Access onlineclassroom.ru. Информационно-образовательный портал onlineclassroom.ru

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About Website

Click here to check amazing Onlineclassroom content. Otherwise, check out these important facts you probably never knew about onlineclassroom.ru

Наши online-школы иностранных языков сочетают лучшие российские и зарубежные методики преподавания иностранных языков с новейшими информационно-коммуникативными и психолингвистическими образовательным...

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name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

83/100

25%

SI (Speed Index)

Value4.9 s

66/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.079

94/100

15%

TTI (Time to Interactive)

Value2.7 s

97/100

10%

onlineclassroom.ru

1257 ms

styles.php

494 ms

styles.php

1255 ms

spellChecker.js

364 ms

javascript-static.js

369 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that all of those requests were addressed to Onlineclassroom.ru and no external sources were called. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Onlineclassroom.ru.

Content Size

267.7 kB

After Optimization

44.8 kB

In fact, the total size of Onlineclassroom.ru main page is 267.7 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. 15% of websites need less resources to load. CSS take 140.7 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 13.5 kB

Original 17.5 kB
After minification 17.2 kB
After compression 4.1 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 13.5 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

Original 377 B
After minification 377 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. Onlineclassroom images are well optimized though.

JavaScript Optimization

-81%

Potential reduce by 88.9 kB

Original 109.1 kB
After minification 73.8 kB
After compression 20.2 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 88.9 kB or 81% of the original size.

CSS Optimization

-86%

Potential reduce by 120.5 kB

Original 140.7 kB
After minification 106.6 kB
After compression 20.2 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. Onlineclassroom.ru needs all CSS files to be minified and compressed as it can save up to 120.5 kB or 86% of the original size.

Requests Now

After Optimization

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Onlineclassroom. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Search Engine Optimization Advices

Language and Encoding

Language Detected

RU
Language Claimed

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Onlineclassroom.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it does not match the claimed English language. Our system also found out that Onlineclassroom.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.

Social Sharing Optimization

onlineclassroom.ru

Open Graph description is not detected on the main page of Onlineclassroom. 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:

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Performance

Accessibility

Best Practices

SEO

Информационно-образовательный портал onlineclassroom.ru

Page Load Speed

First Response

Resources Loaded

Page Rendered