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

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 40

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

darkoo.en.alibaba.com

Company Overview - Darkoo Optics (Zhongshan) Co., Ltd.

Page Load Speed

3.8 sec in total

First Response

278 ms

Resources Loaded

3 sec

Page Rendered

444 ms

darkoo.en.alibaba.com screenshot

About Website

Welcome to darkoo.en.alibaba.com homepage info - get ready to check Darkoo En Alibaba best content for China right away, or after learning these important things about darkoo.en.alibaba.com

Darkoo Optics (Zhongshan) Co., Ltd. Products:LED Lens/LED Optical Lens/LED Light Lens/Linear LED Lens; LED Lens Reflector/LED Reflector Cup/Cob Reflector/LED Light Reflector

Visit darkoo.en.alibaba.com

Key Findings

We analyzed Darkoo.en.alibaba.com page load time and found that the first response time was 278 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

darkoo.en.alibaba.com performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value25.3 s

0/100

25%

SI (Speed Index)

Value19.2 s

0/100

10%

TBT (Total Blocking Time)

Value3,500 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.195

63/100

15%

TTI (Time to Interactive)

Value30.8 s

0/100

10%

Network Requests Diagram

darkoo.en.alibaba.com

278 ms

darkoo.en.alibaba.com

268 ms

37 ms

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

36 ms

O1CN01Xt4rje1w9QKVzNB6S_!!6000000006265-2-tps-3084-90.png

35 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 4% of them (3 requests) were addressed to the original Darkoo.en.alibaba.com, 29% (20 requests) were made to Img.alicdn.com and 24% (17 requests) were made to Sc02.alicdn.com. The less responsive or slowest element that took the longest time to load (2.5 sec) relates to the external source Sc02.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 799.8 kB (40%)

Content Size

2.0 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Darkoo.en.alibaba.com main page is 2.0 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. Javascripts take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 495.0 kB

  • Original 600.0 kB
  • After minification 599.2 kB
  • After compression 105.0 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 495.0 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 5.8 kB

  • Original 191.0 kB
  • After minification 185.1 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. Darkoo En Alibaba images are well optimized though.

JavaScript Optimization

-24%

Potential reduce by 299.0 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 930.0 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 299.0 kB or 24% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (25%)

Requests Now

68

After Optimization

51

  • AJAX
  • Images
  • JavaScript

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Darkoo 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

darkoo.en.alibaba.com

darkoo.en.alibaba.com

278 ms

darkoo.en.alibaba.com

darkoo.en.alibaba.com

268 ms

37 ms

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36 ms

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35 ms

index.js

index.js

101 ms

index.js

index.js

45 ms

renderHeader.js

renderHeader.js

52 ms

awsc.js

awsc.js

57 ms

10 ms

7.gif

7.gif

52 ms

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592 ms

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45 ms

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45 ms

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43 ms

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44 ms

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75 ms

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181 ms

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181 ms

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181 ms

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181 ms

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181 ms

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181 ms

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350 ms

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293 ms

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287 ms

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300 ms

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284 ms

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280 ms

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366 ms

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365 ms

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375 ms

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364 ms

darkoo.en.alibaba.com

darkoo.en.alibaba.com

240 ms

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646 ms

Aluminum-Led-Reflector-Cup-Indoor-Lamp-Parts.jpg_640x640.jpg

Aluminum-Led-Reflector-Cup-Indoor-Lamp-Parts.jpg_640x640.jpg

370 ms

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Modern-Linear-Trunking-Light-30-60-24.jpg_640x640.jpg

1031 ms

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High-Power-Mini-Lighting-Optical-Cob-Round.jpg_640x640.jpg

773 ms

High-Transmittance-5050-Module-Optical-Led-Street.jpg_640x640.jpg

High-Transmittance-5050-Module-Optical-Led-Street.jpg_640x640.jpg

643 ms

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100-120-154-173-252Mm-Tunnel-Lighting.jpg_640x640.jpg

899 ms

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688 ms

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Darkoo-Optical-Lenses-Factory-Led-Module-Lens.jpg_640x640.jpg

857 ms

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Stage-Lighting-5050-Optical-Acrylic-Lensed-5MM.jpg_640x640.jpg

1140 ms

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656 ms

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611 ms

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997 ms

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748 ms

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1002 ms

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991 ms

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749 ms

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2344 ms

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1125 ms

et_n.js

et_n.js

64 ms

um.js

um.js

169 ms

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High-Efficiency-226mm-Diameter-120-Degrees-Round.jpg_640x640.jpg

1119 ms

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Waterproof-Ip65-30-In-1-60-Degrees.jpg_640x640.jpg

1488 ms

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Hot-COB-Downlight-LED-Reflector-50mm-36degree.jpg_640x640.jpg

1426 ms

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1467 ms

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378 ms

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1606 ms

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1747 ms

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1428 ms

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1403 ms

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2484 ms

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2144 ms

wu.json

wu.json

20 ms

um.json

um.json

52 ms

getUmid.do

getUmid.do

33 ms

eg.js

eg.js

2 ms

index.js

index.js

7 ms

Accessibility Review

darkoo.en.alibaba.com accessibility score

40

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

darkoo.en.alibaba.com best practices score

75

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

SEO Factors

darkoo.en.alibaba.com SEO score

86

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 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 Darkoo.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 Darkoo.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

darkoo.en.alibaba.com

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