Tools & Wizards About Us
school-assistant.ru screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

school-assistant.ru

Школьный помощник - учебники онлайн, правила, задачи, примеры

Page Load Speed

3.5 sec in total

First Response

504 ms

Resources Loaded

2.9 sec

Page Rendered

147 ms

school-assistant.ru screenshot

About Website

Click here to check amazing School Assistant content for Russia. Otherwise, check out these important facts you probably never knew about school-assistant.ru

Школьный помощник - учебники онлайн по школьной программе с заданиями, проверкой решений и статистикой занятий.

Visit school-assistant.ru

Key Findings

We analyzed School-assistant.ru page load time and found that the first response time was 504 ms 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.

Performance Metrics

school-assistant.ru performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value300 ms

79/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.2 s

32/100

10%

Network Requests Diagram

school-assistant.ru

504 ms

school-assistant.ru

497 ms

c44.css

235 ms

1.css

352 ms

big_min.js

936 ms

Our browser made a total of 21 requests to load all elements on the main page. We found that 90% of them (19 requests) were addressed to the original School-assistant.ru, 5% (1 request) were made to Googletagmanager.com and 5% (1 request) were made to Mc.yandex.ru. The less responsive or slowest element that took the longest time to load (936 ms) belongs to the original domain School-assistant.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 511.0 kB (68%)

Content Size

753.1 kB

After Optimization

242.1 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of School-assistant.ru main page is 753.1 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. Javascripts take 731.0 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 5.9 kB

  • Original 8.8 kB
  • After minification 7.9 kB
  • After compression 2.9 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 5.9 kB or 67% of the original size.

JavaScript Optimization

-69%

Potential reduce by 501.2 kB

  • Original 731.0 kB
  • After minification 731.0 kB
  • After compression 229.7 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 501.2 kB or 69% of the original size.

CSS Optimization

-29%

Potential reduce by 3.9 kB

  • Original 13.3 kB
  • After minification 13.3 kB
  • After compression 9.5 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. School-assistant.ru needs all CSS files to be minified and compressed as it can save up to 3.9 kB or 29% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (32%)

Requests Now

19

After Optimization

13

  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of School Assistant. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

school-assistant.ru

school-assistant.ru

504 ms

school-assistant.ru

school-assistant.ru

497 ms

c44.css

c44.css

235 ms

1.css

1.css

352 ms

big_min.js

big_min.js

936 ms

js

js

64 ms

tag.js

tag.js

863 ms

matematika_body_fon_header.gif

matematika_body_fon_header.gif

119 ms

sqware_matematika3.gif

sqware_matematika3.gif

121 ms

nameB72.gif

nameB72.gif

120 ms

searchTransparent.gif

searchTransparent.gif

236 ms

note1p.gif

note1p.gif

237 ms

sqware_matematika2.gif

sqware_matematika2.gif

237 ms

note22p.gif

note22p.gif

355 ms

sqware_matematika.gif

sqware_matematika.gif

354 ms

leftmenuback.gif

leftmenuback.gif

355 ms

center_book_matematika4.gif

center_book_matematika4.gif

355 ms

matematika_fon_header4.gif

matematika_fon_header4.gif

355 ms

dialog_button2.gif

dialog_button2.gif

357 ms

inputtext.gif

inputtext.gif

472 ms

inputback3.gif

inputback3.gif

471 ms

Accessibility Review

school-assistant.ru accessibility score

89

Accessibility Issues

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

Image elements do not have [alt] attributes

Best Practices

school-assistant.ru best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

school-assistant.ru SEO score

69

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise School-assistant.ru 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 School-assistant.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

school-assistant.ru

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