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

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 41

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

nbuweldtech.en.alibaba.com

Ningbo Youhan Welding Technology Co., Ltd. - Welding Equipment, Heating Torch

Page Load Speed

2.7 sec in total

First Response

75 ms

Resources Loaded

2.4 sec

Page Rendered

241 ms

nbuweldtech.en.alibaba.com screenshot

About Website

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

Ningbo Youhan Welding Technology Co., Ltd., Experts in Manufacturing and Exporting Welding Equipment, Heating Torch and 0 more Products.

Visit nbuweldtech.en.alibaba.com

Key Findings

We analyzed Nbuweldtech.en.alibaba.com page load time and found that the first response time was 75 ms and then it took 2.6 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

nbuweldtech.en.alibaba.com performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value14.8 s

0/100

25%

SI (Speed Index)

Value14.2 s

1/100

10%

TBT (Total Blocking Time)

Value4,120 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.53

14/100

15%

TTI (Time to Interactive)

Value31.7 s

0/100

10%

Network Requests Diagram

nbuweldtech.en.alibaba.com

75 ms

nbuweldtech.en.alibaba.com

601 ms

65 ms

39 ms

52 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Nbuweldtech.en.alibaba.com, 44% (31 requests) were made to S.alicdn.com and 10% (7 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Fourier.taobao.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.1 MB (60%)

Content Size

6.8 MB

After Optimization

2.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nbuweldtech.en.alibaba.com main page is 6.8 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. 70% of websites need less resources to load. Javascripts take 5.4 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 300.3 kB

  • Original 381.1 kB
  • After minification 377.2 kB
  • After compression 80.8 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 300.3 kB or 79% of the original size.

Image Optimization

-29%

Potential reduce by 183.7 kB

  • Original 634.5 kB
  • After minification 450.8 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, Nbuweldtech En Alibaba needs image optimization as it can save up to 183.7 kB or 29% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-61%

Potential reduce by 3.3 MB

  • Original 5.4 MB
  • After minification 5.4 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 3.3 MB or 61% of the original size.

CSS Optimization

-72%

Potential reduce by 294.6 kB

  • Original 407.6 kB
  • After minification 356.7 kB
  • After compression 113.0 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. Nbuweldtech.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 294.6 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (71%)

Requests Now

59

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nbuweldtech 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

nbuweldtech.en.alibaba.com

nbuweldtech.en.alibaba.com

75 ms

nbuweldtech.en.alibaba.com

nbuweldtech.en.alibaba.com

601 ms

65 ms

39 ms

52 ms

header.css

header.css

54 ms

header.js

header.js

53 ms

web-index.css

web-index.css

51 ms

web-index.css

web-index.css

60 ms

web-index.css

web-index.css

151 ms

web-index.css

web-index.css

61 ms

web-index.css

web-index.css

150 ms

277 ms

150 ms

index.js

index.js

145 ms

146 ms

awsc.js

awsc.js

134 ms

83 ms

H2e2640c733e046889b7ec3f925aec1a8A.jpg

H2e2640c733e046889b7ec3f925aec1a8A.jpg

309 ms

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

181 ms

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

81 ms

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

80 ms

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

308 ms

personTipsInfo.do

personTipsInfo.do

159 ms

eg.js

eg.js

258 ms

19 ms

O1CN01kdASbu1gwr9DpPPgA_!!6000000004207-2-tps-290-296.png

O1CN01kdASbu1gwr9DpPPgA_!!6000000004207-2-tps-290-296.png

111 ms

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

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

239 ms

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

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

241 ms

TB1k1Ive3oQMeJjy0FoXXcShVXa-1200-280.png

TB1k1Ive3oQMeJjy0FoXXcShVXa-1200-280.png

241 ms

roboto-regular.woff

roboto-regular.woff

95 ms

roboto-medium.woff

roboto-medium.woff

94 ms

roboto-light.woff

roboto-light.woff

95 ms

roboto-thin.woff

roboto-thin.woff

95 ms

roboto-bold.woff

roboto-bold.woff

232 ms

et_n.js

et_n.js

126 ms

um.js

um.js

228 ms

sc.globalxman.appscene

sc.globalxman.appscene

150 ms

icon-font.woff

icon-font.woff

50 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

191 ms

footer.css

footer.css

31 ms

light0.5x.png

light0.5x.png

102 ms

pages_version.html

pages_version.html

183 ms

defer-common.js

defer-common.js

179 ms

i.alicdn.com

i.alicdn.com

299 ms

index.js

index.js

101 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

43 ms

index.js

index.js

253 ms

wu.json

wu.json

222 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

49 ms

index.js

index.js

45 ms

index.js

index.js

167 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

195 ms

7.gif

7.gif

26 ms

baxiaCommon.js

baxiaCommon.js

150 ms

rp

rp

1170 ms

store-proxy.html

store-proxy.html

163 ms

countryCurrencyDataService

countryCurrencyDataService

169 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

110 ms

personRoleInfo.do

personRoleInfo.do

113 ms

notification.do

notification.do

144 ms

index.web.css

index.web.css

58 ms

index.web.js

index.web.js

231 ms

index.js

index.js

27 ms

iconfont.woff

iconfont.woff

11 ms

iconfont.woff

iconfont.woff

3 ms

um.json

um.json

53 ms

getUmid.do

getUmid.do

9 ms

availableSurveyQuery.json

availableSurveyQuery.json

43 ms

index.css

index.css

12 ms

Accessibility Review

nbuweldtech.en.alibaba.com accessibility score

41

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

nbuweldtech.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

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

nbuweldtech.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 Nbuweldtech.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 Nbuweldtech.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

nbuweldtech.en.alibaba.com

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