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Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

cppquiz.org

CppQuiz.org - Question #120

Page Load Speed

936 ms in total

First Response

123 ms

Resources Loaded

674 ms

Page Rendered

139 ms

cppquiz.org screenshot

About Website

Click here to check amazing Cpp Quiz content for Russia. Otherwise, check out these important facts you probably never knew about cppquiz.org

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Key Findings

We analyzed Cppquiz.org page load time and found that the first response time was 123 ms and then it took 813 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

cppquiz.org performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

65/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value140 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.1 s

87/100

10%

Network Requests Diagram

131

123 ms

sh_main.js

82 ms

sh_cpp.js

162 ms

jquery-1.9.1.min.js

5 ms

jquery-ui.js

13 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 46% of them (6 requests) were addressed to the original Cppquiz.org, 23% (3 requests) were made to Platform.twitter.com and 15% (2 requests) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (204 ms) belongs to the original domain Cppquiz.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 26.7 kB (52%)

Content Size

51.4 kB

After Optimization

24.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cppquiz.org main page is 51.4 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. 30% of websites need less resources to load. Javascripts take 39.1 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 4.7 kB

  • Original 7.3 kB
  • After minification 7.2 kB
  • After compression 2.6 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 4.7 kB or 64% of the original size.

Image Optimization

-26%

Potential reduce by 114 B

  • Original 440 B
  • After minification 326 B

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, Cpp Quiz needs image optimization as it can save up to 114 B or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-47%

Potential reduce by 18.2 kB

  • Original 39.1 kB
  • After minification 29.5 kB
  • After compression 20.8 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 18.2 kB or 47% of the original size.

CSS Optimization

-80%

Potential reduce by 3.6 kB

  • Original 4.6 kB
  • After minification 3.5 kB
  • After compression 924 B

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. Cppquiz.org needs all CSS files to be minified and compressed as it can save up to 3.6 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (50%)

Requests Now

12

After Optimization

6

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cpp Quiz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

131

131

123 ms

sh_main.js

sh_main.js

82 ms

sh_cpp.js

sh_cpp.js

162 ms

jquery-1.9.1.min.js

jquery-1.9.1.min.js

5 ms

jquery-ui.js

jquery-ui.js

13 ms

sh_nedit.css

sh_nedit.css

204 ms

quiz.css

quiz.css

160 ms

widgets.js

widgets.js

12 ms

ga.js

ga.js

60 ms

level-2.png

level-2.png

85 ms

button.0308b81ff1714e446f674b5b9793f2cd.js

button.0308b81ff1714e446f674b5b9793f2cd.js

61 ms

__utm.gif

__utm.gif

26 ms

follow_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

follow_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

28 ms

Accessibility Review

cppquiz.org accessibility score

87

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Form elements do not have associated labels

Best Practices

cppquiz.org 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

cppquiz.org SEO score

69

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cppquiz.org can be misinterpreted by Google and other search engines. Our service has detected that English 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 Cppquiz.org 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

cppquiz.org

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