Tools & Wizards About Us
learnew-led.en.alibaba.com screenshot

Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 43

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

learnew-led.en.alibaba.com

Shenzhen Learnew Optoelectronics Technology Co., Ltd. - UV LED, COB LED

Page Load Speed

2.9 sec in total

First Response

122 ms

Resources Loaded

2.3 sec

Page Rendered

484 ms

learnew-led.en.alibaba.com screenshot

About Website

Click here to check amazing Learnew LED En Alibaba content for China. Otherwise, check out these important facts you probably never knew about learnew-led.en.alibaba.com

Shenzhen Learnew Optoelectronics Technology Co., Ltd., Experts in Manufacturing and Exporting UV LED, COB LED and 0 more Products.

Visit learnew-led.en.alibaba.com

Key Findings

We analyzed Learnew-led.en.alibaba.com page load time and found that the first response time was 122 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

learnew-led.en.alibaba.com performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value8.0 s

2/100

25%

SI (Speed Index)

Value11.5 s

5/100

10%

TBT (Total Blocking Time)

Value4,370 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.35

31/100

15%

TTI (Time to Interactive)

Value26.3 s

0/100

10%

Network Requests Diagram

learnew-led.en.alibaba.com

122 ms

learnew-led.en.alibaba.com

789 ms

79 ms

70 ms

header.css

121 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Learnew-led.en.alibaba.com, 45% (33 requests) were made to S.alicdn.com and 9% (7 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (985 ms) relates to the external source Fourier.taobao.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.7 MB (58%)

Content Size

6.4 MB

After Optimization

2.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Learnew-led.en.alibaba.com main page is 6.4 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. 60% of websites need less resources to load. Javascripts take 5.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 385.2 kB

  • Original 476.2 kB
  • After minification 472.3 kB
  • After compression 91.0 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 385.2 kB or 81% of the original size.

Image Optimization

-24%

Potential reduce by 137.1 kB

  • Original 575.4 kB
  • After minification 438.3 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, Learnew LED En Alibaba needs image optimization as it can save up to 137.1 kB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-59%

Potential reduce by 3.0 MB

  • Original 5.1 MB
  • After minification 5.1 MB
  • After compression 2.1 MB

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 3.0 MB or 59% of the original size.

CSS Optimization

-65%

Potential reduce by 203.3 kB

  • Original 315.1 kB
  • After minification 264.2 kB
  • After compression 111.8 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. Learnew-led.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 203.3 kB or 65% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (67%)

Requests Now

63

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Learnew LED 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 29 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

learnew-led.en.alibaba.com

learnew-led.en.alibaba.com

122 ms

learnew-led.en.alibaba.com

learnew-led.en.alibaba.com

789 ms

79 ms

70 ms

header.css

header.css

121 ms

header.js

header.js

132 ms

75 ms

web-index.css

web-index.css

132 ms

web-index.css

web-index.css

131 ms

web-index.css

web-index.css

132 ms

web-index.css

web-index.css

168 ms

web-index.css

web-index.css

168 ms

O1CN01KD2ycd23TlAhTEpWp_!!6000000007257-0-tps-3840-90.jpg

O1CN01KD2ycd23TlAhTEpWp_!!6000000007257-0-tps-3840-90.jpg

213 ms

439 ms

204 ms

index.js

index.js

210 ms

209 ms

O1CN01kpueUS231orwYDJAV_!!6000000007196-2-tps-132-34.png

O1CN01kpueUS231orwYDJAV_!!6000000007196-2-tps-132-34.png

465 ms

H987c6e73ab34491591f7367400080d33C.png

H987c6e73ab34491591f7367400080d33C.png

297 ms

H3f7c3426700e4083bb202da1ba62b2034.jpg_q80.jpg

H3f7c3426700e4083bb202da1ba62b2034.jpg_q80.jpg

330 ms

H6f76360bda964745bb291a97df17b7046.jpg_q80.jpg

H6f76360bda964745bb291a97df17b7046.jpg_q80.jpg

384 ms

O1CN01gZ3lTu1XIFHZfHHGr_!!6000000002900-2-tps-36-36.png

O1CN01gZ3lTu1XIFHZfHHGr_!!6000000002900-2-tps-36-36.png

661 ms

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

682 ms

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

807 ms

Hc1c8e8b9491b446fbf8d7da388bdf004P.jpg

Hc1c8e8b9491b446fbf8d7da388bdf004P.jpg

302 ms

roboto-regular.woff

roboto-regular.woff

115 ms

roboto-medium.woff

roboto-medium.woff

131 ms

roboto-light.woff

roboto-light.woff

121 ms

roboto-thin.woff

roboto-thin.woff

329 ms

roboto-bold.woff

roboto-bold.woff

161 ms

awsc.js

awsc.js

100 ms

62 ms

personTipsInfo.do

personTipsInfo.do

275 ms

62 ms

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

231 ms

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

257 ms

O1CN01REbO5M1iNFNVX2yeq_!!6000000004400-2-tps-1920-200.png

O1CN01REbO5M1iNFNVX2yeq_!!6000000004400-2-tps-1920-200.png

972 ms

O1CN01lsY1P61yvAejjEVHt_!!6000000006640-2-tps-584-560.png

O1CN01lsY1P61yvAejjEVHt_!!6000000006640-2-tps-584-560.png

971 ms

eg.js

eg.js

239 ms

et_n.js

et_n.js

108 ms

um.js

um.js

194 ms

icon-font.woff

icon-font.woff

104 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

149 ms

sc.globalxman.appscene

sc.globalxman.appscene

103 ms

wu.json

wu.json

494 ms

footer.css

footer.css

28 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

7 ms

index.js

index.js

289 ms

index.js

index.js

69 ms

7.gif

7.gif

3 ms

light0.5x.png

light0.5x.png

22 ms

pages_version.html

pages_version.html

384 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

12 ms

defer-common.js

defer-common.js

95 ms

i.alicdn.com

i.alicdn.com

62 ms

index.js

index.js

12 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

35 ms

index.js

index.js

202 ms

index.js

index.js

9 ms

store-proxy.html

store-proxy.html

128 ms

countryCurrencyDataService

countryCurrencyDataService

148 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

108 ms

personRoleInfo.do

personRoleInfo.do

103 ms

notification.do

notification.do

119 ms

index.css

index.css

69 ms

baxiaCommon.js

baxiaCommon.js

40 ms

rp

rp

985 ms

iconfont.woff

iconfont.woff

114 ms

iconfont.woff

iconfont.woff

97 ms

index.web.css

index.web.css

587 ms

index.web.js

index.web.js

128 ms

um.json

um.json

88 ms

availableSurveyQuery.json

availableSurveyQuery.json

61 ms

getUmid.do

getUmid.do

29 ms

Accessibility Review

learnew-led.en.alibaba.com accessibility score

43

Accessibility Issues

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

Buttons do not have an accessible name

High

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

High

Image elements do not have [alt] attributes

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.

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

learnew-led.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

Serves images with low resolution

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

learnew-led.en.alibaba.com SEO score

71

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

High

Document doesn't have a valid hreflang

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 Learnew-led.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 Learnew-led.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

learnew-led.en.alibaba.com

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