Tools & Wizards About Us
jackkay.en.alibaba.com screenshot

Report Summary

  • 5

    Performance

    Renders faster than
    21% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

jackkay.en.alibaba.com

Company Overview - Shenzhen Jackkay Electronic Technology Co., Ltd.

Page Load Speed

2.2 sec in total

First Response

121 ms

Resources Loaded

1.5 sec

Page Rendered

539 ms

jackkay.en.alibaba.com screenshot

About Website

Visit jackkay.en.alibaba.com now to see the best up-to-date Jackkay En Alibaba content for China and also check out these interesting facts you probably never knew about jackkay.en.alibaba.com

Shenzhen Jackkay Electronic Technology Co., Ltd. Products:Wireless headphone,TWS earbuds,Wired headset,Over ear headset,in ear earphone

Visit jackkay.en.alibaba.com

Key Findings

We analyzed Jackkay.en.alibaba.com page load time and found that the first response time was 121 ms and then it took 2.1 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

jackkay.en.alibaba.com performance score

5

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value12.0 s

0/100

25%

SI (Speed Index)

Value15.3 s

1/100

10%

TBT (Total Blocking Time)

Value8,290 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.379

28/100

15%

TTI (Time to Interactive)

Value32.2 s

0/100

10%

Network Requests Diagram

jackkay.en.alibaba.com

121 ms

jackkay.en.alibaba.com

447 ms

17 ms

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

219 ms

index.js

305 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 8% of them (2 requests) were addressed to the original Jackkay.en.alibaba.com, 42% (10 requests) were made to S.alicdn.com and 13% (3 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (789 ms) relates to the external source S.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (51%)

Content Size

2.2 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Jackkay.en.alibaba.com main page is 2.2 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. 25% of websites need less resources to load. Javascripts take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 681.8 kB

  • Original 805.9 kB
  • After minification 805.1 kB
  • After compression 124.1 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 681.8 kB or 85% of the original size.

Image Optimization

-55%

Potential reduce by 37.6 kB

  • Original 68.2 kB
  • After minification 30.6 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. Obviously, Jackkay En Alibaba needs image optimization as it can save up to 37.6 kB or 55% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-30%

Potential reduce by 390.7 kB

  • Original 1.3 MB
  • After minification 1.3 MB
  • After compression 928.5 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 390.7 kB or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (50%)

Requests Now

22

After Optimization

11

  • AJAX
  • Images
  • JavaScript

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jackkay En Alibaba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

jackkay.en.alibaba.com

jackkay.en.alibaba.com

121 ms

jackkay.en.alibaba.com

jackkay.en.alibaba.com

447 ms

17 ms

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

219 ms

index.js

index.js

305 ms

index.js

index.js

254 ms

renderHeader.js

renderHeader.js

254 ms

awsc.js

awsc.js

37 ms

7 ms

7.gif

7.gif

213 ms

et_n.js

et_n.js

16 ms

um.js

um.js

7 ms

H75a4178d8d984e8fa21e955a283c9881l.jpg

H75a4178d8d984e8fa21e955a283c9881l.jpg

285 ms

O1CN01eP7P8d1y1kdsWFgqQ_!!6000000006519-2-tps-1920-200.png

O1CN01eP7P8d1y1kdsWFgqQ_!!6000000006519-2-tps-1920-200.png

63 ms

H39f60d4eaa0e4947be22f2c27a288161l.jpg

H39f60d4eaa0e4947be22f2c27a288161l.jpg

450 ms

Ha09e4b6f1860418893ea5c46e6d00229O.jpg

Ha09e4b6f1860418893ea5c46e6d00229O.jpg

221 ms

H4e405c6afbe647d696489588dee2afdaF.jpg

H4e405c6afbe647d696489588dee2afdaF.jpg

789 ms

Jackkay-D92-Graffiti-headset-auriculares-audifono-hot.png_350x350.jpg

Jackkay-D92-Graffiti-headset-auriculares-audifono-hot.png_350x350.jpg

672 ms

H71c28700fa2b48f78ab90465dc34728dW.jpg

H71c28700fa2b48f78ab90465dc34728dW.jpg

265 ms

wu.json

wu.json

65 ms

um.json

um.json

59 ms

getUmid.do

getUmid.do

37 ms

eg.js

eg.js

2 ms

index.js

index.js

4 ms

Accessibility Review

jackkay.en.alibaba.com accessibility score

64

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

jackkay.en.alibaba.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

jackkay.en.alibaba.com SEO score

79

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 doesn't use 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 Jackkay.en.alibaba.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 Jackkay.en.alibaba.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

jackkay.en.alibaba.com

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