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tedxdonauinsel.at screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

tedxdonauinsel.at

TEDx Donauinsel | TEDx Donauinsel | Ideas worth spreading in Vienna

Page Load Speed

9.4 sec in total

First Response

413 ms

Resources Loaded

8.3 sec

Page Rendered

666 ms

tedxdonauinsel.at screenshot

About Website

Click here to check amazing TEDx Donauinsel content. Otherwise, check out these important facts you probably never knew about tedxdonauinsel.at

The TEDxDonauinsel event, in the spirit of "Ideas worth spreading" is for Austria's curious, adventurers & innovators to inspire, connect & impact.

Visit tedxdonauinsel.at

Key Findings

We analyzed Tedxdonauinsel.at page load time and found that the first response time was 413 ms and then it took 8.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

tedxdonauinsel.at performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.4 s

1/100

10%

LCP (Largest Contentful Paint)

Value29.7 s

0/100

25%

SI (Speed Index)

Value25.6 s

0/100

10%

TBT (Total Blocking Time)

Value19,160 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value36.4 s

0/100

10%

Network Requests Diagram

tedxdonauinsel.at

413 ms

tedxdonauinsel.at

3567 ms

wp-emoji-release.min.js

325 ms

layerslider.css

320 ms

css

30 ms

Our browser made a total of 251 requests to load all elements on the main page. We found that 69% of them (173 requests) were addressed to the original Tedxdonauinsel.at, 12% (30 requests) were made to I.ytimg.com and 5% (13 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (3.6 sec) belongs to the original domain Tedxdonauinsel.at.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 MB (14%)

Content Size

10.5 MB

After Optimization

9.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tedxdonauinsel.at main page is 10.5 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. Only a small number of websites need less resources to load. Images take 9.1 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 132.1 kB

  • Original 156.3 kB
  • After minification 152.5 kB
  • After compression 24.1 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 132.1 kB or 85% of the original size.

Image Optimization

-15%

Potential reduce by 1.4 MB

  • Original 9.1 MB
  • After minification 7.7 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, TEDx Donauinsel needs image optimization as it can save up to 1.4 MB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 14.9 kB

  • Original 983.6 kB
  • After minification 983.3 kB
  • After compression 968.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-3%

Potential reduce by 10.8 kB

  • Original 312.0 kB
  • After minification 311.2 kB
  • After compression 301.2 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. Tedxdonauinsel.at has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 146 (61%)

Requests Now

241

After Optimization

95

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 241 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TEDx Donauinsel. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 116 to 1 for JavaScripts and from 27 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

tedxdonauinsel.at

tedxdonauinsel.at

413 ms

tedxdonauinsel.at

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3567 ms

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Accessibility Review

tedxdonauinsel.at accessibility score

83

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

Form elements do not have associated labels

High

Links do not have a discernible name

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

tedxdonauinsel.at 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

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

tedxdonauinsel.at SEO score

100

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tedxdonauinsel.at 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 Tedxdonauinsel.at 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

tedxdonauinsel.at

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