4.1 sec in total
695 ms
3.1 sec
231 ms
Welcome to classs.ru homepage info - get ready to check Classs best content for Russia right away, or after learning these important things about classs.ru
Учебный центр «Бизнес Класс» проводит огромное количество курсов, семинаров и бизнес тренингов продаж. Кроме указанных тренингов школа бизнеса занимается корпоративным обучением персонала и руководите...
Visit classs.ruWe analyzed Classs.ru page load time and found that the first response time was 695 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
classs.ru performance score
name
value
score
weighting
Value1.7 s
92/100
10%
Value1.7 s
99/100
25%
Value3.5 s
88/100
10%
Value140 ms
96/100
30%
Value0.009
100/100
15%
Value5.3 s
73/100
10%
695 ms
514 ms
667 ms
823 ms
824 ms
Our browser made a total of 60 requests to load all elements on the main page. We found that 88% of them (53 requests) were addressed to the original Classs.ru, 3% (2 requests) were made to Counter.yadro.ru and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (826 ms) belongs to the original domain Classs.ru.
Page size can be reduced by 66.8 kB (43%)
155.9 kB
89.1 kB
In fact, the total size of Classs.ru main page is 155.9 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. 15% of websites need less resources to load. Images take 62.4 kB which makes up the majority of the site volume.
Potential reduce by 20.0 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 20.0 kB or 73% of the original size.
Potential reduce by 8.3 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, Classs needs image optimization as it can save up to 8.3 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 14.1 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 14.1 kB or 38% of the original size.
Potential reduce by 24.5 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. Classs.ru needs all CSS files to be minified and compressed as it can save up to 24.5 kB or 83% of the original size.
Number of requests can be reduced by 37 (65%)
57
20
The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Classs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
classs.ru
695 ms
main.css
514 ms
main.js
667 ms
wg.js
823 ms
rotate_top.js
824 ms
swfobject.js
826 ms
watch.js
1 ms
h6.jpg
473 ms
header-bg.gif
155 ms
header-left.jpg
160 ms
header-logo.gif
156 ms
header-slogan.gif
157 ms
wrapper-bg.gif
305 ms
h1top.jpg
309 ms
h1bot.jpg
493 ms
linkbutton.gif
319 ms
menu-top-f.gif
321 ms
menu-bottom-f.gif
310 ms
menu-li.gif
457 ms
menu-top-s.gif
491 ms
menu-bottom-s.gif
494 ms
subscribe-top.gif
494 ms
subscribe-bottom.gif
499 ms
add2fav.gif
608 ms
smallnav-home.gif
647 ms
smallnav-mail.gif
646 ms
smallnav-print.gif
650 ms
smallnav-search.gif
648 ms
contacts-top.gif
651 ms
contacts-bottom.gif
760 ms
info-rules.gif
803 ms
newbook.gif
307 ms
syntone-bk.gif
307 ms
contacts-phone.gif
310 ms
contacts-mail.gif
313 ms
contacts-contacts.gif
486 ms
subscribe-head.gif
487 ms
subscribe-btn.gif
489 ms
clubs.gif
489 ms
info-trainings.gif
604 ms
info-top.gif
770 ms
info-bottom.gif
771 ms
footer-bg.gif
775 ms
contacts-top.gif
617 ms
contacts-bottom.gif
618 ms
hit
263 ms
ga.js
14 ms
__utm.gif
13 ms
yandex_search.png
597 ms
hit
143 ms
404.html
492 ms
print.css
154 ms
ie.css
155 ms
404.html
310 ms
404.html
313 ms
counter2
158 ms
404.html
311 ms
404.html
307 ms
404.html
304 ms
404.html
307 ms
classs.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.
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
classs.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
Detected JavaScript libraries
Browser errors were logged to the console
classs.ru SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
Document uses plugins
RU
RU
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Classs.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it matches the claimed language. Our system also found out that Classs.ru 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.
classs.ru
Open Graph description is not detected on the main page of Classs. 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: