Tools & Wizards About Us

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

kostyuk.ru

Костюк Игорь Петрович - официальный личный сайт врача хирурга онколога

Page Load Speed

3.6 sec in total

First Response

522 ms

Resources Loaded

2.8 sec

Page Rendered

199 ms

About Website

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

Костюк Игорь Петрович - онколог, хирург, онкоуролог, онкогинеколог, бариатрический хирург, д. м. н. Основные специализации: хирургическая онкология, коррекция ожирения (бариатрическая хирургия), рекон...

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Key Findings

We analyzed Kostyuk.ru page load time and found that the first response time was 522 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

kostyuk.ru performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value21.1 s

0/100

25%

SI (Speed Index)

Value15.8 s

0/100

10%

TBT (Total Blocking Time)

Value12,470 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.138

79/100

15%

TTI (Time to Interactive)

Value46.9 s

0/100

10%

Network Requests Diagram

kostyuk.ru

522 ms

www.kostyuk.ru

554 ms

reset.css

136 ms

style.css

270 ms

style_a4.css

275 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 36% of them (27 requests) were addressed to the original Kostyuk.ru, 17% (13 requests) were made to Vk.com and 8% (6 requests) were made to Site.yandex.net. The less responsive or slowest element that took the longest time to load (554 ms) belongs to the original domain Kostyuk.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 350.0 kB (41%)

Content Size

847.6 kB

After Optimization

497.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kostyuk.ru main page is 847.6 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. 55% of websites need less resources to load. Javascripts take 352.0 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 34.2 kB

  • Original 44.4 kB
  • After minification 39.3 kB
  • After compression 10.3 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. This page needs HTML code to be minified as it can gain 5.1 kB, which is 12% 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 34.2 kB or 77% of the original size.

Image Optimization

-6%

Potential reduce by 22.0 kB

  • Original 348.0 kB
  • After minification 326.0 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. Kostyuk images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 209.6 kB

  • Original 352.0 kB
  • After minification 286.2 kB
  • After compression 142.4 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 209.6 kB or 60% of the original size.

CSS Optimization

-82%

Potential reduce by 84.2 kB

  • Original 103.2 kB
  • After minification 85.9 kB
  • After compression 19.0 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. Kostyuk.ru needs all CSS files to be minified and compressed as it can save up to 84.2 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (59%)

Requests Now

74

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kostyuk. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

kostyuk.ru accessibility score

67

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.

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

<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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

kostyuk.ru best practices score

75

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

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

kostyuk.ru SEO score

90

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kostyuk.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 Kostyuk.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 data is detected on the main page of Kostyuk. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: