Access escn.com.cn. 中国储能网（www.escn.com.cn)是中国储能产业第一门户网站

escn.com.cn screenshot

28

Performance

Renders faster than
47% of other websites
61

Accessibility

Visual factors better than
that of 27% of websites
67

Best Practices

More advanced features
available than in
24% of websites
54

SEO

Google-friendlier than
19% of websites

First Response

12.2 sec

Resources Loaded

73.4 sec

Page Rendered

2.3 sec

escn.com.cn screenshot

About Website

Click here to check amazing Es Cn content for China. Otherwise, check out these important facts you probably never knew about escn.com.cn

中国储能网（www.escn.com.cn)是中国储能产业第一门户网站！中国储能网力求追踪储能产业发展的最新动态，以全面深入独特的视角洞悉储能产业的发展，引导中国储能产业发展的舆论方向。中国储能网(www.escn.com.cn) 创办于2010年，是国内外储能领域唯一专业新闻门户网站。从上线之日起，中国储能网就及时、准确、全面地发布国家发改委、国资委、电监会电力宏观产业政策信息，突出报道国家电网...

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Key Findings

We analyzed Escn.com.cn page load time and found that the first response time was 12.2 sec and then it took 75.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 4 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

78/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value7.2 s

30/100

10%

TBT (Total Blocking Time)

Value1,390 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0.348

32/100

15%

TTI (Time to Interactive)

Value5.0 s

77/100

10%

escn.com.cn

12180 ms

indexstyle.css

3409 ms

jquery-1.3.2.min.js

3713 ms

jquery.KinSlideshow-1.2.1.min.js

1112 ms

base.js

1085 ms

Our browser made a total of 275 requests to load all elements on the main page. We found that all of those requests were addressed to Escn.com.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (20.3 sec) belongs to the original domain Escn.com.cn.

Content Size

7.0 MB

After Optimization

6.1 MB

In fact, the total size of Escn.com.cn main page is 7.0 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 65% of websites need less resources to load. Images take 6.5 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 282.7 kB

Original 329.6 kB
After minification 203.2 kB
After compression 46.9 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 126.5 kB, which is 38% 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 282.7 kB or 86% of the original size.

Image Optimization

-7%

Potential reduce by 465.4 kB

Original 6.5 MB
After minification 6.0 MB

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. Es Cn images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 63.5 kB

Original 90.3 kB
After minification 79.6 kB
After compression 26.8 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 63.5 kB or 70% of the original size.

CSS Optimization

-81%

Potential reduce by 45.9 kB

Original 56.9 kB
After minification 50.7 kB
After compression 11.0 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. Escn.com.cn needs all CSS files to be minified and compressed as it can save up to 45.9 kB or 81% of the original size.

Requests Now

270

After Optimization

266

The browser has sent 270 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Es Cn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts 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 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

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>).

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

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

High

Links are not crawlable

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

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 Escn.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 Escn.com.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

escn.com.cn

Open Graph description is not detected on the main page of Es Cn. 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: