Report Summary

  • 62

    Performance

    Renders faster than
    77% of other websites

  • 31

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

libattery.net

锂电中国_锂电网_锂电产业链价值门户

Page Load Speed

9.1 sec in total

First Response

2.2 sec

Resources Loaded

6.6 sec

Page Rendered

326 ms

libattery.net screenshot

About Website

Click here to check amazing Libattery content. Otherwise, check out these important facts you probably never knew about libattery.net

锂电中国是专注于锂离子电池、动力电池、储能电池领域的集行业资讯、产业研究、展览会议、专业网络及新媒体于一体的全方位锂电产业链与资本整合价值服务平台。提供锂电池行业和锂电相关市场资讯,锂电池企业动向,新产品,锂电池价格行情,储能与新能源汽车市场分析。

Visit libattery.net

Key Findings

We analyzed Libattery.net page load time and found that the first response time was 2.2 sec and then it took 6.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

libattery.net performance score

62

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

4/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value170 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.7 s

80/100

10%

Network Requests Diagram

libattery.net

2195 ms

index2.css

497 ms

jquery.js

759 ms

login.js

500 ms

search.js

502 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 97% of them (66 requests) were addressed to the original Libattery.net, 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.6 sec) belongs to the original domain Libattery.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 351.5 kB (32%)

Content Size

1.1 MB

After Optimization

733.8 kB

In fact, the total size of Libattery.net main page is 1.1 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. 30% of websites need less resources to load. Images take 904.4 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 52.6 kB

  • Original 67.8 kB
  • After minification 65.6 kB
  • After compression 15.3 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. 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 52.6 kB or 78% of the original size.

Image Optimization

-26%

Potential reduce by 231.6 kB

  • Original 904.4 kB
  • After minification 672.8 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, Libattery needs image optimization as it can save up to 231.6 kB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-55%

Potential reduce by 51.1 kB

  • Original 93.6 kB
  • After minification 93.1 kB
  • After compression 42.4 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 51.1 kB or 55% of the original size.

CSS Optimization

-83%

Potential reduce by 16.1 kB

  • Original 19.4 kB
  • After minification 16.9 kB
  • After compression 3.3 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. Libattery.net needs all CSS files to be minified and compressed as it can save up to 16.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (24%)

Requests Now

66

After Optimization

50

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Libattery. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

libattery.net accessibility score

31

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

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

Impact

Issue

High

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

Names and labels

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.

Impact

Issue

High

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

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.

Best Practices

libattery.net best practices score

50

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

libattery.net SEO score

62

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

High

Document uses plugins

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 Libattery.net 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 Libattery.net 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

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