Access tdwi.org. Data and Analytics Education and Research

name

value

score

weighting

FCP (First Contentful Paint)

Value9.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value13.9 s

0/100

25%

SI (Speed Index)

Value13.6 s

2/100

10%

TBT (Total Blocking Time)

Value1,100 ms

23/100

30%

CLS (Cumulative Layout Shift)

Value0.035

100/100

15%

TTI (Time to Interactive)

Value20.3 s

2/100

10%

tdwi.org

396 ms

Home.aspx

202 ms

style.css

142 ms

assets.css

277 ms

sidenav.css

372 ms

Our browser made a total of 102 requests to load all elements on the main page. We found that 56% of them (57 requests) were addressed to the original Tdwi.org, 13% (13 requests) were made to Ad.doubleclick.net and 7% (7 requests) were made to Rtp-static.marketo.com. The less responsive or slowest element that took the longest time to load (922 ms) belongs to the original domain Tdwi.org.

Content Size

1.9 MB

After Optimization

1.1 MB

In fact, the total size of Tdwi.org main page is 1.9 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. 55% of websites need less resources to load. Images take 930.0 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 91.8 kB

Original 112.4 kB
After minification 92.7 kB
After compression 20.7 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 19.7 kB, which is 18% 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 91.8 kB or 82% of the original size.

Image Optimization

-5%

Potential reduce by 49.1 kB

Original 930.0 kB
After minification 880.9 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. TDWI images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 482.6 kB

Original 703.4 kB
After minification 612.4 kB
After compression 220.8 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 482.6 kB or 69% of the original size.

CSS Optimization

-84%

Potential reduce by 120.7 kB

Original 143.6 kB
After minification 118.7 kB
After compression 22.9 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. Tdwi.org needs all CSS files to be minified and compressed as it can save up to 120.7 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 99 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TDWI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 41 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Tdwi.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 Tdwi.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

tdwi.org

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Data and Analytics Education and Research | TDWI

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

tdwi.org

Home.aspx

style.css

assets.css

sidenav.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

tdwi.org

Home.aspx

style.css

assets.css

sidenav.css

css

html5.js

jquery.min.js

jquery-ui.js

jquery.innerfade.js

jquery.functions.js

jquery-migrate-1.2.1.min.js

home.css

jsapi

ga_social_tracking.js

WebResource.axd

ScriptResource.axd

ScriptResource.axd

featherlight.min.css

featherlight.min.js

jssor.js

jssor.slider.js

hamburglar.css

jquery.meerkat.1.3.js

conversion.js

rtp.js

munchkin.js

analytics.js

fbds.js

gtm.js

tablet.css

global_tdwi.png

global_tdwievents.png

global_upside.png

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TDWI_Onsite_Bro_0115_F_TN.jpg

TDWI_Video_Thumb.jpg

russom_philip_thumb.jpg

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halper_fern_thumb.jpg

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