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Report Summary

About Website

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

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name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

36/100

25%

SI (Speed Index)

Value4.3 s

76/100

10%

TBT (Total Blocking Time)

Value1,090 ms

24/100

30%

CLS (Cumulative Layout Shift)

Value0.012

100/100

15%

TTI (Time to Interactive)

Value7.9 s

43/100

10%

proobr.ru

491 ms

www.proobr.ru

492 ms

style.css

138 ms

function.js

273 ms

top_fon.gif

141 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 80% of them (24 requests) were addressed to the original Proobr.ru, 7% (2 requests) were made to Counter.yadro.ru and 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (694 ms) belongs to the original domain Proobr.ru.

Content Size

229.8 kB

After Optimization

205.7 kB

In fact, the total size of Proobr.ru main page is 229.8 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. Images take 186.0 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 11.5 kB

Original 16.4 kB
After minification 15.6 kB
After compression 4.9 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 11.5 kB or 70% of the original size.

Image Optimization

-3%

Potential reduce by 4.9 kB

Original 186.0 kB
After minification 181.1 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. Proobr images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 3.9 kB

Original 22.4 kB
After minification 22.4 kB
After compression 18.6 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 3.9 kB or 17% of the original size.

CSS Optimization

-78%

Potential reduce by 3.9 kB

Original 4.9 kB
After minification 3.9 kB
After compression 1.1 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. Proobr.ru needs all CSS files to be minified and compressed as it can save up to 3.9 kB or 78% of the original size.

Requests Now

After Optimization

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Proobr. 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.

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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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/).

High

Document uses legible font sizes

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 Proobr.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 Proobr.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

proobr.ru

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Центр Профессионального образования — эффективное обучение по современным программам и методикам с минимальным отрывом от производственной деятельност...

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)