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psi.nsc.ru screenshot

Report Summary

  • 80

    Performance

    Renders faster than
    86% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

psi.nsc.ru

PSI'19 | A.P. Ershov Informatics Conference PSI'19

Page Load Speed

6 sec in total

First Response

511 ms

Resources Loaded

5.1 sec

Page Rendered

449 ms

psi.nsc.ru screenshot

About Website

Visit psi.nsc.ru now to see the best up-to-date PSI Nsc content for Russia and also check out these interesting facts you probably never knew about psi.nsc.ru

A.P. Ershov Informatics Conference (the PSI Conference Series, 12th edition) is the premier international forum in Russia for research and applications in Computer Science (CS) and Software Engineerin...

Visit psi.nsc.ru

Key Findings

We analyzed Psi.nsc.ru page load time and found that the first response time was 511 ms and then it took 5.5 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

psi.nsc.ru performance score

80

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

90/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value4.8 s

66/100

10%

TBT (Total Blocking Time)

Value490 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.014

100/100

15%

TTI (Time to Interactive)

Value5.6 s

69/100

10%

Network Requests Diagram

psi.nsc.ru

511 ms

psi.nsc.ru

1235 ms

css_VtKboUoEpgC4CmETfK5fb95S7v87r-Aes8lHyA-kwz8.css

165 ms

css_LxxBr7HdGNj-peQzWETrUJUM2MEKYctLoFX9sfbFZLw.css

328 ms

logo.svg

476 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 98% of them (56 requests) were addressed to the original Psi.nsc.ru, 2% (1 request) were made to Mc.yandex.ru. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Psi.nsc.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 790.1 kB (13%)

Content Size

6.2 MB

After Optimization

5.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Psi.nsc.ru main page is 6.2 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 5.9 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 90.2 kB

  • Original 101.4 kB
  • After minification 76.0 kB
  • After compression 11.2 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 25.4 kB, which is 25% 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 90.2 kB or 89% of the original size.

Image Optimization

-12%

Potential reduce by 699.7 kB

  • Original 5.9 MB
  • After minification 5.2 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. Obviously, PSI Nsc needs image optimization as it can save up to 699.7 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 12 B

  • Original 101.8 kB
  • After minification 101.8 kB
  • After compression 101.8 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.

CSS Optimization

-0%

Potential reduce by 139 B

  • Original 32.8 kB
  • After minification 32.8 kB
  • After compression 32.7 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. Psi.nsc.ru has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

45

After Optimization

45

  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PSI Nsc. According to our analytics all requests are already optimized.

Network Requests Diagram

psi.nsc.ru

psi.nsc.ru

511 ms

psi.nsc.ru

psi.nsc.ru

1235 ms

css_VtKboUoEpgC4CmETfK5fb95S7v87r-Aes8lHyA-kwz8.css

css_VtKboUoEpgC4CmETfK5fb95S7v87r-Aes8lHyA-kwz8.css

165 ms

css_LxxBr7HdGNj-peQzWETrUJUM2MEKYctLoFX9sfbFZLw.css

css_LxxBr7HdGNj-peQzWETrUJUM2MEKYctLoFX9sfbFZLw.css

328 ms

logo.svg

logo.svg

476 ms

_1.jpg

_1.jpg

1663 ms

_4.jpg

_4.jpg

2441 ms

_2.jpg

_2.jpg

2954 ms

_3.jpg

_3.jpg

1284 ms

_1_1020.jpg

_1_1020.jpg

1431 ms

_4_1020.jpg

_4_1020.jpg

1657 ms

_2_1020.jpg

_2_1020.jpg

1774 ms

_3_1020.jpg

_3_1020.jpg

1653 ms

_1_740.jpg

_1_740.jpg

1833 ms

_4_740.jpg

_4_740.jpg

1855 ms

_2_740.jpg

_2_740.jpg

1854 ms

_3_740.jpg

_3_740.jpg

1943 ms

js_y8A6fCVay4JxxxF-ZAKhTOzyNTAWcJ7A6oNuWLUfFtQ.js

js_y8A6fCVay4JxxxF-ZAKhTOzyNTAWcJ7A6oNuWLUfFtQ.js

2012 ms

vardi.jpg

vardi.jpg

2188 ms

andrew_yao_psi.jpg

andrew_yao_psi.jpg

2186 ms

auer.jpg

auer.jpg

2189 ms

katoen.jpg

katoen.jpg

2190 ms

marta-kwiatowska-160.jpg

marta-kwiatowska-160.jpg

2190 ms

veanes.jpg

veanes.jpg

2191 ms

logo_iis.gif

logo_iis.gif

2258 ms

logo_nsu_small_0.png

logo_nsu_small_0.png

2334 ms

logo_lnsc.jpg

logo_lnsc.jpg

2339 ms

springer.png

springer.png

2341 ms

rfbr_en_logo.jpg

rfbr_en_logo.jpg

2415 ms

arqa_logo.png

arqa_logo.png

2492 ms

sibers_logo.png

sibers_logo.png

2499 ms

sti_int_logo.gif

sti_int_logo.gif

2501 ms

sti_logo.gif

sti_logo.gif

2574 ms

microsoft_research.png

microsoft_research.png

2589 ms

pic_061.jpg

pic_061.jpg

2663 ms

img_0359.jpg

img_0359.jpg

2679 ms

pic_098.jpg

pic_098.jpg

2671 ms

image021.jpg

image021.jpg

2737 ms

sm_img_0644.jpg

sm_img_0644.jpg

2763 ms

pic_080.jpg

pic_080.jpg

2409 ms

Roboto.woff

Roboto.woff

2381 ms

Robotomedium.woff

Robotomedium.woff

1589 ms

Robotolight.woff

Robotolight.woff

1507 ms

Robotothin.woff

Robotothin.woff

1351 ms

Robotobold.woff

Robotobold.woff

1375 ms

Robotoblack.woff

Robotoblack.woff

1371 ms

Robotocondensedbold.woff

Robotocondensedbold.woff

1361 ms

Robotocondensed.woff

Robotocondensed.woff

1266 ms

Robotocondensedlight.woff

Robotocondensedlight.woff

1256 ms

pic_092.jpg

pic_092.jpg

1312 ms

search-icon-white.svg

search-icon-white.svg

1244 ms

watch.js

watch.js

118 ms

featured-image.jpg

featured-image.jpg

1002 ms

sidebar-bg.png

sidebar-bg.png

1064 ms

up-button-80.png

up-button-80.png

1082 ms

left-arrow.png

left-arrow.png

1081 ms

right-arrow.png

right-arrow.png

1127 ms

Accessibility Review

psi.nsc.ru accessibility score

98

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

Best Practices

psi.nsc.ru best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

psi.nsc.ru SEO score

82

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

Mobile Friendly

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/).

Impact

Issue

High

Document doesn't use 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 Psi.nsc.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 Psi.nsc.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

psi.nsc.ru

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