Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

Page Load Speed

30.2 sec in total

First Response

4.2 sec

Resources Loaded

25.2 sec

Page Rendered

696 ms

chembaby.com screenshot

About Website

Welcome to chembaby.com homepage info - get ready to check Chembaby best content for Russia right away, or after learning these important things about chembaby.com

Самый полезный и удобный сайт Химического факультета МГУ! Это Химфак МГУ, Детка! Учебные материалы, преподаватели, отзывы, поступающим.

Visit chembaby.com

Key Findings

We analyzed Chembaby.com page load time and found that the first response time was 4.2 sec and then it took 25.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

chembaby.com performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.6 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value0.6 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.6 s

100/100

10%

Network Requests Diagram

chembaby.com

4210 ms

wp-emoji-release.min.js

634 ms

jquery.autocomplete.css

617 ms

front.css

800 ms

style.css

799 ms

Our browser made a total of 159 requests to load all elements on the main page. We found that 25% of them (40 requests) were addressed to the original Chembaby.com, 59% (94 requests) were made to Avatars.yandex.net and 11% (17 requests) were made to Music.yandex.ru. The less responsive or slowest element that took the longest time to load (20.5 sec) relates to the external source Informer.yandex.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 396.7 kB (36%)

Content Size

1.1 MB

After Optimization

698.5 kB

In fact, the total size of Chembaby.com main page is 1.1 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. 50% of websites need less resources to load. Images take 603.5 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 47.0 kB

  • Original 58.8 kB
  • After minification 57.3 kB
  • After compression 11.8 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 47.0 kB or 80% of the original size.

Image Optimization

-5%

Potential reduce by 32.0 kB

  • Original 603.5 kB
  • After minification 571.5 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. Chembaby images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 156.2 kB

  • Original 243.4 kB
  • After minification 243.2 kB
  • After compression 87.2 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 156.2 kB or 64% of the original size.

CSS Optimization

-85%

Potential reduce by 161.5 kB

  • Original 189.4 kB
  • After minification 165.4 kB
  • After compression 27.9 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. Chembaby.com needs all CSS files to be minified and compressed as it can save up to 161.5 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 61 (40%)

Requests Now

154

After Optimization

93

The browser has sent 154 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chembaby. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

chembaby.com accessibility score

90

Accessibility Issues

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

chembaby.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

chembaby.com SEO score

67

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    RU

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chembaby.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Russian. Our system also found out that Chembaby.com 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 data is detected on the main page of Chembaby. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: