Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

jdair.com

JDAir.com – Experimental Aircraft Parts for Vans RV Aircraft

Page Load Speed

2.1 sec in total

First Response

230 ms

Resources Loaded

1.7 sec

Page Rendered

189 ms

jdair.com screenshot

About Website

Welcome to jdair.com homepage info - get ready to check JDAir best content right away, or after learning these important things about jdair.com

JD Air sells the best aftermarket experimental aircraft parts including rudder pedal extensions, tail wheel steering links and other parts for the Vans RV Aircraft. Click Here To Browse Our Store!

Visit jdair.com

Key Findings

We analyzed Jdair.com page load time and found that the first response time was 230 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

jdair.com performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value270 ms

82/100

30%

CLS (Cumulative Layout Shift)

Value0.281

43/100

15%

TTI (Time to Interactive)

Value6.1 s

63/100

10%

Network Requests Diagram

jdair.com

230 ms

jdair.com

134 ms

www.jdair.com

542 ms

css

126 ms

css

148 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 6% of them (5 requests) were addressed to the original Jdair.com, 44% (40 requests) were made to Cdn9.bigcommerce.com and 20% (18 requests) were made to Cdn10.bigcommerce.com. The less responsive or slowest element that took the longest time to load (542 ms) belongs to the original domain Jdair.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 113.9 kB (5%)

Content Size

2.4 MB

After Optimization

2.3 MB

In fact, the total size of Jdair.com main page is 2.4 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. 50% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 51.0 kB

  • Original 60.6 kB
  • After minification 55.1 kB
  • After compression 9.6 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 51.0 kB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 389 B

  • Original 2.1 MB
  • After minification 2.1 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. JDAir images are well optimized though.

JavaScript Optimization

-24%

Potential reduce by 48.0 kB

  • Original 202.7 kB
  • After minification 202.6 kB
  • After compression 154.6 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 48.0 kB or 24% of the original size.

CSS Optimization

-33%

Potential reduce by 14.4 kB

  • Original 44.1 kB
  • After minification 44.1 kB
  • After compression 29.7 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. Jdair.com needs all CSS files to be minified and compressed as it can save up to 14.4 kB or 33% of the original size.

Requests Breakdown

Number of requests can be reduced by 61 (76%)

Requests Now

80

After Optimization

19

The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JDAir. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

jdair.com accessibility score

54

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

Form elements do not have associated labels

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

jdair.com best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

jdair.com SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

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 Jdair.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 Jdair.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 description is not detected on the main page of JDAir. 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: