Tools & Wizards About Us
gbt.org screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    41% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

gbt.org

ETS- Great Books Education

Page Load Speed

2 sec in total

First Response

99 ms

Resources Loaded

1.4 sec

Page Rendered

534 ms

gbt.org screenshot

About Website

Visit gbt.org now to see the best up-to-date Gbt content for United States and also check out these interesting facts you probably never knew about gbt.org

Escondido Tutorial Service delivers Great Books education to homeschool families through the Internet and localy.

Visit gbt.org

Key Findings

We analyzed Gbt.org page load time and found that the first response time was 99 ms and then it took 1.9 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

gbt.org performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

92/100

10%

LCP (Largest Contentful Paint)

Value13.3 s

0/100

25%

SI (Speed Index)

Value14.4 s

1/100

10%

TBT (Total Blocking Time)

Value4,820 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.104

89/100

15%

TTI (Time to Interactive)

Value29.6 s

0/100

10%

Network Requests Diagram

gbt.org

99 ms

gbt.org

287 ms

component.numo

135 ms

bootstrap.css

91 ms

theme-index.css

70 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 78% of them (45 requests) were addressed to the original Gbt.org, 9% (5 requests) were made to Youtube.com and 7% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (695 ms) relates to the external source Youtube.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 648.4 kB (12%)

Content Size

5.6 MB

After Optimization

4.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Gbt.org main page is 5.6 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. 70% of websites need less resources to load. Images take 4.9 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 31.9 kB

  • Original 39.2 kB
  • After minification 26.1 kB
  • After compression 7.3 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 13.1 kB, which is 34% 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 31.9 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 242.4 kB

  • Original 4.9 MB
  • After minification 4.6 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. Gbt images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 11.1 kB

  • Original 205.5 kB
  • After minification 205.5 kB
  • After compression 194.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-78%

Potential reduce by 363.0 kB

  • Original 466.0 kB
  • After minification 455.1 kB
  • After compression 103.0 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. Gbt.org needs all CSS files to be minified and compressed as it can save up to 363.0 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (58%)

Requests Now

50

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Gbt. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

gbt.org

gbt.org

99 ms

gbt.org

gbt.org

287 ms

component.numo

component.numo

135 ms

bootstrap.css

bootstrap.css

91 ms

theme-index.css

theme-index.css

70 ms

styles.css

styles.css

68 ms

shared.css

shared.css

72 ms

components.css

components.css

96 ms

component.numo

component.numo

155 ms

jquery.fancybox.css

jquery.fancybox.css

99 ms

component.numo

component.numo

231 ms

helper.css

helper.css

115 ms

bootstrap-slider.css

bootstrap-slider.css

114 ms

index.css

index.css

115 ms

jquery.min.js

jquery.min.js

25 ms

jquery-migrate-1.2.1.js

jquery-migrate-1.2.1.js

22 ms

bootstrap.min.js

bootstrap.min.js

46 ms

modernizr.js

modernizr.js

136 ms

owl.carousel.min.js

owl.carousel.min.js

136 ms

jquery.fancybox.js

jquery.fancybox.js

137 ms

components.js

components.js

155 ms

wow.min.js

wow.min.js

157 ms

skrollr.min.js

skrollr.min.js

158 ms

jquery.waypoints.min.js

jquery.waypoints.min.js

159 ms

jquery.ui.totop.min.js

jquery.ui.totop.min.js

175 ms

jquery.easing.min.js

jquery.easing.min.js

177 ms

jquery.appear.js

jquery.appear.js

180 ms

jquery.countTo.js

jquery.countTo.js

182 ms

theme-init.js

theme-init.js

182 ms

videoseries

videoseries

268 ms

videoseries

videoseries

695 ms

body-bg.jpg

body-bg.jpg

192 ms

DOGGIESsmallclean---30x30.jpg

DOGGIESsmallclean---30x30.jpg

192 ms

bg-dark.jpg

bg-dark.jpg

213 ms

italytripcountry.jpg

italytripcountry.jpg

229 ms

flingrecital4%201920.jpg

flingrecital4%201920.jpg

238 ms

flingdebate%201920.jpg

flingdebate%201920.jpg

209 ms

class%20teaching2.jpg

class%20teaching2.jpg

250 ms

2018%20picture-01%201920%2072.jpg

2018%20picture-01%201920%2072.jpg

628 ms

theme-index.css

theme-index.css

230 ms

IMG_8756.JPG

IMG_8756.JPG

299 ms

border-bg-dark.png

border-bg-dark.png

252 ms

flingteaching.jpg

flingteaching.jpg

271 ms

micah%20320.jpg

micah%20320.jpg

274 ms

IMG_8794.JPG

IMG_8794.JPG

274 ms

IMG_8823.JPG

IMG_8823.JPG

298 ms

IMG_0842.JPG

IMG_0842.JPG

511 ms

section-bg-a.jpg

section-bg-a.jpg

627 ms

logo.png

logo.png

510 ms

back-to-top-arrow.png

back-to-top-arrow.png

625 ms

Qw3aZQNVED7rKGKxtqIqX5EUDXx9.ttf

Qw3aZQNVED7rKGKxtqIqX5EUDXx9.ttf

97 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

111 ms

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

111 ms

KFOkCnqEu92Fr1MmgVxIIzc.ttf

KFOkCnqEu92Fr1MmgVxIIzc.ttf

116 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

94 ms

www-player.css

www-player.css

29 ms

www-embed-player.js

www-embed-player.js

49 ms

base.js

base.js

76 ms

Accessibility Review

gbt.org accessibility score

75

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

gbt.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

gbt.org SEO score

83

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

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 Gbt.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 Gbt.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

gbt.org

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