woff
521 ms
hbicons.woff
548 ms
Museo500-Regular-webfont.woff
562 ms
revolution.extension.video.min.js
414 ms
revolution.extension.slideanims.min.js
430 ms
revolution.extension.layeranimation.min.js
446 ms
revolution.extension.navigation.min.js
480 ms
revicons.woff
107 ms
i-study.cz accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Links do not have a discernible name
i-study.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
General
Impact
Issue
Detected JavaScript libraries
i-study.cz SEO score
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise I-study.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that I-study.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.
i-study.cz
Open Graph description is not detected on the main page of I STUDY. 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: