Report Summary

  • 85

    Performance

    Renders faster than
    88% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

codingcraft.ru

Обучение программированию, информационным технологиям и созданию интернет сайтов :: Школа программирования Coding Craft

Page Load Speed

1.8 sec in total

First Response

537 ms

Resources Loaded

1.1 sec

Page Rendered

72 ms

codingcraft.ru screenshot

About Website

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

Ресурс о программировании для начинающих. На сайте представлены материалы, которые помогут новичкам освоить основы программирования, получить навыки работы с базой данных, изучить приемы создания сайт...

Visit codingcraft.ru

Key Findings

We analyzed Codingcraft.ru page load time and found that the first response time was 537 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

codingcraft.ru performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value3.4 s

66/100

25%

SI (Speed Index)

Value3.7 s

85/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value4.0 s

87/100

10%

Network Requests Diagram

codingcraft.ru

537 ms

bootstrap.min.css

243 ms

plugins.css

349 ms

style.css

232 ms

owl.carousel.min.css

239 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 70% of them (14 requests) were addressed to the original Codingcraft.ru, 25% (5 requests) were made to Fonts.gstatic.com and 5% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (537 ms) belongs to the original domain Codingcraft.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 13.7 kB (8%)

Content Size

161.6 kB

After Optimization

147.9 kB

In fact, the total size of Codingcraft.ru main page is 161.6 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. 35% of websites need less resources to load. Javascripts take 87.1 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 10.6 kB

  • Original 12.5 kB
  • After minification 6.6 kB
  • After compression 1.9 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 5.9 kB, which is 47% 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 10.6 kB or 85% of the original size.

Image Optimization

-11%

Potential reduce by 374 B

  • Original 3.4 kB
  • After minification 3.0 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. Obviously, Coding Craft needs image optimization as it can save up to 374 B or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 1.1 kB

  • Original 87.1 kB
  • After minification 87.1 kB
  • After compression 86.0 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

-3%

Potential reduce by 1.6 kB

  • Original 58.6 kB
  • After minification 58.6 kB
  • After compression 57.0 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. Codingcraft.ru has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 10 (77%)

Requests Now

13

After Optimization

3

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coding Craft. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

codingcraft.ru accessibility score

86

Accessibility Issues

ARIA

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.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

Links do not have a discernible name

Best Practices

codingcraft.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

codingcraft.ru SEO score

92

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Codingcraft.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it does not match the claimed English language. Our system also found out that Codingcraft.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 Coding Craft. 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: