Access sundns.com. 域名注册|域名查询|域名申请|虚拟主机|企业邮箱|网站建设|云主机|网站安全证书|CA证书|尽在阳光互联

name

value

score

weighting

FCP (First Contentful Paint)

Value8.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.0 s

0/100

25%

SI (Speed Index)

Value16.5 s

0/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.017

100/100

15%

TTI (Time to Interactive)

Value9.1 s

33/100

10%

sundns.com

7130 ms

www.sundns.com

6200 ms

bootstrap.min.css

3792 ms

unslider.css

3384 ms

unslider-dots.css

3395 ms

Our browser made a total of 93 requests to load all elements on the main page. We found that 99% of them (92 requests) were addressed to the original Sundns.com, 1% (1 request) were made to Beian.gov.cn. The less responsive or slowest element that took the longest time to load (18.7 sec) belongs to the original domain Sundns.com.

Content Size

753.5 kB

After Optimization

534.3 kB

In fact, the total size of Sundns.com main page is 753.5 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 592.3 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 31.8 kB

Original 38.3 kB
After minification 32.7 kB
After compression 6.5 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 5.6 kB, which is 15% 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 31.8 kB or 83% of the original size.

Image Optimization

-15%

Potential reduce by 88.2 kB

Original 592.3 kB
After minification 504.1 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, Sundns needs image optimization as it can save up to 88.2 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 22.7 kB

Original 33.4 kB
After minification 29.1 kB
After compression 10.7 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 22.7 kB or 68% of the original size.

CSS Optimization

-85%

Potential reduce by 76.5 kB

Original 89.5 kB
After minification 63.7 kB
After compression 13.0 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. Sundns.com needs all CSS files to be minified and compressed as it can save up to 76.5 kB or 85% of the original size.

Requests Now

After Optimization

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sundns. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 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.

High

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

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

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

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 Sundns.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 Sundns.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

sundns.com

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

域名注册|域名查询|域名申请|虚拟主机|企业邮箱|网站建设|云主机|网站安全证书|CA证书|尽在阳光互联

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

sundns.com

www.sundns.com

bootstrap.min.css

unslider.css

unslider-dots.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

sundns.com

www.sundns.com

bootstrap.min.css

unslider.css

unslider-dots.css

main.css

animate.css

jquery.min.js

es5-shim.min.js

es5-sham.min.js

respond.min.js

new_roll.js

unslider-min.js

index.js

ghs.png

sundns_log.png

shop.png

user.png

phone.png

banner1_host.png

banner1_cloud.png

banner1_font.png

banner1_font2.png

banner1_r.png

banner1_kxy.png

hui_icon.png

new_yellow_icon.png

search_nav.png

cloud_host.png

products_host.png

cloud_serve.png

products_serve.png

cloud_mail.png

products_mail.png

tehui.png

products_tehui.png

sale.png

title_1.png

block_1.png

block_2.png

block_3.png

block_4.png

title_2.png