Tools & Wizards About Us
compmechlab.ru screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

compmechlab.ru

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

Page Load Speed

8 sec in total

First Response

507 ms

Resources Loaded

4.5 sec

Page Rendered

3 sec

compmechlab.ru screenshot

About Website

Visit compmechlab.ru 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 compmechlab.ru

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

Visit compmechlab.ru

Key Findings

We analyzed Compmechlab.ru page load time and found that the first response time was 507 ms and then it took 7.5 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

compmechlab.ru performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value18.2 s

0/100

25%

SI (Speed Index)

Value16.9 s

0/100

10%

TBT (Total Blocking Time)

Value760 ms

39/100

30%

CLS (Cumulative Layout Shift)

Value0.468

19/100

15%

TTI (Time to Interactive)

Value38.4 s

0/100

10%

Network Requests Diagram

compmechlab.ru

507 ms

fea.ru

1478 ms

css

45 ms

clear.css

360 ms

screen.css

473 ms

Our browser made a total of 101 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Compmechlab.ru, 31% (31 requests) were made to Fea.ru and 29% (29 requests) were made to Assets.compmechlab.ru. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Assets.compmechlab.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 917.4 kB (8%)

Content Size

11.9 MB

After Optimization

10.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Compmechlab.ru main page is 11.9 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. 70% of websites need less resources to load. Images take 11.2 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 321.4 kB

  • Original 362.0 kB
  • After minification 302.4 kB
  • After compression 40.6 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 59.7 kB, which is 16% 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 321.4 kB or 89% of the original size.

Image Optimization

-4%

Potential reduce by 487.6 kB

  • Original 11.2 MB
  • After minification 10.7 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

-30%

Potential reduce by 77.8 kB

  • Original 259.7 kB
  • After minification 225.4 kB
  • After compression 181.9 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 77.8 kB or 30% of the original size.

CSS Optimization

-82%

Potential reduce by 30.6 kB

  • Original 37.1 kB
  • After minification 25.3 kB
  • After compression 6.5 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. Compmechlab.ru needs all CSS files to be minified and compressed as it can save up to 30.6 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (32%)

Requests Now

96

After Optimization

65

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 96 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 22 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

compmechlab.ru

compmechlab.ru

507 ms

fea.ru

fea.ru

1478 ms

css

css

45 ms

clear.css

clear.css

360 ms

screen.css

screen.css

473 ms

mddm.css

mddm.css

357 ms

pagination.css

pagination.css

373 ms

slick.css

slick.css

33 ms

jquery.jscrollpane.css

jquery.jscrollpane.css

371 ms

content.css

content.css

473 ms

jquery.accordion.css

jquery.accordion.css

477 ms

industriaprize.css

industriaprize.css

493 ms

jquery-1.11.0.min.js

jquery-1.11.0.min.js

35 ms

jquery-migrate-1.2.1.min.js

jquery-migrate-1.2.1.min.js

36 ms

cml-bench-bg.png

cml-bench-bg.png

714 ms

cours-twin-sept-2024-870h450.jpg

cours-twin-sept-2024-870h450.jpg

1208 ms

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1c-870x450.jpg

1328 ms

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1103 ms

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1103 ms

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991 ms

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1009 ms

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1348 ms

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1253 ms

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1212 ms

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1334 ms

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1325 ms

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1336 ms

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1375 ms

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1446 ms

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9167f04f9547274a5016297882422854-titul870.jpg

1561 ms

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photo-2024-04-20-02-48-59870.jpg

1454 ms

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1571 ms

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1469 ms

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1498 ms

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1565 ms

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1573 ms

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1706 ms

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1646 ms

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1679 ms

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1683 ms

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1688 ms

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1691 ms

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1743 ms

2833_62833f54147da91fe532eb37581574a7.jpg

2833_62833f54147da91fe532eb37581574a7.jpg

1796 ms

logo.jpg

logo.jpg

271 ms

search.png

search.png

147 ms

views.png

views.png

147 ms

cours-twin-sept-1200x800.jpg

cours-twin-sept-1200x800.jpg

1406 ms

1c-1200x800.jpg

1c-1200x800.jpg

1714 ms

505e7b1e07610711216f04f8360c0ca9-titul1200.jpg

505e7b1e07610711216f04f8360c0ca9-titul1200.jpg

1234 ms

3g2a4475.jpg

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1144 ms

photo-5242629427769236545-w.jpg

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1393 ms

img-7651-kopiya.jpg

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1045 ms

img-6508.jpg

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1278 ms

berezhlivoe-proizvodstvo-12.jpg

berezhlivoe-proizvodstvo-12.jpg

1395 ms

64101200.jpg

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1477 ms

inp-1200.jpg

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1510 ms

dsc-3438.jpg

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1518 ms

imgl3630-1-kopiya.jpg

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1522 ms

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1523 ms

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1616 ms

mia-4110-870h450.jpg

mia-4110-870h450.jpg

1644 ms

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1646 ms

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1648 ms

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1645 ms

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1727 ms

img-4073.jpg

img-4073.jpg

1745 ms

all.js

all.js

1359 ms

arrow_down_small.png

arrow_down_small.png

120 ms

o-0mIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjcz6L1SoM-jCpoiyD9A-9e6VQ.woff

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74 ms

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75 ms

overlay_dark.png

overlay_dark.png

124 ms

jquery.mixitup.min.js

jquery.mixitup.min.js

47 ms

jquery.mousewheel.js

jquery.mousewheel.js

118 ms

mwheelIntent.js

mwheelIntent.js

162 ms

jquery.jscrollpane.min.js

jquery.jscrollpane.min.js

264 ms

misc_js.js

misc_js.js

173 ms

drop-down-menu.1.0a.js

drop-down-menu.1.0a.js

210 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

235 ms

jquery.accordion.js

jquery.accordion.js

291 ms

es5-shims.min.js

es5-shims.min.js

594 ms

share.js

share.js

953 ms

FancyZoom.js

FancyZoom.js

298 ms

FancyZoomHTML.js

FancyZoomHTML.js

293 ms

watch.js

watch.js

45 ms

politech-rus_small.svg

politech-rus_small.svg

332 ms

mail.png

mail.png

350 ms

rss.png

rss.png

381 ms

youtube-48.png

youtube-48.png

410 ms

vkontakte-48.png

vkontakte-48.png

410 ms

overlay.png

overlay.png

420 ms

slick.min.js

slick.min.js

4 ms

ippt-rus_small.svg

ippt-rus_small.svg

410 ms

print.css

print.css

118 ms

analytics.js

analytics.js

21 ms

collect

collect

14 ms

js

js

60 ms

jquery.min.js

jquery.min.js

211 ms

tag.js

tag.js

1062 ms

suggest.js

suggest.js

140 ms

opensearch.js

opensearch.js

293 ms

Accessibility Review

compmechlab.ru accessibility score

79

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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.

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

Links do not have a discernible name

Best Practices

compmechlab.ru best practices score

75

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

Page has valid source maps

SEO Factors

compmechlab.ru SEO score

62

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

    N/A

  • Encoding

    UTF-8

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

compmechlab.ru

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: