Tools & Wizards About Us
cboe.com screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

cboe.com

Cboe Global Markets

Page Load Speed

2.1 sec in total

First Response

63 ms

Resources Loaded

1.8 sec

Page Rendered

237 ms

cboe.com screenshot

About Website

Click here to check amazing Cboe content for United States. Otherwise, check out these important facts you probably never knew about cboe.com

Cboe Global Markets, a leading provider of market infrastructure and tradable products, delivers cutting-edge trading, clearing and investment solutions to market participants around the world.

Visit cboe.com

Key Findings

We analyzed Cboe.com page load time and found that the first response time was 63 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

cboe.com performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value10.9 s

0/100

25%

SI (Speed Index)

Value12.6 s

3/100

10%

TBT (Total Blocking Time)

Value2,920 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.165

72/100

15%

TTI (Time to Interactive)

Value21.5 s

1/100

10%

Network Requests Diagram

cboe.com

63 ms

www.cboe.com

232 ms

combinedCSS

136 ms

ads.js

49 ms

addthis_widget.js

12 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 29% of them (26 requests) were addressed to the original Cboe.com, 12% (11 requests) were made to S0.2mdn.net and 4% (4 requests) were made to V4.moatads.com. The less responsive or slowest element that took the longest time to load (626 ms) belongs to the original domain Cboe.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.0 MB (50%)

Content Size

4.1 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cboe.com main page is 4.1 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. Javascripts take 2.1 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 556.5 kB

  • Original 642.3 kB
  • After minification 627.1 kB
  • After compression 85.9 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 556.5 kB or 87% of the original size.

Image Optimization

-5%

Potential reduce by 63.6 kB

  • Original 1.3 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. Cboe images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 1.4 MB

  • Original 2.1 MB
  • After minification 2.1 MB
  • After compression 694.6 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 1.4 MB or 67% of the original size.

CSS Optimization

-89%

Potential reduce by 13.8 kB

  • Original 15.5 kB
  • After minification 12.7 kB
  • After compression 1.7 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. Cboe.com needs all CSS files to be minified and compressed as it can save up to 13.8 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 54 (63%)

Requests Now

86

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 86 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cboe. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

