3.6 sec in total
220 ms
3.2 sec
207 ms
Welcome to vpr-klass.com homepage info - get ready to check Vpr Klass best content for Russia right away, or after learning these important things about vpr-klass.com
vpr-klass.com поможет в подготовке к экзаменам ГИА и ЕГЭ 2018. На сайте есть много решебников и ГДЗ по математике, онлайн тесты, презентации, примеры решения заданий и задач.
Visit vpr-klass.comWe analyzed Vpr-klass.com page load time and found that the first response time was 220 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 60% of websites can load faster.
vpr-klass.com performance score
name
value
score
weighting
Value1.3 s
98/100
10%
Value3.0 s
77/100
25%
Value2.2 s
99/100
10%
Value500 ms
58/100
30%
Value0.005
100/100
15%
Value6.3 s
61/100
10%
220 ms
341 ms
23 ms
19 ms
33 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 79% of them (27 requests) were addressed to the original Vpr-klass.com, 6% (2 requests) were made to Yastatic.net and 6% (2 requests) were made to Mc.yandex.ru. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Counter.yadro.ru.
Page size can be reduced by 115.0 kB (37%)
311.0 kB
196.0 kB
In fact, the total size of Vpr-klass.com main page is 311.0 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 149.4 kB which makes up the majority of the site volume.
Potential reduce by 113.1 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 113.1 kB or 83% of the original size.
Potential reduce by 542 B
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. Vpr Klass images are well optimized though.
Potential reduce by 171 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 1.3 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. Vpr-klass.com has all CSS files already compressed.
Number of requests can be reduced by 8 (25%)
32
24
The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vpr Klass. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.
vpr-klass.com
220 ms
jquery.js
341 ms
jqueryui.js
23 ms
dle_js.js
19 ms
libs.js
33 ms
engine.css
256 ms
styles.css
291 ms
es5-shims.min.js
510 ms
share.js
731 ms
scrolltopcontrol.js
28 ms
statistika.js
32 ms
qr-code.gif
37 ms
vpr-klass.jpg
51 ms
ebbtmbindex1.gif
43 ms
ebbtmbindex2.gif
45 ms
ebbtmbindex3.gif
56 ms
ebbtmbindex4.gif
97 ms
mb_1_4_.gif
60 ms
mb_5_6_.gif
65 ms
mb_7_9_.gif
74 ms
mb_10_11_.gif
78 ms
ebbtmbindex9.gif
85 ms
ebbtmbindex10.gif
87 ms
ebbtmbindex11.gif
97 ms
ebbtmbindex12.gif
96 ms
ebbtmbindex13.gif
110 ms
main.css
183 ms
list_v_kletku2.png
196 ms
watch.js
24 ms
hit
1502 ms
Ver.png
199 ms
tag.js
869 ms
advert.gif
688 ms
sync_cookie_image_decide
157 ms
vpr-klass.com 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
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
vpr-klass.com 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
Page has valid source maps
vpr-klass.com 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
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vpr-klass.com 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 Vpr-klass.com 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.
vpr-klass.com
Open Graph description is not detected on the main page of Vpr Klass. 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: