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tnha.en.alibaba.com screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

tnha.en.alibaba.com

ZHEJIANG TNHA ELECTRICAL CO.,LTD. - Pushbutton switch, Pendant control station

Page Load Speed

3.1 sec in total

First Response

367 ms

Resources Loaded

2.5 sec

Page Rendered

223 ms

tnha.en.alibaba.com screenshot

About Website

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

ZHEJIANG TNHA ELECTRICAL CO.,LTD., Experts in Manufacturing and Exporting Pushbutton switch, Pendant control station and 0 more Products.

Visit tnha.en.alibaba.com

Key Findings

We analyzed Tnha.en.alibaba.com page load time and found that the first response time was 367 ms and then it took 2.7 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

tnha.en.alibaba.com performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

63/100

25%

SI (Speed Index)

Value13.4 s

2/100

10%

TBT (Total Blocking Time)

Value4,740 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.6

11/100

15%

TTI (Time to Interactive)

Value26.5 s

0/100

10%

Network Requests Diagram

tnha.en.alibaba.com

367 ms

tnha.en.alibaba.com

721 ms

84 ms

70 ms

header.css

76 ms

Our browser made a total of 93 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Tnha.en.alibaba.com, 52% (48 requests) were made to S.alicdn.com and 9% (8 requests) were made to Sc01.alicdn.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source S.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.0 MB (63%)

Content Size

6.3 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tnha.en.alibaba.com main page is 6.3 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. Only a small number of websites need less resources to load. Javascripts take 5.3 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 476.3 kB

  • Original 575.7 kB
  • After minification 571.7 kB
  • After compression 99.4 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 476.3 kB or 83% of the original size.

Image Optimization

-16%

Potential reduce by 8.9 kB

  • Original 57.1 kB
  • After minification 48.2 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, TNHA En Alibaba needs image optimization as it can save up to 8.9 kB or 16% 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 3.2 MB

  • Original 5.3 MB
  • After minification 5.3 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 3.2 MB or 61% of the original size.

CSS Optimization

-72%

Potential reduce by 284.3 kB

  • Original 396.5 kB
  • After minification 345.6 kB
  • After compression 112.2 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. Tnha.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 284.3 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (59%)

Requests Now

82

After Optimization

34

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 82 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TNHA 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

tnha.en.alibaba.com

tnha.en.alibaba.com

367 ms

tnha.en.alibaba.com

tnha.en.alibaba.com

721 ms

84 ms

70 ms

header.css

header.css

76 ms

header.js

header.js

190 ms

76 ms

web-index.css

web-index.css

74 ms

web-index.css

web-index.css

131 ms

web-index.css

web-index.css

72 ms

web-index.css

web-index.css

76 ms

web-index.css

web-index.css

78 ms

154 ms

42 ms

index.js

index.js

151 ms

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274 ms

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H8c1c4d1a86f7415991e5a3e812896718u.jpg

864 ms

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229 ms

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64 ms

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65 ms

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266 ms

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H9f24e02f9eea4be188ef964d8897d44eX.jpg_q80.jpg

511 ms

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265 ms

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791 ms

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664 ms

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718 ms

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716 ms

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861 ms

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972 ms

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1353 ms

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728 ms

138 ms

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1369 ms

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654 ms

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238 ms

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382 ms

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460 ms

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1043 ms

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560 ms

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610 ms

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652 ms

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728 ms

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683 ms

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875 ms

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798 ms

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938 ms

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992 ms

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1038 ms

awsc.js

awsc.js

239 ms

196 ms

roboto-regular.woff

roboto-regular.woff

856 ms

roboto-medium.woff

roboto-medium.woff

870 ms

roboto-light.woff

roboto-light.woff

871 ms

roboto-thin.woff

roboto-thin.woff

885 ms

roboto-bold.woff

roboto-bold.woff

886 ms

personTipsInfo.do

personTipsInfo.do

181 ms

716 ms

icon-font.woff

icon-font.woff

715 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

186 ms

footer.css

footer.css

711 ms

eg.js

eg.js

29 ms

et_n.js

et_n.js

14 ms

um.js

um.js

10 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

54 ms

index.js

index.js

43 ms

index.js

index.js

43 ms

wu.json

wu.json

51 ms

sc.globalxman.appscene

sc.globalxman.appscene

24 ms

7.gif

7.gif

26 ms

baxiaCommon.js

baxiaCommon.js

30 ms

rp

rp

1118 ms

um.json

um.json

57 ms

getUmid.do

getUmid.do

34 ms

light0.5x.png

light0.5x.png

54 ms

pages_version.html

pages_version.html

312 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

28 ms

defer-common.js

defer-common.js

100 ms

i.alicdn.com

i.alicdn.com

305 ms

index.js

index.js

24 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

20 ms

store-proxy.html

store-proxy.html

155 ms

countryCurrencyDataService

countryCurrencyDataService

202 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

119 ms

personRoleInfo.do

personRoleInfo.do

139 ms

notification.do

notification.do

172 ms

index.js

index.js

49 ms

index.web.css

index.web.css

21 ms

index.web.js

index.web.js

56 ms

index.js

index.js

79 ms

iconfont.woff

iconfont.woff

73 ms

iconfont.woff

iconfont.woff

74 ms

availableSurveyQuery.json

availableSurveyQuery.json

46 ms

index.css

index.css

23 ms

Accessibility Review

tnha.en.alibaba.com accessibility score

69

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

tnha.en.alibaba.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

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

tnha.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 Tnha.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 Tnha.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

tnha.en.alibaba.com

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