Report Summary

  • 13


    Renders faster than
    25% of other websites

  • 0


  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 0


CompMechLab - разработка и применение цифровых двойников (digital twin), цифровое проектирование, CAD/CAE/CAM/CAO/HPC технологии

Page Load Speed

36.5 sec in total

First Response

1.7 sec

Resources Loaded

34 sec

Page Rendered

838 ms screenshot

About Website

Visit now to see the best up-to-date Comp Mech Lab content for Russia and also check out these interesting facts you probably never knew about

Инжиниринговый центр «Центр компьютерного инжиниринга» (CompMechLab®) Санкт-Петербургского политехнического университета Петра Великого – лидер в сфере цифрового проектирования и моделирования, компью...


Key Findings

We analyzed page load time and found that the first response time was 1.7 sec and then it took 34.8 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics performance score


Measured Metrics





FCP (First Contentful Paint)

Value4.7 s



LCP (Largest Contentful Paint)

Value39.4 s



SI (Speed Index)

Value19.8 s



TBT (Total Blocking Time)

Value18,040 ms



CLS (Cumulative Layout Shift)




TTI (Time to Interactive)

Value51.2 s



Network Requests Diagram

1712 ms


116 ms


551 ms


671 ms


550 ms

Our browser made a total of 123 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original, 33% (40 requests) were made to and 29% (36 requests) were made to The less responsive or slowest element that took the longest time to load (18.7 sec) relates to the external source

Page Optimization Overview & Recommendations

Page size can be reduced by 636.7 kB (14%)

Content Size

4.6 MB

After Optimization

3.9 MB

In fact, the total size of main page is 4.6 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 4.0 MB which makes up the majority of the site volume.

HTML Optimization


Potential reduce by 336.3 kB

  • Original 372.2 kB
  • After minification 245.2 kB
  • After compression 35.9 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. This page needs HTML code to be minified as it can gain 127.1 kB, which is 34% 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 336.3 kB or 90% of the original size.

Image Optimization


Potential reduce by 172.4 kB

  • Original 4.0 MB
  • After minification 3.8 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. Comp Mech Lab images are well optimized though.

JavaScript Optimization


Potential reduce by 99.4 kB

  • Original 147.9 kB
  • After minification 117.4 kB
  • After compression 48.6 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 99.4 kB or 67% of the original size.

CSS Optimization


Potential reduce by 28.7 kB

  • Original 34.8 kB
  • After minification 23.9 kB
  • After compression 6.1 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. needs all CSS files to be minified and compressed as it can save up to 28.7 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (28%)

Requests Now


After Optimization


The browser has sent 119 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Comp Mech Lab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Best Practices best practices score


Areas of Improvement

Trust and Safety




Does not use HTTPS


Includes front-end JavaScript libraries with known security vulnerabilities


Ensure CSP is effective against XSS attacks

User Experience




Serves images with low resolution





Detected JavaScript libraries


Page has valid source maps

SEO Factors SEO score


Language and Encoding

  • Language Detected


  • Language Claimed


  • Encoding


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