Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

vantech.en.alibaba.com

Vantech Precision Technology Co., Ltd. - Shrapnel, shim

Page Load Speed

3.7 sec in total

First Response

211 ms

Resources Loaded

3.1 sec

Page Rendered

462 ms

vantech.en.alibaba.com screenshot

About Website

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

Vantech Precision Technology Co., Ltd., Experts in Manufacturing and Exporting Shrapnel, shim and 0 more Products.

Visit vantech.en.alibaba.com

Key Findings

We analyzed Vantech.en.alibaba.com page load time and found that the first response time was 211 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

vantech.en.alibaba.com performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value16.2 s

0/100

10%

TBT (Total Blocking Time)

Value44,250 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.305

39/100

15%

TTI (Time to Interactive)

Value57.6 s

0/100

10%

Network Requests Diagram

vantech.en.alibaba.com

211 ms

vantech.en.alibaba.com

870 ms

105 ms

web-index.css

95 ms

web-index.css

95 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 Vantech.en.alibaba.com, 38% (28 requests) were made to S.alicdn.com and 23% (17 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source S.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (50%)

Content Size

2.6 MB

After Optimization

1.3 MB

In fact, the total size of Vantech.en.alibaba.com main page is 2.6 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 328.6 kB

  • Original 417.5 kB
  • After minification 413.3 kB
  • After compression 88.9 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 328.6 kB or 79% of the original size.

Image Optimization

-10%

Potential reduce by 103.2 kB

  • Original 1.1 MB
  • After minification 965.5 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. Vantech En Alibaba images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 399.0 kB

  • Original 630.4 kB
  • After minification 630.4 kB
  • After compression 231.4 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 399.0 kB or 63% of the original size.

CSS Optimization

-94%

Potential reduce by 492.4 kB

  • Original 525.0 kB
  • After minification 194.4 kB
  • After compression 32.5 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. Vantech.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 492.4 kB or 94% of the original size.

Requests Breakdown

Number of requests can be reduced by 45 (69%)

Requests Now

65

After Optimization

20

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vantech 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 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

vantech.en.alibaba.com accessibility score

68

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

vantech.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

vantech.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 Vantech.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 Vantech.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

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