Tools & Wizards About Us
cdxlearning.com screenshot

Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 78

    SEO

    Google-friendlier than
    39% of websites

cdxlearning.com

CDX Learning Systems | Automotive Technician Training

Page Load Speed

2.2 sec in total

First Response

288 ms

Resources Loaded

1.6 sec

Page Rendered

290 ms

cdxlearning.com screenshot

About Website

Visit cdxlearning.com now to see the best up-to-date CDX Learning content for United States and also check out these interesting facts you probably never knew about cdxlearning.com

CDX Learning Systems provides interactive and experiential curriculum to train today's skilled technicians in accordance with NATEF and ASE standards

Visit cdxlearning.com

Key Findings

We analyzed Cdxlearning.com page load time and found that the first response time was 288 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

cdxlearning.com performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value7.9 s

3/100

25%

SI (Speed Index)

Value7.7 s

24/100

10%

TBT (Total Blocking Time)

Value1,590 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.274

44/100

15%

TTI (Time to Interactive)

Value18.8 s

3/100

10%

Network Requests Diagram

www.cdxlearning.com

288 ms

style.css

136 ms

jquery-3.5.1.min.js

10 ms

jquery-migrate-1.2.1.min.js

12 ms

carousel.css

68 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that 84% of them (52 requests) were addressed to the original Cdxlearning.com, 5% (3 requests) were made to Cdn.sitesearch360.com and 3% (2 requests) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (770 ms) belongs to the original domain Cdxlearning.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 732.0 kB (12%)

Content Size

6.2 MB

After Optimization

5.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cdxlearning.com main page is 6.2 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 5.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 109.5 kB

  • Original 132.0 kB
  • After minification 123.9 kB
  • After compression 22.5 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 109.5 kB or 83% of the original size.

Image Optimization

-12%

Potential reduce by 619.3 kB

  • Original 5.1 MB
  • After minification 4.5 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. Obviously, CDX Learning needs image optimization as it can save up to 619.3 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 2.3 kB

  • Original 978.7 kB
  • After minification 978.7 kB
  • After compression 976.4 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

-6%

Potential reduce by 926 B

  • Original 15.2 kB
  • After minification 15.2 kB
  • After compression 14.3 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. Cdxlearning.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 22 (39%)

Requests Now

57

After Optimization

35

  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CDX Learning. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.cdxlearning.com

www.cdxlearning.com

288 ms

style.css

style.css

136 ms

jquery-3.5.1.min.js

jquery-3.5.1.min.js

10 ms

jquery-migrate-1.2.1.min.js

jquery-migrate-1.2.1.min.js

12 ms

carousel.css

carousel.css

68 ms

runtime.880e002645043e89.js

runtime.880e002645043e89.js

66 ms

polyfills.7da9278c3d58fe34.js

polyfills.7da9278c3d58fe34.js

101 ms

styles.1de547115d99faa4.css

styles.1de547115d99faa4.css

136 ms

main.65619963d9c831c1.js

main.65619963d9c831c1.js

471 ms

main.673cb3256a64008e.js

main.673cb3256a64008e.js

419 ms

main.f13070b74080ac18.js

main.f13070b74080ac18.js

617 ms

cookiebanner.js

cookiebanner.js

153 ms

current.js

current.js

65 ms

email-decode.min.js

email-decode.min.js

115 ms

loader.min.js

loader.min.js

161 ms

carousel.js

carousel.js

167 ms

Bootstrap.js

Bootstrap.js

18 ms

common.min.css

common.min.css

103 ms

87d646d1-ab53-4013-bd6c-e8abed6b7593.png

87d646d1-ab53-4013-bd6c-e8abed6b7593.png

70 ms

01_cdx_fat_3e_1500x320_v5.jpg

01_cdx_fat_3e_1500x320_v5.jpg

185 ms

02_cdxa1pfpel_mlr_1500x320_v5.jpg

02_cdxa1pfpel_mlr_1500x320_v5.jpg

87 ms

03_mat_1500x300_v5.jpg

03_mat_1500x300_v5.jpg

248 ms

04_cdx_mh_engines_2e_1500x320_v5.jpg

04_cdx_mh_engines_2e_1500x320_v5.jpg

286 ms

05_cdxmhpf9el_mh_systems_1500x320_v5.jpg

05_cdxmhpf9el_mh_systems_1500x320_v5.jpg

275 ms

06_cdxmhpf9el_mhe_1500x320_v5.jpg

06_cdxmhpf9el_mhe_1500x320_v5.jpg

429 ms

service_automotive.png

service_automotive.png

262 ms

service_mobile2.png

service_mobile2.png

332 ms

red-truck.jpg

red-truck.jpg

317 ms

sbd-ebook-cta.jpg

sbd-ebook-cta.jpg

512 ms

nacat-logo-400.png

nacat-logo-400.png

334 ms

ase-edu-found-logo-450.png

ase-edu-found-logo-450.png

393 ms

aed-found-logo-400.png

aed-found-logo-400.png

394 ms

hero_images.jpg

hero_images.jpg

429 ms

hero_images_10.jpg

hero_images_10.jpg

446 ms

hero_images_11.jpg

hero_images_11.jpg

455 ms

hero_images_5.jpg

hero_images_5.jpg

509 ms

hero_images_6.jpg

hero_images_6.jpg

511 ms

hero_images_7.jpg

hero_images_7.jpg

770 ms

hero_images_8.jpg

hero_images_8.jpg

734 ms

hero_images_9.jpg

hero_images_9.jpg

559 ms

hero_images2.jpg

hero_images2.jpg

589 ms

hero_images3.jpg

hero_images3.jpg

610 ms

hero_images4.jpg

hero_images4.jpg

611 ms

cdx-home-btm1.jpg

cdx-home-btm1.jpg

610 ms

cdx-home-btm-rt.jpg

cdx-home-btm-rt.jpg

634 ms

ico-usaflag.jpg

ico-usaflag.jpg

638 ms

ico-canadaflag.jpg

ico-canadaflag.jpg

639 ms

header-logo.png

header-logo.png

284 ms

Frutiger-Black.woff

Frutiger-Black.woff

293 ms

FontAwesome.woff

FontAwesome.woff

301 ms

Frutiger-Light.woff

Frutiger-Light.woff

314 ms

gtm.js

gtm.js

67 ms

footer-logo.png

footer-logo.png

279 ms

twitter-x-18px.png

twitter-x-18px.png

308 ms

Frutiger-Bold.woff

Frutiger-Bold.woff

321 ms

8876.js

8876.js

45 ms

common.min.js

common.min.js

302 ms

main.min.js

main.min.js

317 ms

sitesearch360-v14.frozen.ff8b53019b40e21b6cee0caad0619c11.js

sitesearch360-v14.frozen.ff8b53019b40e21b6cee0caad0619c11.js

34 ms

mag-glass-red.png

mag-glass-red.png

303 ms

ss360-unibox-v14.chunk.ab353d8ed5a2bab66a62.js

ss360-unibox-v14.chunk.ab353d8ed5a2bab66a62.js

13 ms

ss360-styles-v14.chunk.955bfef94a96558909fb.js

ss360-styles-v14.chunk.955bfef94a96558909fb.js

31 ms

Accessibility Review

cdxlearning.com accessibility score

73

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

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.

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

cdxlearning.com best practices score

83

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

Missing source maps for large first-party JavaScript

SEO Factors

cdxlearning.com SEO score

78

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

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 Cdxlearning.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 Cdxlearning.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

cdxlearning.com

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