Tools & Wizards About Us
jason.org screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

jason.org

JASON Learning: Real-world STEM Curriculum available for all classrooms

Page Load Speed

6.5 sec in total

First Response

158 ms

Resources Loaded

5.2 sec

Page Rendered

1.1 sec

jason.org screenshot

About Website

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

The JASON Learning online library provides real-world STEM curriculum to educate the classrooms of tomorrow - from anywhere!

Visit jason.org

Key Findings

We analyzed Jason.org page load time and found that the first response time was 158 ms and then it took 6.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

jason.org performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value11.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value15.0 s

0/100

25%

SI (Speed Index)

Value16.6 s

0/100

10%

TBT (Total Blocking Time)

Value3,800 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value21.9 s

1/100

10%

Network Requests Diagram

jason.org

158 ms

jason.org

360 ms

style.min.css

156 ms

styles.css

199 ms

jquery.dataTables.min.css

91 ms

Our browser made a total of 178 requests to load all elements on the main page. We found that 66% of them (118 requests) were addressed to the original Jason.org, 12% (22 requests) were made to Gstatic.com and 8% (15 requests) were made to Cdn.datatables.net. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Jason.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (11%)

Content Size

9.3 MB

After Optimization

8.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jason.org main page is 9.3 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. Only a small number of websites need less resources to load. Images take 7.9 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 218.3 kB

  • Original 259.5 kB
  • After minification 251.6 kB
  • After compression 41.2 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 218.3 kB or 84% of the original size.

Image Optimization

-8%

Potential reduce by 672.3 kB

  • Original 7.9 MB
  • After minification 7.2 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. JASON images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 85.7 kB

  • Original 888.8 kB
  • After minification 888.3 kB
  • After compression 803.1 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

-13%

Potential reduce by 36.6 kB

  • Original 273.6 kB
  • After minification 273.6 kB
  • After compression 237.1 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. Jason.org needs all CSS files to be minified and compressed as it can save up to 36.6 kB or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 129 (75%)

Requests Now

171

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 171 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JASON. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 76 to 1 for JavaScripts and from 55 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jason.org

jason.org

158 ms

jason.org

jason.org

360 ms

style.min.css

style.min.css

156 ms

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199 ms

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91 ms

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80 ms

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89 ms

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81 ms

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91 ms

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88 ms

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69 ms

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201 ms

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398 ms

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431 ms

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479 ms

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84 ms

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83 ms

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88 ms

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93 ms

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96 ms

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113 ms

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113 ms

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90 ms

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87 ms

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dataTables.fixedHeader.min.js

93 ms

dataTables.fixedColumns.min.js

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93 ms

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99 ms

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61 ms

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55 ms

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28 ms

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465 ms

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421 ms

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496 ms

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492 ms

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494 ms

jquery.min.js

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484 ms

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429 ms

igsv-datatables.js

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557 ms

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557 ms

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560 ms

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532 ms

add-to-cart.min.js

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527 ms

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571 ms

woocommerce.min.js

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564 ms

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563 ms

frontend.js

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554 ms

i18n.min.js

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511 ms

main.js

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500 ms

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622 ms

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609 ms

autosize.min.js

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593 ms

cf7-material-design-bundle.js

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689 ms

salient-social.js

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556 ms

sourcebuster.min.js

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556 ms

order-attribution.min.js

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637 ms

jquery.easing.js

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636 ms

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635 ms

priority.js

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590 ms

transit.js

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569 ms

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572 ms

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571 ms

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534 ms

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518 ms

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flickity.min.js

516 ms

superfish.js

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1061 ms

g.gif

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167 ms

init.js

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1120 ms

touchswipe.min.js

touchswipe.min.js

986 ms

jquery.countdown.min.js

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983 ms

cart-fragments.min.js

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982 ms

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985 ms

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20 ms

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6 ms

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7 ms

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13 ms

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14 ms

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12 ms

annotationchart.css

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11 ms

jsapi_compiled_default_module.js

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37 ms

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895 ms

iKS_COPPA-9.png

iKS_COPPA-9.png

895 ms

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iKS_FERPA-10.png

895 ms

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896 ms

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1018 ms

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1444 ms

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2039 ms

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1224 ms

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76 ms

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2309 ms

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2285 ms

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2383 ms

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2445 ms

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1766 ms

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115 ms

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65 ms

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19 ms

Accessibility Review

jason.org accessibility score

83

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-*] attributes do not match their roles

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

jason.org best practices score

83

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

jason.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

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

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 Jason.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 Jason.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

jason.org

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