Access sichem.cn. 沈阳网站建设_沈阳网站制作_沈阳小程序开发_app软件定制-沈阳示剑网络科技股份有限公司

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value10.9 s

0/100

25%

SI (Speed Index)

Value17.3 s

0/100

10%

TBT (Total Blocking Time)

Value620 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.151

75/100

15%

TTI (Time to Interactive)

Value13.2 s

12/100

10%

sichem.cn

1524 ms

www.sichem.cn

15680 ms

bootstrap.min.css

11546 ms

common.css

7565 ms

head.css

7639 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 82% of them (40 requests) were addressed to the original Sichem.cn, 6% (3 requests) were made to Hm.baidu.com and 2% (1 request) were made to S11.cnzz.com. The less responsive or slowest element that took the longest time to load (20.5 sec) belongs to the original domain Sichem.cn.

Content Size

748.8 kB

After Optimization

234.6 kB

In fact, the total size of Sichem.cn main page is 748.8 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. Javascripts take 351.4 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 68.1 kB

Original 81.1 kB
After minification 65.4 kB
After compression 13.0 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 15.6 kB, which is 19% 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 68.1 kB or 84% of the original size.

Image Optimization

-25%

Potential reduce by 29.0 kB

Original 114.7 kB
After minification 85.7 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. Obviously, Sichem needs image optimization as it can save up to 29.0 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 247.2 kB

Original 351.4 kB
After minification 350.4 kB
After compression 104.2 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 247.2 kB or 70% of the original size.

CSS Optimization

-84%

Potential reduce by 169.9 kB

Original 201.7 kB
After minification 174.1 kB
After compression 31.8 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. Sichem.cn needs all CSS files to be minified and compressed as it can save up to 169.9 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sichem. 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 from 8 to 1 for CSS 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 experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

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

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

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

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 Sichem.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 Sichem.cn 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

sichem.cn

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

沈阳网站建设_沈阳网站制作_沈阳小程序开发_app软件定制-沈阳示剑网络科技股份有限公司

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

sichem.cn

www.sichem.cn

bootstrap.min.css

common.css

head.css

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

sichem.cn

www.sichem.cn

bootstrap.min.css

common.css

head.css

foot.css

index.css

jquery.min.js

bootstrap.min.js

js.js

jquery.lazyload.min.js

backtop.js

jquery.slides.min.js

fullwidth.css

settings.css

video815.css

video-js.css

video.js

jquery.themepunch.revolution.min.js

img.php

wantmenu_bg.png

1446874555790153.jpg

1446877024136012.jpg

1446876817102188.jpg

1436714889102510.jpg

1436714189722363.jpg

1436860352895976.jpg

img.php

img.php

img.php

img.php

img.php

TB1VMruGpXXXXabXpXXM7dYGFXX-38-36.png

TB1zQbsGpXXXXX1XFXXM7dYGFXX-38-36.png

img.php

icon_close.png

T1XGvCFlVaXXbcg1HR-585-167.png

T1RZNlFS8bXXc34WDc-26-21.gif

glyphicons-halflings-regular.woff

z_stat.php

stat.htm

core.php

9.gif