Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

Page Load Speed

3.7 sec in total

First Response

641 ms

Resources Loaded

2.8 sec

Page Rendered

272 ms

profvibor.ru screenshot

About Website

Welcome to profvibor.ru homepage info - get ready to check Profvibor best content for Russia right away, or after learning these important things about profvibor.ru

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Key Findings

We analyzed Profvibor.ru page load time and found that the first response time was 641 ms and then it took 3.1 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

profvibor.ru performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

41/100

25%

SI (Speed Index)

Value6.0 s

47/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.014

100/100

15%

TTI (Time to Interactive)

Value5.8 s

66/100

10%

Network Requests Diagram

profvibor.ru

641 ms

common.css

223 ms

default.css

224 ms

lightwindow.css

227 ms

flowplayer-3.2.2.min.js

230 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 91% of them (59 requests) were addressed to the original Profvibor.ru, 3% (2 requests) were made to Bitrix.info and 3% (2 requests) were made to Mc.yandex.ru. The less responsive or slowest element that took the longest time to load (704 ms) belongs to the original domain Profvibor.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 79.6 kB (17%)

Content Size

472.2 kB

After Optimization

392.6 kB

In fact, the total size of Profvibor.ru main page is 472.2 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. 40% of websites need less resources to load. Images take 200.4 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 41.6 kB

  • Original 57.6 kB
  • After minification 54.9 kB
  • After compression 16.0 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 41.6 kB or 72% of the original size.

Image Optimization

-4%

Potential reduce by 7.7 kB

  • Original 200.4 kB
  • After minification 192.6 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. Profvibor images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 20.8 kB

  • Original 182.0 kB
  • After minification 181.7 kB
  • After compression 161.2 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 20.8 kB or 11% of the original size.

CSS Optimization

-29%

Potential reduce by 9.5 kB

  • Original 32.3 kB
  • After minification 31.8 kB
  • After compression 22.8 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. Profvibor.ru needs all CSS files to be minified and compressed as it can save up to 9.5 kB or 29% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (43%)

Requests Now

54

After Optimization

31

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Profvibor. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

profvibor.ru accessibility score

64

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.

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

profvibor.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

profvibor.ru SEO score

58

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    RU

  • Encoding

    WINDOWS-1251

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