Report Summary

  • 80

    Performance

    Renders faster than
    86% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

dandjsupply.com

D and J Supply, Inc. - Heavy Duty, Truck Parts, Truck

Page Load Speed

680 ms in total

First Response

52 ms

Resources Loaded

278 ms

Page Rendered

350 ms

dandjsupply.com screenshot

About Website

Click here to check amazing D And J Supply content. Otherwise, check out these important facts you probably never knew about dandjsupply.com

With over 40 years in the business, we have the experience needed to help you find the right parts for all your heavy duty vehicles. Located in Lithonia, GA.

Visit dandjsupply.com

Key Findings

We analyzed Dandjsupply.com page load time and found that the first response time was 52 ms and then it took 628 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

dandjsupply.com performance score

80

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

55/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

47/100

25%

SI (Speed Index)

Value2.8 s

95/100

10%

TBT (Total Blocking Time)

Value110 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.9 s

88/100

10%

Network Requests Diagram

dandjsupply.com

52 ms

120 ms

script.js

14 ms

UX.4.24.0.js

27 ms

script.js

15 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that 8% of them (1 request) were addressed to the original Dandjsupply.com, 92% (11 requests) were made to Img1.wsimg.com. The less responsive or slowest element that took the longest time to load (120 ms) relates to the external source Img1.wsimg.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 322.0 kB (32%)

Content Size

993.4 kB

After Optimization

671.4 kB

In fact, the total size of Dandjsupply.com main page is 993.4 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. 20% of websites need less resources to load. Images take 529.2 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 61.3 kB

  • Original 74.7 kB
  • After minification 74.7 kB
  • After compression 13.4 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 61.3 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 529.2 kB
  • After minification 529.2 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. D And J Supply images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 260.6 kB

  • Original 389.5 kB
  • After minification 389.5 kB
  • After compression 128.8 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 260.6 kB or 67% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (60%)

Requests Now

5

After Optimization

2

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of D And J Supply. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

dandjsupply.com accessibility score

92

Accessibility Issues

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

Best Practices

dandjsupply.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

dandjsupply.com SEO score

92

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

Image elements do not have [alt] attributes

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 Dandjsupply.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 Dandjsupply.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

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