Access zxbairui.com. 电镜铜网，电镜耗材，碳支持膜-北京市中兴百瑞科技有限公司

name

value

score

weighting

FCP (First Contentful Paint)

Value7.3 s

1/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value30.2 s

0/100

10%

TBT (Total Blocking Time)

Value400 ms

68/100

30%

CLS (Cumulative Layout Shift)

Value0.188

65/100

15%

TTI (Time to Interactive)

Value20.1 s

2/100

10%

zxbairui.com

3284 ms

main.css

492 ms

AutoChangePhoto.js

668 ms

qq.css

402 ms

ServiceQQ.htm

485 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 7% of them (5 requests) were addressed to the original Zxbairui.com, 59% (40 requests) were made to Zxbairui.com.hi.72la.com and 24% (16 requests) were made to Qiao.baidu.com. The less responsive or slowest element that took the longest time to load (12.7 sec) relates to the external source Zxbairui.com.hi.72la.com.

Content Size

206.7 kB

After Optimization

130.1 kB

In fact, the total size of Zxbairui.com main page is 206.7 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. 25% of websites need less resources to load. Images take 119.2 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 33.5 kB

Original 43.8 kB
After minification 33.6 kB
After compression 10.3 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 23% 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 33.5 kB or 76% of the original size.

Image Optimization

-6%

Potential reduce by 7.3 kB

Original 119.2 kB
After minification 111.9 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. Zxbairui images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 664 B

Original 1.1 kB
After minification 899 B
After compression 396 B

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 664 B or 63% of the original size.

CSS Optimization

-82%

Potential reduce by 35.1 kB

Original 42.7 kB
After minification 32.0 kB
After compression 7.5 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. Zxbairui.com needs all CSS files to be minified and compressed as it can save up to 35.1 kB or 82% of the original size.

Requests Now

After Optimization

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zxbairui. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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 experience of reading tabular or list data using assistive technology, like a screen reader.

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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 semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zxbairui.com 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 Zxbairui.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

zxbairui.com

Open Graph description is not detected on the main page of Zxbairui. 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

电镜铜网 ，电镜耗材，碳支持膜-北京市中兴百瑞科技有限公司

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

zxbairui.com

main.css

AutoChangePhoto.js

qq.css

ServiceQQ.htm

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

zxbairui.com

main.css

AutoChangePhoto.js

qq.css

ServiceQQ.htm

h.js

nav2.jpg

logo.jpg

headerbg.jpg

nav1.jpg

nav3.jpg

nav4.jpg

nav5.jpg

nav6.jpg

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more.gif

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img4.gif

title4.jpg

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img5.jpg

navbg.jpg

searchbg.jpg

inputbg.jpg

bg.jpg

title.jpg

line.jpg

arrow.gif

title1.gif

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电镜铜网，电镜耗材，碳支持膜-北京市中兴百瑞科技有限公司