Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

d3con.org

d3con - the future of digital advertising

Page Load Speed

6.9 sec in total

First Response

542 ms

Resources Loaded

5.5 sec

Page Rendered

837 ms

d3con.org screenshot

About Website

Welcome to d3con.org homepage info - get ready to check D 3 Con best content for Israel right away, or after learning these important things about d3con.org

With more than 2000 visitors the d3con is Germany's largest event about the future of Display Advertising

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Key Findings

We analyzed D3con.org page load time and found that the first response time was 542 ms and then it took 6.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

d3con.org performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

53/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value1,450 ms

15/100

30%

CLS (Cumulative Layout Shift)

Value0.481

17/100

15%

TTI (Time to Interactive)

Value12.7 s

14/100

10%

Network Requests Diagram

d3con.org

542 ms

screen.css

202 ms

css

27 ms

jquery.min.js

55 ms

jquery.jpanelmenu.min.js

199 ms

Our browser made a total of 165 requests to load all elements on the main page. We found that 64% of them (106 requests) were addressed to the original D3con.org, 12% (20 requests) were made to Static.xx.fbcdn.net and 8% (14 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain D3con.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 927.6 kB (32%)

Content Size

2.9 MB

After Optimization

2.0 MB

In fact, the total size of D3con.org main page is 2.9 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 48.2 kB

  • Original 59.0 kB
  • After minification 42.3 kB
  • After compression 10.8 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 16.6 kB, which is 28% 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 48.2 kB or 82% of the original size.

Image Optimization

-21%

Potential reduce by 485.8 kB

  • Original 2.3 MB
  • After minification 1.8 MB

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, D 3 Con needs image optimization as it can save up to 485.8 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-57%

Potential reduce by 157.0 kB

  • Original 276.0 kB
  • After minification 267.0 kB
  • After compression 119.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 157.0 kB or 57% of the original size.

CSS Optimization

-83%

Potential reduce by 236.7 kB

  • Original 285.2 kB
  • After minification 284.7 kB
  • After compression 48.5 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. D3con.org needs all CSS files to be minified and compressed as it can save up to 236.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 36 (23%)

Requests Now

157

After Optimization

121

The browser has sent 157 CSS, Javascripts, AJAX and image requests in order to completely render the main page of D 3 Con. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

d3con.org accessibility score

84

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

Image elements do not have [alt] attributes

Best Practices

d3con.org best practices score

83

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

Page has valid source maps

SEO Factors

d3con.org SEO score

84

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

Links do not have descriptive text

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise D3con.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that D3con.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

Open Graph data is detected on the main page of D 3 Con. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: