Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 46

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

ac.hea.cn

空调频道-家电网 ® HEA.CN 最具影响力的科技与投资门户_家用空调,壁挂式空调,立柜式空调,挂机,柜机,变频空调,无氟空调,节能空调,什么空调最好,空调匹数选择,什么牌子空调最好,怎么选购空调

Page Load Speed

60.4 sec in total

First Response

10.7 sec

Resources Loaded

48.9 sec

Page Rendered

894 ms

ac.hea.cn screenshot

About Website

Visit ac.hea.cn now to see the best up-to-date Ac HEA content for China and also check out these interesting facts you probably never knew about ac.hea.cn

专业的空调,空调频道,提供柜机,挂机,壁挂式空调,立柜式空调,变频空调,无氟空调,节能空调,报价,行情,评测,导购,电商网购

Visit ac.hea.cn

Key Findings

We analyzed Ac.hea.cn page load time and found that the first response time was 10.7 sec and then it took 49.8 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. Unfortunately, there were 14 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

ac.hea.cn performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

36/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value12.5 s

3/100

10%

TBT (Total Blocking Time)

Value360 ms

73/100

30%

CLS (Cumulative Layout Shift)

Value0.022

100/100

15%

TTI (Time to Interactive)

Value15.3 s

7/100

10%

Network Requests Diagram

ac.hea.cn

10662 ms

p_base.css

5859 ms

channel4.0.css

5872 ms

jquery-1.7.1.min.js

19977 ms

slides.min.jquery.js

6319 ms

Our browser made a total of 108 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Ac.hea.cn, 19% (21 requests) were made to Img.hea.cn and 15% (16 requests) were made to Upload.hea.cn. The less responsive or slowest element that took the longest time to load (20 sec) relates to the external source Img.hea.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 312.7 kB (19%)

Content Size

1.6 MB

After Optimization

1.3 MB

In fact, the total size of Ac.hea.cn main page is 1.6 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. 45% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 85.9 kB

  • Original 105.1 kB
  • After minification 86.5 kB
  • After compression 19.2 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 18.6 kB, which is 18% 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 85.9 kB or 82% of the original size.

Image Optimization

-8%

Potential reduce by 96.5 kB

  • Original 1.3 MB
  • After minification 1.2 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. Ac HEA images are well optimized though.

JavaScript Optimization

-47%

Potential reduce by 101.2 kB

  • Original 216.4 kB
  • After minification 212.0 kB
  • After compression 115.1 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 101.2 kB or 47% of the original size.

CSS Optimization

-76%

Potential reduce by 29.1 kB

  • Original 38.2 kB
  • After minification 34.9 kB
  • After compression 9.1 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. Ac.hea.cn needs all CSS files to be minified and compressed as it can save up to 29.1 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 45 (49%)

Requests Now

91

After Optimization

46

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ac HEA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

ac.hea.cn accessibility score

51

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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.

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

<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

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

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>).

Best Practices

ac.hea.cn best practices score

46

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

General

Impact

Issue

High

Registers an unload listener

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

ac.hea.cn SEO score

58

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

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 Ac.hea.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 Ac.hea.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

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