Access univertv.ru. UniverTV.ru - образовательное видео

univertv.ru screenshot

56

Performance

Renders faster than
72% of other websites
44

Accessibility

Visual factors better than
that of 19% of websites
50

Best Practices

More advanced features
available than in
19% of websites
69

SEO

Google-friendlier than
28% of websites

First Response

1.6 sec

Resources Loaded

2.7 sec

Page Rendered

226 ms

univertv.ru screenshot

About Website

Click here to check amazing UniverTV content for Russia. Otherwise, check out these important facts you probably never knew about univertv.ru

Открытый образовательный портал с видеозаписями лекций ведущих российских и зарубежных вузов. На сайте собраны видео по психологии, истории, философии, биологии, физике, экономике и другим наукам. Бол...

Visit univertv.ru

Key Findings

We analyzed Univertv.ru page load time and found that the first response time was 1.6 sec and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value11.7 s

0/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0.026

100/100

15%

TTI (Time to Interactive)

Value10.3 s

25/100

10%

univertv.ru

1559 ms

screen.css

6 ms

highslide.css

9 ms

starrating.css

10 ms

swfobject.js

11 ms

Our browser made a total of 173 requests to load all elements on the main page. We found that 93% of them (161 requests) were addressed to the original Univertv.ru, 2% (3 requests) were made to Counter.yadro.ru and 1% (2 requests) were made to Counter.rambler.ru. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Univertv.ru.

Content Size

697.3 kB

After Optimization

543.6 kB

In fact, the total size of Univertv.ru main page is 697.3 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 491.1 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 85.9 kB

Original 104.5 kB
After minification 96.5 kB
After compression 18.6 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 85.9 kB or 82% of the original size.

Image Optimization

-10%

Potential reduce by 50.2 kB

Original 491.1 kB
After minification 440.9 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. UniverTV images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 11.3 kB

Original 80.2 kB
After minification 80.0 kB
After compression 69.0 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 11.3 kB or 14% of the original size.

CSS Optimization

-30%

Potential reduce by 6.4 kB

Original 21.5 kB
After minification 20.9 kB
After compression 15.1 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. Univertv.ru needs all CSS files to be minified and compressed as it can save up to 6.4 kB or 30% of the original size.

Requests Now

164

After Optimization

102

The browser has sent 164 CSS, Javascripts, AJAX and image requests in order to completely render the main page of UniverTV. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

[id] attributes on active, focusable elements are not unique

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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.

High

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

RU
Language Claimed

RU
Encoding

WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Univertv.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 Univertv.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.

Social Sharing Optimization

univertv.ru

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