Tools & Wizards About Us

Report Summary

  • 73

    Performance

    Renders faster than
    82% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

em-glass.cn

Page Load Speed

7.8 sec in total

First Response

2.1 sec

Resources Loaded

4.3 sec

Page Rendered

1.3 sec

About Website

Welcome to em-glass.cn homepage info - get ready to check Em Glass best content right away, or after learning these important things about em-glass.cn

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Visit em-glass.cn

Key Findings

We analyzed Em-glass.cn page load time and found that the first response time was 2.1 sec and then it took 5.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

em-glass.cn performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

91/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value890 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.1 s

86/100

10%

Network Requests Diagram

em-glass.cn

2096 ms

index.html

669 ms

tj.js

136 ms

baidu.js

140 ms

style.css

232 ms

Our browser made a total of 25 requests to load all elements on the main page. We found that 92% of them (23 requests) were addressed to the original Em-glass.cn, 4% (1 request) were made to Hm.baidu.com and 4% (1 request) were made to Push.zhanzhang.baidu.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Em-glass.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 171.5 kB (44%)

Content Size

385.8 kB

After Optimization

214.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Em-glass.cn main page is 385.8 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. 20% of websites need less resources to load. HTML takes 220.7 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 156.8 kB

  • Original 220.7 kB
  • After minification 218.5 kB
  • After compression 64.0 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 156.8 kB or 71% of the original size.

Image Optimization

-4%

Potential reduce by 4.2 kB

  • Original 107.4 kB
  • After minification 103.2 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. Em Glass images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 9.9 kB

  • Original 46.6 kB
  • After minification 46.5 kB
  • After compression 36.7 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 9.9 kB or 21% of the original size.

CSS Optimization

-6%

Potential reduce by 670 B

  • Original 11.1 kB
  • After minification 11.1 kB
  • After compression 10.4 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. Em-glass.cn has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 6 (27%)

Requests Now

22

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Em Glass. 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 as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

em-glass.cn accessibility score

85

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.

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

em-glass.cn best practices score

67

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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

em-glass.cn SEO score

88

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

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Em-glass.cn can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Chinese. Our system also found out that Em-glass.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 Em Glass. 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: