Access zx911.com. 上海华美医疗美容医院「官网」

zx911.com screenshot

24

Performance

Renders faster than
43% of other websites
46

Accessibility

Visual factors better than
that of 20% of websites
38

Best Practices

More advanced features
available than in
19% of websites
76

SEO

Google-friendlier than
35% of websites

First Response

993 ms

Resources Loaded

25.2 sec

Page Rendered

142 ms

zx911.com screenshot

About Website

Click here to check amazing Zx 911 content. Otherwise, check out these important facts you probably never knew about zx911.com

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Key Findings

We analyzed Zx911.com page load time and found that the first response time was 993 ms and then it took 25.3 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value29.5 s

0/100

25%

SI (Speed Index)

Value15.9 s

1/100

10%

TBT (Total Blocking Time)

Value720 ms

42/100

30%

CLS (Cumulative Layout Shift)

Value0.271

46/100

15%

TTI (Time to Interactive)

Value16.0 s

6/100

10%

zx911.com

993 ms

dedecms.css

420 ms

jquery-1.9.1.min.js

854 ms

dedeajax2.js

428 ms

j.js

696 ms

Our browser made a total of 206 requests to load all elements on the main page. We found that 96% of them (197 requests) were addressed to the original Zx911.com, 1% (2 requests) were made to Player.youku.com and 1% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (19.5 sec) relates to the external source Lxbjs.baidu.com.

Content Size

403.1 kB

After Optimization

125.2 kB

In fact, the total size of Zx911.com main page is 403.1 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. 20% of websites need less resources to load. HTML takes 160.9 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 130.9 kB

Original 160.9 kB
After minification 145.8 kB
After compression 29.9 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 130.9 kB or 81% of the original size.

Image Optimization

-3%

Potential reduce by 814 B

Original 24.9 kB
After minification 24.0 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. Zx 911 images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 87.8 kB

Original 141.8 kB
After minification 135.7 kB
After compression 54.0 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 87.8 kB or 62% of the original size.

CSS Optimization

-77%

Potential reduce by 58.4 kB

Original 75.6 kB
After minification 63.4 kB
After compression 17.3 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. Zx911.com needs all CSS files to be minified and compressed as it can save up to 58.4 kB or 77% of the original size.

Requests Now

25

After Optimization

9

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zx 911. 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 4 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 keyboard navigation in your application.

High

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

High

Heading elements are not in a sequentially-descending order

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

High

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

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

High

Registers an unload listener

Low

Detected JavaScript libraries

High

Uses deprecated APIs

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

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

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 Zx911.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 Zx911.com 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

zx911.com

Open Graph description is not detected on the main page of Zx 911. 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: