Tools & Wizards About Us
cdtrader.ca screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 96

    SEO

    Google-friendlier than
    90% of websites

cdtrader.ca

Used CDs, records, and DVDs Calgary | Home | CD Trader Ltd

Page Load Speed

1.2 sec in total

First Response

89 ms

Resources Loaded

1 sec

Page Rendered

56 ms

cdtrader.ca screenshot

About Website

Welcome to cdtrader.ca homepage info - get ready to check CD Trader best content right away, or after learning these important things about cdtrader.ca

Come to CD Trader in Calgary to purchase all your favorite collectibles from used CDs, vinyl records, and DVDs. We also buy your gently used collectibles!

Visit cdtrader.ca

Key Findings

We analyzed Cdtrader.ca page load time and found that the first response time was 89 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

cdtrader.ca performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

61/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value4,510 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value17.3 s

4/100

10%

Network Requests Diagram

www.cdtrader.ca

89 ms

minified.js

28 ms

focus-within-polyfill.js

66 ms

polyfill.min.js

65 ms

thunderbolt-commons.b70ee867.bundle.min.js

140 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Cdtrader.ca, 34% (12 requests) were made to Static.parastorage.com and 31% (11 requests) were made to Sentry-next.wixpress.com. The less responsive or slowest element that took the longest time to load (259 ms) relates to the external source Static.wixstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 389.1 kB (41%)

Content Size

939.7 kB

After Optimization

550.6 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Cdtrader.ca main page is 939.7 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. 45% of websites need less resources to load. HTML takes 429.0 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 336.4 kB

  • Original 429.0 kB
  • After minification 427.4 kB
  • After compression 92.6 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 336.4 kB or 78% of the original size.

Image Optimization

-1%

Potential reduce by 2.0 kB

  • Original 203.8 kB
  • After minification 201.8 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. CD Trader images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 50.7 kB

  • Original 306.9 kB
  • After minification 306.9 kB
  • After compression 256.2 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 50.7 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (48%)

Requests Now

21

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CD Trader. 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.cdtrader.ca

www.cdtrader.ca

89 ms

minified.js

minified.js

28 ms

focus-within-polyfill.js

focus-within-polyfill.js

66 ms

polyfill.min.js

polyfill.min.js

65 ms

thunderbolt-commons.b70ee867.bundle.min.js

thunderbolt-commons.b70ee867.bundle.min.js

140 ms

main.317ed945.bundle.min.js

main.317ed945.bundle.min.js

155 ms

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

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

140 ms

lodash.min.js

lodash.min.js

140 ms

react.production.min.js

react.production.min.js

140 ms

react-dom.production.min.js

react-dom.production.min.js

143 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

142 ms

ba2cd3_668edf2fb2754230aa60f09fe1803c2f~mv2.png

ba2cd3_668edf2fb2754230aa60f09fe1803c2f~mv2.png

259 ms

bundle.min.js

bundle.min.js

94 ms

ba2cd3_df2ef72294ca4148ae25effc8afbf5e0~mv2.jpg

ba2cd3_df2ef72294ca4148ae25effc8afbf5e0~mv2.jpg

169 ms

ba2cd3_9b356cb05a654848a6f317fb2eab91e6~mv2.jpg

ba2cd3_9b356cb05a654848a6f317fb2eab91e6~mv2.jpg

200 ms

ba2cd3_a9aac85adcfb423b93e4b7a7c71eb8e3~mv2.jpg

ba2cd3_a9aac85adcfb423b93e4b7a7c71eb8e3~mv2.jpg

258 ms

home8.jpg

home8.jpg

254 ms

ba2cd3_aaa6a3d323b4417aad146f50f9803a95~mv2.png

ba2cd3_aaa6a3d323b4417aad146f50f9803a95~mv2.png

170 ms

123 ms

124 ms

128 ms

125 ms

126 ms

124 ms

170 ms

167 ms

170 ms

166 ms

164 ms

file.woff

file.woff

4 ms

file.woff

file.woff

16 ms

deprecation-en.v5.html

deprecation-en.v5.html

12 ms

bolt-performance

bolt-performance

14 ms

deprecation-style.v5.css

deprecation-style.v5.css

9 ms

right-arrow.svg

right-arrow.svg

6 ms

Accessibility Review

cdtrader.ca accessibility score

95

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.

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

cdtrader.ca 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

Page has valid source maps

SEO Factors

cdtrader.ca SEO score

96

Search Engine Optimization Advices

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 Cdtrader.ca 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 Cdtrader.ca 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

cdtrader.ca

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