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codna.org screenshot

Report Summary

  • 0

    Performance

  • 33

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 69

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

codna.org

Ofer Arazy

Page Load Speed

3.9 sec in total

First Response

826 ms

Resources Loaded

3 sec

Page Rendered

103 ms

codna.org screenshot

About Website

Click here to check amazing Codna content for United States. Otherwise, check out these important facts you probably never knew about codna.org

Description

Visit codna.org

Key Findings

We analyzed Codna.org page load time and found that the first response time was 826 ms and then it took 3.1 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

codna.org performance score

0

Network Requests Diagram

www.codna.org

826 ms

344 ms

jquery-ui-1.8.21.custom.css

168 ms

interactive2.css

330 ms

jquery-1.7.2.min.js

500 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Codna.org, 2% (1 request) were made to Codna.org. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source .

Page Optimization Overview & Recommendations

Page size can be reduced by 585.6 kB (76%)

Content Size

772.0 kB

After Optimization

186.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Codna.org main page is 772.0 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. 40% of websites need less resources to load. Javascripts take 721.0 kB which makes up the majority of the site volume.

HTML Optimization

-47%

Potential reduce by 122 B

  • Original 257 B
  • After minification 166 B
  • After compression 135 B

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 91 B, which is 35% 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 122 B or 47% of the original size.

Image Optimization

-16%

Potential reduce by 196 B

  • Original 1.2 kB
  • After minification 1.0 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, Codna needs image optimization as it can save up to 196 B or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-75%

Potential reduce by 544.0 kB

  • Original 721.0 kB
  • After minification 592.8 kB
  • After compression 177.1 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 544.0 kB or 75% of the original size.

CSS Optimization

-84%

Potential reduce by 41.3 kB

  • Original 49.5 kB
  • After minification 40.7 kB
  • After compression 8.1 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. Codna.org needs all CSS files to be minified and compressed as it can save up to 41.3 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (74%)

Requests Now

42

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Codna. 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 as a result speed up the page load time.

Network Requests Diagram

www.codna.org

www.codna.org

826 ms

344 ms

jquery-ui-1.8.21.custom.css

jquery-ui-1.8.21.custom.css

168 ms

interactive2.css

interactive2.css

330 ms

jquery-1.7.2.min.js

jquery-1.7.2.min.js

500 ms

jquery-ui-1.8.20.custom.min.js

jquery-ui-1.8.20.custom.min.js

667 ms

scrollbarWidth.min.js

scrollbarWidth.min.js

346 ms

d3.v3.min.js

d3.v3.min.js

661 ms

sorttable.js

sorttable.js

346 ms

jquery.svg.js

jquery.svg.js

497 ms

jquery.svgdom.js

jquery.svgdom.js

496 ms

underscore.min.js

underscore.min.js

510 ms

backbone.js

backbone.js

827 ms

backbone.subviews.js

backbone.subviews.js

658 ms

NonUniqueCollection.js

NonUniqueCollection.js

662 ms

User.js

User.js

661 ms

UserSet.js

UserSet.js

823 ms

TopTab.js

TopTab.js

823 ms

Article.js

Article.js

830 ms

ArticleSet.js

ArticleSet.js

831 ms

Classification.js

Classification.js

831 ms

WikiViz.js

WikiViz.js

986 ms

Sentences.js

Sentences.js

988 ms

DialogView.js

DialogView.js

988 ms

TopTabView.js

TopTabView.js

989 ms

NewArticleView.js

NewArticleView.js

991 ms

WikiVizView.js

WikiVizView.js

994 ms

ArticleView.js

ArticleView.js

1149 ms

UserView.js

UserView.js

1149 ms

ArticleInfoView.js

ArticleInfoView.js

1151 ms

UserInfoView.js

UserInfoView.js

1151 ms

ToolbarView.js

ToolbarView.js

1152 ms

NavCtlView.js

NavCtlView.js

1158 ms

SentencesView.js

SentencesView.js

1312 ms

helpers.js

helpers.js

1311 ms

router.js

router.js

1313 ms

dbquery.php

dbquery.php

169 ms

dbquery.php

dbquery.php

176 ms

dbquery.php

dbquery.php

172 ms

dbquery.php

dbquery.php

174 ms

green_arrow.png

green_arrow.png

170 ms

big_throbber.gif

big_throbber.gif

288 ms

ui-bg_glass_75_ffffff_1x400.png

ui-bg_glass_75_ffffff_1x400.png

290 ms

Accessibility Review

codna.org accessibility score

33

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

<frame> or <iframe> elements do not have a title

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

codna.org best practices score

69

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

codna.org SEO score

67

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Codna.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 Codna.org main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

codna.org

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