1.4 sec in total
179 ms
989 ms
228 ms
Visit yaklass.ru now to see the best up-to-date Yaklass content for Russia and also check out these interesting facts you probably never knew about yaklass.ru
Сайт ЯКласс — классный помощник в освоении школьной программы, твой советчик и друг в преодолении трудностей на пути к совершенству! Хочешь удивить родителей и учителей своими знаниями? Начни трениров...
Visit yaklass.ruWe analyzed Yaklass.ru page load time and found that the first response time was 179 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.
yaklass.ru performance score
name
value
score
weighting
Value2.9 s
54/100
10%
Value3.6 s
61/100
25%
Value3.8 s
84/100
10%
Value660 ms
45/100
30%
Value0.001
100/100
15%
Value8.4 s
39/100
10%
179 ms
301 ms
24 ms
6 ms
82 ms
Our browser made a total of 50 requests to load all elements on the main page. We found that 8% of them (4 requests) were addressed to the original Yaklass.ru, 26% (13 requests) were made to Yaklass-uploads-prod.s3.amazonaws.com and 24% (12 requests) were made to Yaklassru.azureedge.net. The less responsive or slowest element that took the longest time to load (440 ms) relates to the external source Yaklass-uploads-prod.s3.amazonaws.com.
Page size can be reduced by 146.6 kB (39%)
373.7 kB
227.1 kB
In fact, the total size of Yaklass.ru main page is 373.7 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. 40% of websites need less resources to load. Images take 158.2 kB which makes up the majority of the site volume.
Potential reduce by 45.0 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. This page needs HTML code to be minified as it can gain 14.1 kB, which is 25% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 45.0 kB or 80% of the original size.
Potential reduce by 1.7 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. Yaklass images are well optimized though.
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 99.8 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. Yaklass.ru needs all CSS files to be minified and compressed as it can save up to 99.8 kB or 83% of the original size.
Number of requests can be reduced by 17 (38%)
45
28
The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yaklass. 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 from 5 to 1 for CSS and as a result speed up the page load time.
yaklass.ru
179 ms
www.yaklass.ru
301 ms
css
24 ms
bootstrap.min.css
6 ms
layout
82 ms
startpage
109 ms
css
14 ms
jquery.min.js
11 ms
ru
148 ms
startpage
74 ms
dc.js
44 ms
logoJK_227x63.png
41 ms
icon-predmeti.png
191 ms
Scholar_W_small.png
143 ms
photosmall.jpg
212 ms
Ykplus_icon.png
196 ms
peremenka-bell.png
169 ms
box2.svg
247 ms
box3.svg
325 ms
box1.svg
190 ms
new-testwork-img_w300.png
324 ms
NN-img_w200.jpg
255 ms
karantin-end_w200.png
365 ms
hands_w200.png
351 ms
shnt-master-klass_w200.jpg
334 ms
xakasia_w200.png
440 ms
otkritie-innovacii2_w200.png
410 ms
Scholar_M_small.png
141 ms
zamok.png
109 ms
soc-sprites.png
110 ms
zvezda1.png
110 ms
zvezda2.png
111 ms
zvezda3.png
114 ms
zadanij_i_testov.png
111 ms
aktivnih_shkol.png
112 ms
zarabotano_ballov.png
113 ms
mobile_menu_logo_yaklass_32x32.svg
73 ms
_sakums.png
116 ms
_search_YK_2.png
75 ms
1_topi_zvezda.png
76 ms
shkoli-orange.png
77 ms
iconmenu-testwork.png
75 ms
iconmenu-newtutor.png
76 ms
predmeti_obnovl.png
105 ms
novosti.png
106 ms
__utm.gif
46 ms
ai.0.js
79 ms
hit
260 ms
RjgO7rYTmqiVp7vzi-Q5UT8E0i7KZn-EPnyo3HZu7kw.woff
7 ms
MTP_ySUJH_bn48VBG8sNSoraN7vELC11_xip9Rz-hMs.woff
13 ms
yaklass.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
[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
Image elements do not have [alt] attributes
Links do not have a discernible name
yaklass.ru 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
Browser errors were logged to the console
yaklass.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
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
Tap targets are not sized appropriately
RU
RU
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Yaklass.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 Yaklass.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.
yaklass.ru
Open Graph description is not detected on the main page of Yaklass. 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: