Report Summary

  • 86

    Performance

    Renders faster than
    89% of other websites

  • 42

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

chem-astu.ru

Институт биотехнологии, пищевой и химической инженерии Алтайского государственного технического университета имени И.И. Ползунова

Page Load Speed

4.4 sec in total

First Response

524 ms

Resources Loaded

3.7 sec

Page Rendered

128 ms

chem-astu.ru screenshot

About Website

Click here to check amazing Chem Astu content for Russia. Otherwise, check out these important facts you probably never knew about chem-astu.ru

Алтайский государственный технический университет. Домашняя страница Института биотехнологии, пищевой и химической инженерии.

Visit chem-astu.ru

Key Findings

We analyzed Chem-astu.ru page load time and found that the first response time was 524 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

chem-astu.ru performance score

86

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value1.3 s

100/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value430 ms

64/100

30%

CLS (Cumulative Layout Shift)

Value0.034

100/100

15%

TTI (Time to Interactive)

Value5.0 s

76/100

10%

Network Requests Diagram

chem-astu.ru

524 ms

chem-astu.ru

559 ms

all.js

741 ms

code.js

788 ms

top100.js

626 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 42% of them (8 requests) were addressed to the original Chem-astu.ru, 21% (4 requests) were made to Top-fwz1.mail.ru and 5% (1 request) were made to Site.yandex.net. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Yastatic.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 20.2 kB (10%)

Content Size

212.1 kB

After Optimization

192.0 kB

In fact, the total size of Chem-astu.ru main page is 212.1 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. 20% of websites need less resources to load. Javascripts take 110.3 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 14.9 kB

  • Original 20.3 kB
  • After minification 18.4 kB
  • After compression 5.3 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 14.9 kB or 74% of the original size.

Image Optimization

-1%

Potential reduce by 757 B

  • Original 81.6 kB
  • After minification 80.9 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. Chem Astu images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 4.5 kB

  • Original 110.3 kB
  • After minification 110.3 kB
  • After compression 105.8 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.

Requests Breakdown

Number of requests can be reduced by 5 (31%)

Requests Now

16

After Optimization

11

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chem Astu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

chem-astu.ru accessibility score

42

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.

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

chem-astu.ru best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

chem-astu.ru SEO score

69

Search Engine Optimization Advices

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

    WINDOWS-1251

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

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