Tools & Wizards About Us
bool.com screenshot

Report Summary

  • 73

    Performance

    Renders faster than
    82% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

bool.com

Bool | Comprehensive Computer Science Platform for College

Page Load Speed

799 ms in total

First Response

74 ms

Resources Loaded

666 ms

Page Rendered

59 ms

bool.com screenshot

About Website

Welcome to bool.com homepage info - get ready to check Bool best content right away, or after learning these important things about bool.com

Bool is a comprehensive platform for teaching computer science in colleges, community colleges and for individual learners.

Visit bool.com

Key Findings

We analyzed Bool.com page load time and found that the first response time was 74 ms and then it took 725 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

bool.com performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

72/100

25%

SI (Speed Index)

Value3.6 s

87/100

10%

TBT (Total Blocking Time)

Value360 ms

72/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value10.8 s

21/100

10%

Network Requests Diagram

www.bool.com

74 ms

minified.js

46 ms

focus-within-polyfill.js

42 ms

polyfill.min.js

85 ms

thunderbolt-commons.7700cd07.bundle.min.js

75 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Bool.com, 40% (17 requests) were made to Static.parastorage.com and 26% (11 requests) were made to Static.wixstatic.com. The less responsive or slowest element that took the longest time to load (351 ms) relates to the external source Static.wixstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 270.6 kB (43%)

Content Size

624.5 kB

After Optimization

353.9 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Bool.com main page is 624.5 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Javascripts take 303.5 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 215.5 kB

  • Original 286.9 kB
  • After minification 285.3 kB
  • After compression 71.4 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 215.5 kB or 75% of the original size.

Image Optimization

-20%

Potential reduce by 7.0 kB

  • Original 34.1 kB
  • After minification 27.1 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. Obviously, Bool needs image optimization as it can save up to 7.0 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-16%

Potential reduce by 48.1 kB

  • Original 303.5 kB
  • After minification 303.5 kB
  • After compression 255.4 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 48.1 kB or 16% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (38%)

Requests Now

26

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bool. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.bool.com

www.bool.com

74 ms

minified.js

minified.js

46 ms

focus-within-polyfill.js

focus-within-polyfill.js

42 ms

polyfill.min.js

polyfill.min.js

85 ms

thunderbolt-commons.7700cd07.bundle.min.js

thunderbolt-commons.7700cd07.bundle.min.js

75 ms

main.16c08821.bundle.min.js

main.16c08821.bundle.min.js

126 ms

main.renderer.1d21f023.bundle.min.js

main.renderer.1d21f023.bundle.min.js

33 ms

lodash.min.js

lodash.min.js

129 ms

react.production.min.js

react.production.min.js

127 ms

react-dom.production.min.js

react-dom.production.min.js

129 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

128 ms

2626fe_487274889fd9475fa79132619e5e7b39~mv2.png

2626fe_487274889fd9475fa79132619e5e7b39~mv2.png

351 ms

bundle.min.js

bundle.min.js

66 ms

2626fe_2768ff7fbebf43539ad5ddc17f1449fe~mv2.png

2626fe_2768ff7fbebf43539ad5ddc17f1449fe~mv2.png

271 ms

2626fe_2768ff7fbebf43539ad5ddc17f1449fe~mv2.png

2626fe_2768ff7fbebf43539ad5ddc17f1449fe~mv2.png

330 ms

1e47b2_5933ee74ead1423ea0746d23c30f1b4e~mv2.png

1e47b2_5933ee74ead1423ea0746d23c30f1b4e~mv2.png

48 ms

84770f_f8c65cc524cc4a1f80630d3aacf55ee6~mv2.png

84770f_f8c65cc524cc4a1f80630d3aacf55ee6~mv2.png

50 ms

84770f_1a1beda5f9474ac1838dd8846edd7eb1~mv2.png

84770f_1a1beda5f9474ac1838dd8846edd7eb1~mv2.png

50 ms

2626fe_e47190233f044065a2ab402617c5d42a~mv2.png

2626fe_e47190233f044065a2ab402617c5d42a~mv2.png

52 ms

2626fe_a3ecd0058ef145f59ec52e29235b522c~mv2.png

2626fe_a3ecd0058ef145f59ec52e29235b522c~mv2.png

53 ms

2626fe_f3221f6b237245be96e2b20cb140bdd0~mv2.png

2626fe_f3221f6b237245be96e2b20cb140bdd0~mv2.png

52 ms

84770f_f7a075b82a84470297070fc65e2508df~mv2.png

84770f_f7a075b82a84470297070fc65e2508df~mv2.png

54 ms

84770f_0e11b135814f45afa0af5b4946fc9928~mv2.png

84770f_0e11b135814f45afa0af5b4946fc9928~mv2.png

54 ms

135 ms

131 ms

130 ms

123 ms

125 ms

124 ms

163 ms

163 ms

163 ms

158 ms

157 ms

cca525a8-ad89-43ae-aced-bcb49fb271dc.woff

cca525a8-ad89-43ae-aced-bcb49fb271dc.woff

16 ms

e2b9cbeb-fa8e-41cd-8a6a-46044b29ba52.woff

e2b9cbeb-fa8e-41cd-8a6a-46044b29ba52.woff

16 ms

4021a3b9-f782-438b-aeb4-c008109a8b64.woff

4021a3b9-f782-438b-aeb4-c008109a8b64.woff

16 ms

b56b944e-bbe0-4450-a241-de2125d3e682.woff

b56b944e-bbe0-4450-a241-de2125d3e682.woff

16 ms

6f8d1983-4d34-4fa4-9110-988f6c495757.woff

6f8d1983-4d34-4fa4-9110-988f6c495757.woff

11 ms

deprecation-en.v5.html

deprecation-en.v5.html

7 ms

bolt-performance

bolt-performance

35 ms

deprecation-style.v5.css

deprecation-style.v5.css

11 ms

right-arrow.svg

right-arrow.svg

10 ms

Accessibility Review

bool.com accessibility score

91

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

Links do not have a discernible name

Best Practices

bool.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

Page has valid source maps

SEO Factors

bool.com SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Bool.com 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 Bool.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

bool.com

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