Access en.nstu.ru. Novosibirsk State Technical University

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value9.0 s

1/100

25%

SI (Speed Index)

Value9.1 s

14/100

10%

TBT (Total Blocking Time)

Value1,950 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.0 s

16/100

10%

en.nstu.ru

696 ms

en.nstu.ru

2520 ms

en.nstu.ru

1120 ms

compatibility.min.css

561 ms

template_a3e6df143720039e60645eeb33738c93_v1.css

2440 ms

Our browser made a total of 85 requests to load all elements on the main page. We found that 84% of them (71 requests) were addressed to the original En.nstu.ru, 7% (6 requests) were made to Api-maps.yandex.ru and 4% (3 requests) were made to Mc.yandex.com. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain En.nstu.ru.

Content Size

4.0 MB

After Optimization

2.2 MB

In fact, the total size of En.nstu.ru main page is 4.0 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. 65% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 587.0 kB

Original 717.9 kB
After minification 558.8 kB
After compression 130.9 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 159.1 kB, which is 22% 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 587.0 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 49.1 kB

Original 1.8 MB
After minification 1.8 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. En Nstu images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 225.0 kB

Original 409.5 kB
After minification 400.9 kB
After compression 184.4 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 225.0 kB or 55% of the original size.

CSS Optimization

-86%

Potential reduce by 877.9 kB

Original 1.0 MB
After minification 924.5 kB
After compression 143.2 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. En.nstu.ru needs all CSS files to be minified and compressed as it can save up to 877.9 kB or 86% of the original size.

Requests Now

After Optimization

The browser has sent 75 CSS, Javascripts, AJAX and image requests in order to completely render the main page of En Nstu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

button, link, and menuitem elements do not have accessible names.

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.

High

Buttons do not have an accessible name

High

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

EN
Language Claimed

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise En.nstu.ru can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that En.nstu.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

en.nstu.ru

Open Graph data is detected on the main page of En Nstu. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

Novosibirsk State Technical University – a flagship university in Russia

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

en.nstu.ru

en.nstu.ru

en.nstu.ru

compatibility.min.css

template_a3e6df143720039e60645eeb33738c93_v1.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

en.nstu.ru

en.nstu.ru

en.nstu.ru

compatibility.min.css

template_a3e6df143720039e60645eeb33738c93_v1.css

popup.min.css

core.min.js

kernel_main_v1.js

dexie3.bundle.min.js

core_ls.min.js

core_frame_cache.min.js

jquery-2.2.4.min.js

ajax.js

fonts.css

template_22a8d398d3ece5df48fc1bdd5630f997_v1.js

js

ba.js

tktmy43a6w7m3q2a92ayoku73f4xq98x.svg

272702d23701be33271ba776a7bf0a52.svg

r36w8n9vtm94he7gxg645qiqayfs3aue.jpg

69d91vcqoyeob4gbgfxhrcyyvhi82eal.jpeg

1ycr1as2xk65o1q01e1rj4kevuomexwx.jpg

p8t94hmgf0sro762zn63x0fselvcffj4.jpg

08e78e9705cb12b66ab0930c268a95e6.jpg

cuba.svg

3ae8921025f97476379b4d9ab4897477.jpg

china.svg

a29b309a28a1da781f9a60907e31a1ad.jpg

usa.svg

3b60c6d11138f0470d79dee6f6035e32.jpg

syria.svg

58586ef151e980f0a33884c2d604add3.jpg

mongolia.svg

8e2cc82885250f23ce8287256ea397b1.jpg

375d66533387d3a7987f5d2fbb7952fa.jpg

turkmenistan.svg

3fc431efe5af31b52fd9a1219737e857.jpg

sri%20lanka.svg

5fa75ce91753731d08103709aef9960f.jpg

republic%20of%20korea.svg

679e2e8f619af354f5046b2168c9341d.jpg

mexico.svg

ffb31731e2075465451a62a16e4a2229.jpg