Report Summary

  • 39

    Performance

    Renders faster than
    59% of other websites

  • 62

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

vot-zadachka.ru

Сайт всероссийских дистанционных олимпиад и конкурсов | Вот задачка

Page Load Speed

10.6 sec in total

First Response

809 ms

Resources Loaded

8.8 sec

Page Rendered

969 ms

vot-zadachka.ru screenshot

About Website

Visit vot-zadachka.ru now to see the best up-to-date Vot Zadachka content for Russia and also check out these interesting facts you probably never knew about vot-zadachka.ru

Сайт всероссийских дистанционных олимпиад и конкурсов Центра развития мышления и интеллекта

Visit vot-zadachka.ru

Key Findings

We analyzed Vot-zadachka.ru page load time and found that the first response time was 809 ms and then it took 9.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

vot-zadachka.ru performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

9/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value730 ms

41/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value16.0 s

6/100

10%

Network Requests Diagram

vot-zadachka.ru

809 ms

style_020.css

293 ms

highslide.css

295 ms

functions_002.js

297 ms

JsHttpRequest.js

580 ms

Our browser made a total of 88 requests to load all elements on the main page. We found that 86% of them (76 requests) were addressed to the original Vot-zadachka.ru, 6% (5 requests) were made to Site.yandex.net and 1% (1 request) were made to Money.yandex.ru. The less responsive or slowest element that took the longest time to load (3.6 sec) belongs to the original domain Vot-zadachka.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 194.8 kB (11%)

Content Size

1.8 MB

After Optimization

1.6 MB

In fact, the total size of Vot-zadachka.ru main page is 1.8 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. 35% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 85.0 kB

  • Original 97.6 kB
  • After minification 76.0 kB
  • After compression 12.6 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. This page needs HTML code to be minified as it can gain 21.6 kB, which is 22% 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 85.0 kB or 87% of the original size.

Image Optimization

-1%

Potential reduce by 13.2 kB

  • Original 1.5 MB
  • After minification 1.5 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. Vot Zadachka images are well optimized though.

JavaScript Optimization

-45%

Potential reduce by 74.4 kB

  • Original 165.2 kB
  • After minification 158.5 kB
  • After compression 90.8 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 74.4 kB or 45% of the original size.

CSS Optimization

-82%

Potential reduce by 22.2 kB

  • Original 27.1 kB
  • After minification 24.5 kB
  • After compression 4.9 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. Vot-zadachka.ru needs all CSS files to be minified and compressed as it can save up to 22.2 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (16%)

Requests Now

86

After Optimization

72

The browser has sent 86 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vot Zadachka. 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.

Accessibility Review

vot-zadachka.ru accessibility score

62

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

vot-zadachka.ru best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

vot-zadachka.ru SEO score

91

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

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1251

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

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