cboe.com

cboe.com

63 ms

www.cboe.com

www.cboe.com

232 ms

combinedCSS

combinedCSS

136 ms

ads.js

ads.js

49 ms

addthis_widget.js

addthis_widget.js

12 ms

snapshotchart.js

snapshotchart.js

28 ms

moatad.js

moatad.js

162 ms

combinedJS

combinedJS

102 ms

rssHomeNews.js

rssHomeNews.js

97 ms

gpt.js

gpt.js

139 ms

gtm.js

gtm.js

139 ms

NAV-150x150.jpg

NAV-150x150.jpg

89 ms

CBOE-sprite.jpg

CBOE-sprite.jpg

87 ms

canvas.png

canvas.png

164 ms

social.jpg

social.jpg

84 ms

blank.gif

blank.gif

65 ms

cboe-toi-sm-rgb.png

cboe-toi-sm-rgb.png

162 ms

pixel.gif

pixel.gif

86 ms

pubads_impl_81.js

pubads_impl_81.js

73 ms

conversion_async.js

conversion_async.js

54 ms

fbevents.js

fbevents.js

544 ms

oct.js

oct.js

84 ms

;sz=1x1;ord=5660138148814439000

;sz=1x1;ord=5660138148814439000

47 ms

trackpad-scroll-emulator.css

trackpad-scroll-emulator.css

52 ms

header-rotator-new7.jpg

header-rotator-new7.jpg

497 ms

header-rotator-new5.jpg

header-rotator-new5.jpg

555 ms

ftse-russ-hero-2.jpg

ftse-russ-hero-2.jpg

511 ms

CBOE_Welcome_pagebar_720x305.jpg

CBOE_Welcome_pagebar_720x305.jpg

626 ms

powerful-outcomes-hero-1.jpg

powerful-outcomes-hero-1.jpg

503 ms

firstevent

firstevent

36 ms

7-1x1.JPG

7-1x1.JPG

528 ms

7-1x1.JPG

7-1x1.JPG

527 ms

14-1x1.gif

14-1x1.gif

551 ms

7-1x1.JPG

7-1x1.JPG

548 ms

14-1x1.gif

14-1x1.gif

550 ms

pixel.gif

pixel.gif

29 ms

scrolloverflow.js

scrolloverflow.js

484 ms

jquery.trackpad-scroll-emulator.js

jquery.trackpad-scroll-emulator.js

513 ms

hero.js

hero.js

535 ms

snapshot.js

snapshot.js

536 ms

tv.js

tv.js

535 ms

container.html

container.html

477 ms

;sz=1x1;ord=5660138148814439000

;sz=1x1;ord=5660138148814439000

458 ms

pixel.gif

pixel.gif

459 ms

adsct

adsct

578 ms

adsct

adsct

517 ms

ActivityServer.bs

ActivityServer.bs

503 ms

300lo.json

300lo.json

520 ms

CBOETVSearch.aspx

CBOETVSearch.aspx

340 ms

sh.7c7179124ea24ac6ba46caac.html

sh.7c7179124ea24ac6ba46caac.html

45 ms

cboe.jpg

cboe.jpg

104 ms

feature-320x80.jpg

feature-320x80.jpg

116 ms

125 ms

pixel.gif

pixel.gif

48 ms

embed.js

embed.js

53 ms

61 ms

0Z_.120x66.jpeg

0Z_.120x66.jpeg

22 ms

layers.3643cb2e25fb91c29386.js

layers.3643cb2e25fb91c29386.js

35 ms

pixel

pixel

20 ms

pixel

pixel

22 ms

91 ms

match-result

match-result

69 ms

match-result

match-result

65 ms

ads

ads

87 ms

analytics.js

analytics.js

19 ms

pd.js

pd.js

30 ms

collect

collect

12 ms

analytics

analytics

418 ms

15788208957977491681

15788208957977491681

44 ms

ads

ads

53 ms

osd.js

osd.js

12 ms

modernizr_2.8.3_ec185bb44fe5e6bf7455d6e8ef37ed0e_no-classes.js

modernizr_2.8.3_ec185bb44fe5e6bf7455d6e8ef37ed0e_no-classes.js

23 ms

event

event

22 ms

moatad.js

moatad.js

36 ms

ads

ads

72 ms

TDA_Finder_728x90.html

TDA_Finder_728x90.html

49 ms

easeljs-0.8.1.min.js

easeljs-0.8.1.min.js

66 ms

tweenjs-0.6.1.min.js

tweenjs-0.6.1.min.js

77 ms

movieclip-0.8.1.min.js

movieclip-0.8.1.min.js

79 ms

preloadjs-0.6.1.min.js

preloadjs-0.6.1.min.js

80 ms

TDA_Finder_728x90.js

TDA_Finder_728x90.js

26 ms

activityi;src=1620481;type=tdame177;cat=tapad0;u19=ba3fa0b3-dee4-11e5-95dd-005056a24035;ord=1;num=1

activityi;src=1620481;type=tdame177;cat=tapad0;u19=ba3fa0b3-dee4-11e5-95dd-005056a24035;ord=1;num=1

95 ms

activityi;src=1620481;type=tdame177;cat=drawb0;u19=21e002c031e77188db6722dc20f395e7;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;ord=1;num=1

activityi;src=1620481;type=tdame177;cat=drawb0;u19=21e002c031e77188db6722dc20f395e7;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;ord=1;num=1

96 ms

Bitmap1.png

Bitmap1.png

23 ms

Bitmap2.png

Bitmap2.png

6 ms

FlashAICB.png

FlashAICB.png

3 ms

hand.png

hand.png

3 ms

screen.jpg

screen.jpg

6 ms

pixel.gif

pixel.gif

27 ms

src=1620481;type=tdame177;cat=moatf0;u20=m=1;ord=1

src=1620481;type=tdame177;cat=moatf0;u20=m=1;ord=1

23 ms

src=1620481;type=tdame177;cat=moatf0;u20=l=1;ord=1

src=1620481;type=tdame177;cat=moatf0;u20=l=1;ord=1

18 ms

Accessibility Review

cboe.com accessibility score

89

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

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

cboe.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

cboe.com 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

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

    N/A

  • Encoding

    UTF-8

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

cboe.com

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