14 sec in total
1.2 sec
12.6 sec
192 ms
Click here to check amazing Kursy content for Russia. Otherwise, check out these important facts you probably never knew about kursy.ru
Список лучших онлайн-курсов за 2023 год. Выбери подходящую программу обучения из нашего рейтинга. Только актуальные условия и отзывы учеников.
Visit kursy.ruWe analyzed Kursy.ru page load time and found that the first response time was 1.2 sec and then it took 12.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
kursy.ru performance score
name
value
score
weighting
Value1.4 s
97/100
10%
Value1.4 s
100/100
25%
Value2.1 s
99/100
10%
Value10 ms
100/100
30%
Value0
100/100
15%
Value2.0 s
99/100
10%
1187 ms
246 ms
36 ms
385 ms
247 ms
Our browser made a total of 35 requests to load all elements on the main page. We found that 46% of them (16 requests) were addressed to the original Kursy.ru, 9% (3 requests) were made to Ssp.adriver.ru and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (11.3 sec) belongs to the original domain Kursy.ru.
Page size can be reduced by 29.8 kB (41%)
72.8 kB
43.0 kB
In fact, the total size of Kursy.ru main page is 72.8 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. Only 10% of websites need less resources to load. Javascripts take 29.0 kB which makes up the majority of the site volume.
Potential reduce by 18.3 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. 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 18.3 kB or 76% of the original size.
Potential reduce by 2.3 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, Kursy needs image optimization as it can save up to 2.3 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 9.2 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 9.2 kB or 32% of the original size.
Number of requests can be reduced by 18 (62%)
29
11
The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kursy. 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.
kursy.ru
1187 ms
blue.css
246 ms
ga.js
36 ms
top100.cnt
385 ms
banner-88x31-rambler-blue.gif
247 ms
pbg.gif
132 ms
fignya3.jpg
252 ms
logo.gif
257 ms
0.gif
261 ms
comp_t.gif
1155 ms
lang_t.gif
10196 ms
new_t.gif
11306 ms
write_t.gif
375 ms
buss_t.gif
380 ms
zdrav_t.gif
391 ms
mist_t.gif
498 ms
study_t.gif
504 ms
home_t.gif
521 ms
other_t.gif
624 ms
cnt
371 ms
__utm.gif
12 ms
u666.64.spylog.com
379 ms
erle.cgi
283 ms
0.gif
409 ms
1.html
403 ms
cnt
247 ms
counter2
136 ms
hotlog_redirects
299 ms
1.js
405 ms
pixel
20 ms
ApEWFSJeILR6ejOGBKJlRrw
531 ms
pixel
16 ms
sync.cgi
399 ms
sync.cgi
344 ms
sync.cgi
188 ms
kursy.ru 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.
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
Links do not have a discernible name
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
kursy.ru best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Browser errors were logged to the console
kursy.ru 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
RU
N/A
WINDOWS-1251
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kursy.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Kursy.ru main page’s claimed encoding is windows-1251. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
kursy.ru
Open Graph description is not detected on the main page of Kursy. 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: