Report Summary

  • 56

    Performance

    Renders faster than
    73% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

zx.bjmemc.com.cn

北京空气质量

Page Load Speed

11.8 sec in total

First Response

5 sec

Resources Loaded

6.6 sec

Page Rendered

94 ms

zx.bjmemc.com.cn screenshot

About Website

Visit zx.bjmemc.com.cn now to see the best up-to-date Zx Bjmemc content for China and also check out these interesting facts you probably never knew about zx.bjmemc.com.cn

Visit zx.bjmemc.com.cn

Key Findings

We analyzed Zx.bjmemc.com.cn page load time and found that the first response time was 5 sec and then it took 6.7 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

zx.bjmemc.com.cn performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value9.3 s

1/100

25%

SI (Speed Index)

Value6.0 s

47/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value6.0 s

64/100

10%

Network Requests Diagram

zx.bjmemc.com.cn

5041 ms

Silverlight.js

4001 ms

SLMedallion_ENU.png

65 ms

Our browser made a total of 3 requests to load all elements on the main page. We found that 67% of them (2 requests) were addressed to the original Zx.bjmemc.com.cn, 33% (1 request) were made to Download.microsoft.com. The less responsive or slowest element that took the longest time to load (5 sec) belongs to the original domain Zx.bjmemc.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 13.6 kB (52%)

Content Size

26.0 kB

After Optimization

12.4 kB

In fact, the total size of Zx.bjmemc.com.cn main page is 26.0 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. HTML takes 18.3 kB which makes up the majority of the site volume.

HTML Optimization

-46%

Potential reduce by 8.4 kB

  • Original 18.3 kB
  • After minification 18.2 kB
  • After compression 9.9 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. 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 8.4 kB or 46% of the original size.

JavaScript Optimization

-68%

Potential reduce by 5.2 kB

  • Original 7.7 kB
  • After minification 7.7 kB
  • After compression 2.4 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 5.2 kB or 68% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

1

After Optimization

1

The browser has sent 1 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zx Bjmemc. According to our analytics all requests are already optimized.

Accessibility Review

zx.bjmemc.com.cn accessibility score

66

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.

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

Best Practices

zx.bjmemc.com.cn best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

zx.bjmemc.com.cn SEO score

58

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

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 Zx.bjmemc.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 Zx.bjmemc.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

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