Access vicagroup.com.cn. 北京大伟嘉生物技术股份有限公司

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value23.8 s

0/100

25%

SI (Speed Index)

Value35.2 s

0/100

10%

TBT (Total Blocking Time)

Value1,790 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value16.4 s

5/100

10%

vicagroup.com.cn

5201 ms

index.css

1291 ms

jquery.min.js

3924 ms

lrtk.js

1073 ms

2016114164113.jpg

5965 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 84% of them (63 requests) were addressed to the original Vicagroup.com.cn, 8% (6 requests) were made to Bdimg.share.baidu.com and 1% (1 request) were made to S108.cnzz.com. The less responsive or slowest element that took the longest time to load (20.5 sec) belongs to the original domain Vicagroup.com.cn.

Content Size

242.1 kB

After Optimization

104.8 kB

In fact, the total size of Vicagroup.com.cn main page is 242.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Javascripts take 101.5 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 53.9 kB

Original 64.8 kB
After minification 54.6 kB
After compression 10.9 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. This page needs HTML code to be minified as it can gain 10.2 kB, which is 16% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 53.9 kB or 83% of the original size.

Image Optimization

-8%

Potential reduce by 4.5 kB

Original 57.2 kB
After minification 52.7 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. Vicagroup images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 65.0 kB

Original 101.5 kB
After minification 101.5 kB
After compression 36.6 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 65.0 kB or 64% of the original size.

CSS Optimization

-75%

Potential reduce by 13.9 kB

Original 18.5 kB
After minification 15.9 kB
After compression 4.7 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. Vicagroup.com.cn needs all CSS files to be minified and compressed as it can save up to 13.9 kB or 75% of the original size.

Requests Now

After Optimization

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vicagroup. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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.

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

ARIA IDs are not unique

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

robots.txt is not valid

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vicagroup.com.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Vicagroup.com.cn main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

vicagroup.com.cn

Open Graph description is not detected on the main page of Vicagroup. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks:

Report Summary

Performance

Accessibility

Best Practices

SEO

北京大伟嘉生物技术股份有限公司

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

vicagroup.com.cn

index.css

jquery.min.js

lrtk.js

2016114164113.jpg

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

vicagroup.com.cn

index.css

jquery.min.js

lrtk.js

2016114164113.jpg

2016114164040.jpg

mian_08.gif

e.jpg

weijia_108.jpg

weijia_113.jpg

weijia_112.jpg

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stat.php

weijia_110.jpg

icp.jpg

head_bj.gif

shell_v2.js

menubg2.gif

menubg1.gif

menubg3.gif

weijia_107.jpg

weijia_111.jpg

weijia_14.jpg

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