Tools & Wizards About Us

Report Summary

  • 5

    Performance

    Renders faster than
    21% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

wttw.org

WTTW | Chicago’s PBS station streaming News, Kids, Drama, and Documentaries

Page Load Speed

1.4 sec in total

First Response

55 ms

Resources Loaded

827 ms

Page Rendered

493 ms

About Website

Welcome to wttw.org homepage info - get ready to check WTTW best content right away, or after learning these important things about wttw.org

WTTW is Chicago’s PBS station featuring Chicago and Midwest award-winning news and journalism, local history and neighborhood tours with Geoffrey Baer, dining and restaurant reviews, popular drama and...

Visit wttw.org

Key Findings

We analyzed Wttw.org page load time and found that the first response time was 55 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

wttw.org performance score

5

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value12.8 s

0/100

25%

SI (Speed Index)

Value7.3 s

29/100

10%

TBT (Total Blocking Time)

Value5,060 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.991

2/100

15%

TTI (Time to Interactive)

Value20.0 s

2/100

10%

Network Requests Diagram

wttw.org

55 ms

www.wttw.com

94 ms

script.js

69 ms

system.base.css

46 ms

system.menus.css

50 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Wttw.org, 77% (67 requests) were made to Wttw.com and 9% (8 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (528 ms) relates to the external source Log.cookieyes.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 265.3 kB (15%)

Content Size

1.8 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Wttw.org main page is 1.8 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. 65% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 42.9 kB

  • Original 57.0 kB
  • After minification 53.7 kB
  • After compression 14.2 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 42.9 kB or 75% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 1.2 MB
  • After minification 1.2 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. WTTW images are well optimized though.

JavaScript Optimization

-43%

Potential reduce by 217.8 kB

  • Original 504.1 kB
  • After minification 502.2 kB
  • After compression 286.2 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 217.8 kB or 43% of the original size.

CSS Optimization

-14%

Potential reduce by 4.5 kB

  • Original 32.3 kB
  • After minification 32.3 kB
  • After compression 27.8 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. Wttw.org needs all CSS files to be minified and compressed as it can save up to 4.5 kB or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 52 (68%)

Requests Now

76

After Optimization

24

  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of WTTW. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 25 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

wttw.org accessibility score

88

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

wttw.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

wttw.org SEO score

82

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 Wttw.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 Wttw.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 description is not detected on the main page of WTTW. 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: