Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 62

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

niioncologii.ru

НМИЦ онкологии им. Н.Н. Петрова - онкологический центр в Песочном (Санкт-Петербург)

Page Load Speed

25.9 sec in total

First Response

2.2 sec

Resources Loaded

21.5 sec

Page Rendered

2.3 sec

niioncologii.ru screenshot

About Website

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

Официальный сайт крупнейшего федерального онкологического центра в России. Новости, методы лечения и диагностики, тарифы на услуги, сведения о научной и образовательной деятельности. Контакты.

Visit niioncologii.ru

Key Findings

We analyzed Niioncologii.ru page load time and found that the first response time was 2.2 sec and then it took 23.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

niioncologii.ru performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value12.2 s

0/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value6,980 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value21.9 s

1/100

10%

Network Requests Diagram

niioncologii.ru

2163 ms

system.base.css

519 ms

system.menus.css

378 ms

system.messages.css

380 ms

system.theme.css

383 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 94% of them (106 requests) were addressed to the original Niioncologii.ru, 2% (2 requests) were made to S020.radikal.ru and 2% (2 requests) were made to I003.radikal.ru. The less responsive or slowest element that took the longest time to load (15.8 sec) belongs to the original domain Niioncologii.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 405.6 kB (21%)

Content Size

1.9 MB

After Optimization

1.5 MB

In fact, the total size of Niioncologii.ru main page is 1.9 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. 30% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 215.8 kB

  • Original 244.0 kB
  • After minification 205.5 kB
  • After compression 28.2 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 38.5 kB, which is 16% 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 215.8 kB or 88% of the original size.

Image Optimization

-4%

Potential reduce by 56.4 kB

  • Original 1.5 MB
  • After minification 1.5 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. Niioncologii images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 90.9 kB

  • Original 130.8 kB
  • After minification 113.4 kB
  • After compression 39.9 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 90.9 kB or 70% of the original size.

CSS Optimization

-79%

Potential reduce by 42.5 kB

  • Original 53.8 kB
  • After minification 41.9 kB
  • After compression 11.3 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. Niioncologii.ru needs all CSS files to be minified and compressed as it can save up to 42.5 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (28%)

Requests Now

109

After Optimization

78

The browser has sent 109 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Niioncologii. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

niioncologii.ru accessibility score

62

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

niioncologii.ru best practices score

67

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

Missing source maps for large first-party JavaScript

SEO Factors

niioncologii.ru SEO score

85

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

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

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 uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    RU

  • Encoding

    UTF-8

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

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