Tools & Wizards About Us
relab.ru screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

relab.ru

Цифровые лаборатории для школы Релаб

Page Load Speed

6.2 sec in total

First Response

846 ms

Resources Loaded

5.1 sec

Page Rendered

248 ms

relab.ru screenshot

About Website

Click here to check amazing Relab content for Russia. Otherwise, check out these important facts you probably never knew about relab.ru

Цифровые лаборатории - это настоящий цифровой помощник школьника для проведения лабораторных работ и практикумов в школе

Visit relab.ru

Key Findings

We analyzed Relab.ru page load time and found that the first response time was 846 ms and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

relab.ru performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value11.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.6 s

0/100

25%

SI (Speed Index)

Value14.9 s

1/100

10%

TBT (Total Blocking Time)

Value2,120 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.072

96/100

15%

TTI (Time to Interactive)

Value29.5 s

0/100

10%

Network Requests Diagram

relab.ru

846 ms

core.min.css

548 ms

anythingslider.css

640 ms

theme-minimalist-round.css

540 ms

jquery.fancybox.css

539 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 63% of them (30 requests) were addressed to the original Relab.ru, 17% (8 requests) were made to Youtube.com and 8% (4 requests) were made to Jnn-pa.googleapis.com. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Relab.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 822.8 kB (63%)

Content Size

1.3 MB

After Optimization

487.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Relab.ru main page is 1.3 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 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 21.3 kB

  • Original 28.0 kB
  • After minification 22.9 kB
  • After compression 6.7 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 5.1 kB, which is 18% 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 21.3 kB or 76% of the original size.

Image Optimization

-77%

Potential reduce by 795.4 kB

  • Original 1.0 MB
  • After minification 233.3 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. Obviously, Relab needs image optimization as it can save up to 795.4 kB or 77% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 2.5 kB

  • Original 175.1 kB
  • After minification 175.1 kB
  • After compression 172.6 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. This website has mostly compressed JavaScripts.

CSS Optimization

-5%

Potential reduce by 3.6 kB

  • Original 78.0 kB
  • After minification 78.0 kB
  • After compression 74.4 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. Relab.ru has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 17 (41%)

Requests Now

41

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Relab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

relab.ru

relab.ru

846 ms

core.min.css

core.min.css

548 ms

anythingslider.css

anythingslider.css

640 ms

theme-minimalist-round.css

theme-minimalist-round.css

540 ms

jquery.fancybox.css

jquery.fancybox.css

539 ms

jquery.fancybox-thumbs.css

jquery.fancybox-thumbs.css

545 ms

template_style.css

template_style.css

544 ms

ajax.min.css

ajax.min.css

1058 ms

popup.min.css

popup.min.css

1077 ms

style.css

style.css

1078 ms

style.css

style.css

1081 ms

template_styles.css

template_styles.css

1078 ms

jvHADjs5rDQ

jvHADjs5rDQ

90 ms

Irkc3gYx_fE

Irkc3gYx_fE

429 ms

3_1_FFFFFFFF_FFFFFFFF_0_pageviews

3_1_FFFFFFFF_FFFFFFFF_0_pageviews

483 ms

rocket-loader.min.js

rocket-loader.min.js

730 ms

main-logo-new.png

main-logo-new.png

1168 ms

magnifier.png

magnifier.png

1593 ms

microsoft_s.png

microsoft_s.png

1598 ms

kids.png

kids.png

1606 ms

standart.png

standart.png

1618 ms

inside.png

inside.png

1622 ms

point.png

point.png

1694 ms

sensors.png

sensors.png

2131 ms

catalog.png

catalog.png

2142 ms

interactive2.jpg

interactive2.jpg

1615 ms

main-logo-bottom.png

main-logo-bottom.png

2140 ms

www-player.css

www-player.css

12 ms

www-embed-player.js

www-embed-player.js

29 ms

base.js

base.js

52 ms

ad_status.js

ad_status.js

233 ms

wQkdmVX08K_HD_9NHn0QjGfgu04J0GwVvAmYELAxlpM.js

wQkdmVX08K_HD_9NHn0QjGfgu04J0GwVvAmYELAxlpM.js

196 ms

embed.js

embed.js

127 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

41 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

47 ms

id

id

22 ms

Create

Create

202 ms

Create

Create

300 ms

GenerateIT

GenerateIT

17 ms

GenerateIT

GenerateIT

16 ms

button-find.png

button-find.png

1061 ms

bg-menu-left.png

bg-menu-left.png

1086 ms

openSansLight.ttf

openSansLight.ttf

2114 ms

openSansLightItalic.ttf

openSansLightItalic.ttf

2564 ms

openSansSemibold.ttf

openSansSemibold.ttf

2607 ms

log_event

log_event

20 ms

log_event

log_event

18 ms

ajax.min.js

ajax.min.js

543 ms

Accessibility Review

relab.ru accessibility score

79

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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

Best Practices

relab.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

High

Page has valid source maps

SEO Factors

relab.ru SEO score

75

Search Engine Optimization Advices

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 Relab.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 Relab.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

relab.ru

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