Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    65% of websites

  • 92

    SEO

    Google-friendlier than
    79% of websites

naukaonline.ru

Домен продается. Купить в магазине доменов RU-CENTER

Page Load Speed

8 sec in total

First Response

1.2 sec

Resources Loaded

4.9 sec

Page Rendered

1.8 sec

naukaonline.ru screenshot

About Website

Welcome to naukaonline.ru homepage info - get ready to check Naukaonline best content right away, or after learning these important things about naukaonline.ru

Узнать подробнее о домене в магазине доменов RU-CENTER.

Visit naukaonline.ru

Key Findings

We analyzed Naukaonline.ru page load time and found that the first response time was 1.2 sec and then it took 6.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

naukaonline.ru performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

85/100

10%

LCP (Largest Contentful Paint)

Value9.6 s

0/100

25%

SI (Speed Index)

Value6.9 s

33/100

10%

TBT (Total Blocking Time)

Value260 ms

83/100

30%

CLS (Cumulative Layout Shift)

Value0.063

97/100

15%

TTI (Time to Interactive)

Value8.1 s

42/100

10%

Network Requests Diagram

www.naukaonline.ru

1225 ms

style.css

384 ms

pagenavi-css.css

256 ms

jquery.min.js

31 ms

core.min.js

263 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 88% of them (93 requests) were addressed to the original Naukaonline.ru, 4% (4 requests) were made to 0.gravatar.com and 4% (4 requests) were made to Site.yandex.net. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Naukaonline.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (30%)

Content Size

3.5 MB

After Optimization

2.4 MB

In fact, the total size of Naukaonline.ru main page is 3.5 MB. 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 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 116.7 kB

  • Original 136.3 kB
  • After minification 116.7 kB
  • After compression 19.5 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 19.5 kB, which is 14% 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 116.7 kB or 86% of the original size.

Image Optimization

-23%

Potential reduce by 694.4 kB

  • Original 3.0 MB
  • After minification 2.3 MB

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, Naukaonline needs image optimization as it can save up to 694.4 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 186.5 kB

  • Original 264.5 kB
  • After minification 259.0 kB
  • After compression 78.0 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 186.5 kB or 71% of the original size.

CSS Optimization

-83%

Potential reduce by 31.2 kB

  • Original 37.7 kB
  • After minification 29.1 kB
  • After compression 6.5 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. Naukaonline.ru needs all CSS files to be minified and compressed as it can save up to 31.2 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (28%)

Requests Now

102

After Optimization

73

The browser has sent 102 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Naukaonline. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

naukaonline.ru accessibility score

86

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

High

<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

High

Links do not have a discernible name

Best Practices

naukaonline.ru best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

naukaonline.ru SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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

High

Document uses legible font sizes

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 Naukaonline.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 Naukaonline.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

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