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

Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

venztech.en.alibaba.com

Shenzhen Venz Technology Co., Ltd. - Cameras, Zigbee Sensors

Page Load Speed

3.5 sec in total

First Response

81 ms

Resources Loaded

3.1 sec

Page Rendered

328 ms

venztech.en.alibaba.com screenshot

About Website

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

Shenzhen Venz Technology Co., Ltd., Experts in Manufacturing and Exporting Cameras, Zigbee Sensors and 0 more Products.

Visit venztech.en.alibaba.com

Key Findings

We analyzed Venztech.en.alibaba.com page load time and found that the first response time was 81 ms and then it took 3.4 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

venztech.en.alibaba.com performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value9.3 s

1/100

25%

SI (Speed Index)

Value14.2 s

1/100

10%

TBT (Total Blocking Time)

Value10,810 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.399

25/100

15%

TTI (Time to Interactive)

Value30.0 s

0/100

10%

Network Requests Diagram

venztech.en.alibaba.com

81 ms

venztech.en.alibaba.com

725 ms

152 ms

201 ms

header.css

176 ms

Our browser made a total of 78 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Venztech.en.alibaba.com, 56% (44 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 (2.1 sec) relates to the external source S.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.2 MB (64%)

Content Size

6.5 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Venztech.en.alibaba.com main page is 6.5 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

-84%

Potential reduce by 579.9 kB

  • Original 688.5 kB
  • After minification 684.6 kB
  • After compression 108.6 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 579.9 kB or 84% 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, Venz Tech 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

-62%

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 62% of the original size.

CSS Optimization

-72%

Potential reduce by 284.2 kB

  • Original 395.9 kB
  • After minification 345.1 kB
  • After compression 111.7 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. Venztech.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 284.2 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (66%)

Requests Now

67

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Venz Tech 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

venztech.en.alibaba.com

venztech.en.alibaba.com

81 ms

venztech.en.alibaba.com

venztech.en.alibaba.com

725 ms

152 ms

201 ms

header.css

header.css

176 ms

header.js

header.js

180 ms

97 ms

web-index.css

web-index.css

176 ms

web-index.css

web-index.css

175 ms

web-index.css

web-index.css

182 ms

web-index.css

web-index.css

177 ms

web-index.css

web-index.css

176 ms

284 ms

172 ms

index.js

index.js

175 ms

174 ms

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

454 ms

H3a333dbe2ad44cff8f326e26f0ccb4a9G.jpg

H3a333dbe2ad44cff8f326e26f0ccb4a9G.jpg

236 ms

H80fff25fbd7b4d8ca2d24431e43e31c4q.jpg_80x80.jpg

H80fff25fbd7b4d8ca2d24431e43e31c4q.jpg_80x80.jpg

238 ms

H6c352da9888e4059bceba90f95597158D.jpg_q80.jpg

H6c352da9888e4059bceba90f95597158D.jpg_q80.jpg

1178 ms

A5de037ef255542a0b6729ec6f603c9a78.jpg_350x350.jpg

A5de037ef255542a0b6729ec6f603c9a78.jpg_350x350.jpg

238 ms

H4a52216d41f344d0950b7521e6226567a.png_350x350.png

H4a52216d41f344d0950b7521e6226567a.png_350x350.png

148 ms

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

599 ms

56 ms

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

53 ms

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

55 ms

H56076352903348dfa970e1d477e7c3bd3.jpg

H56076352903348dfa970e1d477e7c3bd3.jpg

175 ms

H83edc0bed2bc4c0da0d9d1032e477923x.jpg

H83edc0bed2bc4c0da0d9d1032e477923x.jpg

272 ms

He5a1fab2412042b192ca50d8a9369a5cY.png

He5a1fab2412042b192ca50d8a9369a5cY.png

303 ms

H21fb999b32834b1f9400ee7b93f63a1bw.jpg

H21fb999b32834b1f9400ee7b93f63a1bw.jpg

2067 ms

H4fb1da17081041ef935a835ef3560ad4k.jpg

H4fb1da17081041ef935a835ef3560ad4k.jpg

272 ms

H34b66d85a2b44081b673f0bb590a29dak.png

H34b66d85a2b44081b673f0bb590a29dak.png

410 ms

H5eebecf43f5b4d8aae1e98b3b6b185098.jpg

H5eebecf43f5b4d8aae1e98b3b6b185098.jpg

459 ms

Hca2bc9f030f945d09839c0846e2ad448z.jpg

Hca2bc9f030f945d09839c0846e2ad448z.jpg

371 ms

H5b667ac58d2b4843a46be232944595e1S.jpg

H5b667ac58d2b4843a46be232944595e1S.jpg

564 ms

personTipsInfo.do

personTipsInfo.do

291 ms

awsc.js

awsc.js

139 ms

99 ms

roboto-regular.woff

roboto-regular.woff

330 ms

roboto-medium.woff

roboto-medium.woff

340 ms

roboto-light.woff

roboto-light.woff

350 ms

roboto-thin.woff

roboto-thin.woff

360 ms

roboto-bold.woff

roboto-bold.woff

370 ms

eg.js

eg.js

331 ms

icon-font.woff

icon-font.woff

251 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

100 ms

sc.globalxman.appscene

sc.globalxman.appscene

317 ms

et_n.js

et_n.js

20 ms

um.js

um.js

86 ms

footer.css

footer.css

235 ms

wu.json

wu.json

689 ms

light0.5x.png

light0.5x.png

28 ms

pages_version.html

pages_version.html

268 ms

defer-common.js

defer-common.js

269 ms

i.alicdn.com

i.alicdn.com

406 ms

index.js

index.js

46 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

7 ms

7.gif

7.gif

2 ms

index.js

index.js

25 ms

index.js

index.js

32 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

38 ms

baxiaCommon.js

baxiaCommon.js

24 ms

rp

rp

1524 ms

index.web.css

index.web.css

134 ms

index.web.js

index.web.js

141 ms

store-proxy.html

store-proxy.html

104 ms

countryCurrencyDataService

countryCurrencyDataService

206 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

87 ms

personRoleInfo.do

personRoleInfo.do

79 ms

notification.do

notification.do

180 ms

index.js

index.js

101 ms

availableSurveyQuery.json

availableSurveyQuery.json

187 ms

iconfont.woff

iconfont.woff

17 ms

iconfont.woff

iconfont.woff

42 ms

um.json

um.json

51 ms

getUmid.do

getUmid.do

7 ms

index.js

index.js

42 ms

index.css

index.css

23 ms

Accessibility Review

venztech.en.alibaba.com accessibility score

64

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Some elements have a [tabindex] value greater than 0

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

venztech.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

venztech.en.alibaba.com SEO score

79

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

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 Venztech.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 Venztech.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

venztech.en.alibaba.com

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