Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

oncostop.su

Официальный сайт центра лучевой терапии «ОнкоСтоп» - лечение рака и онкологических новообразований на аппарате Кибер-Нож

Page Load Speed

18.2 sec in total

First Response

1.5 sec

Resources Loaded

16.2 sec

Page Rendered

508 ms

oncostop.su screenshot

About Website

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

Центр лучевой терапии «ОнкоСтоп» в Москве предлагает свои услуги по диагностике и лечению раковых заболеваний. В работе центра радиохирургии используется высокотехнологичная система «Кибер-Нож» ☎ +7(4...

Visit oncostop.su

Key Findings

We analyzed Oncostop.su page load time and found that the first response time was 1.5 sec and then it took 16.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

oncostop.su performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

10/100

10%

LCP (Largest Contentful Paint)

Value16.6 s

0/100

25%

SI (Speed Index)

Value11.9 s

4/100

10%

TBT (Total Blocking Time)

Value2,980 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value18.4 s

3/100

10%

Network Requests Diagram

oncostop.su

1509 ms

style.portal.mode.1.css

335 ms

mootools-core.js

2654 ms

core.js

529 ms

caption.js

351 ms

Our browser made a total of 103 requests to load all elements on the main page. We found that 75% of them (77 requests) were addressed to the original Oncostop.su, 9% (9 requests) were made to Api-maps.yandex.ru and 4% (4 requests) were made to Chaser.ru. The less responsive or slowest element that took the longest time to load (10.2 sec) belongs to the original domain Oncostop.su.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (50%)

Content Size

2.5 MB

After Optimization

1.3 MB

In fact, the total size of Oncostop.su main page is 2.5 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. 45% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 281.3 kB

  • Original 341.9 kB
  • After minification 339.9 kB
  • After compression 60.6 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 281.3 kB or 82% of the original size.

Image Optimization

-15%

Potential reduce by 156.2 kB

  • Original 1.1 MB
  • After minification 907.2 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. Obviously, Oncostop needs image optimization as it can save up to 156.2 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 635.7 kB

  • Original 920.0 kB
  • After minification 896.8 kB
  • After compression 284.4 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 635.7 kB or 69% of the original size.

CSS Optimization

-85%

Potential reduce by 189.3 kB

  • Original 222.5 kB
  • After minification 207.0 kB
  • After compression 33.2 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. Oncostop.su needs all CSS files to be minified and compressed as it can save up to 189.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 54 (56%)

Requests Now

96

After Optimization

42

The browser has sent 96 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oncostop. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

oncostop.su accessibility score

82

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

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.

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

oncostop.su best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

oncostop.su SEO score

88

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 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 Oncostop.su 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 Oncostop.su 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 Oncostop. 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: