Tools & Wizards About Us

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

shelfs.com.cn

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Page Load Speed

6.8 sec in total

First Response

1.7 sec

Resources Loaded

4.5 sec

Page Rendered

500 ms

About Website

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

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Visit shelfs.com.cn

Key Findings

We analyzed Shelfs.com.cn page load time and found that the first response time was 1.7 sec and then it took 5 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

shelfs.com.cn performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value8.5 s

2/100

25%

SI (Speed Index)

Value14.1 s

1/100

10%

TBT (Total Blocking Time)

Value250 ms

84/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

shelfs.com.cn

1738 ms

iplookup.php

2143 ms

data.js

71 ms

z_stat.php

1099 ms

shelfs.com.cn

80 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 10% of them (3 requests) were addressed to the original Shelfs.com.cn, 29% (9 requests) were made to Ww2.sinaimg.cn and 23% (7 requests) were made to Ww4.sinaimg.cn. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Int.dpool.sina.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 43.9 kB (7%)

Content Size

634.6 kB

After Optimization

590.6 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Shelfs.com.cn main page is 634.6 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. 30% of websites need less resources to load. Images take 605.4 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 12.2 kB

  • Original 18.4 kB
  • After minification 18.3 kB
  • After compression 6.2 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. 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 12.2 kB or 66% of the original size.

Image Optimization

-4%

Potential reduce by 24.9 kB

  • Original 605.4 kB
  • After minification 580.5 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. Shelfs images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 6.9 kB

  • Original 10.8 kB
  • After minification 10.8 kB
  • After compression 3.9 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 6.9 kB or 64% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (10%)

Requests Now

30

After Optimization

27

  • AJAX
  • Images
  • JavaScript

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Shelfs. 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.

Network Requests Diagram

Accessibility Review

shelfs.com.cn accessibility score

93

Accessibility Issues

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

Best Practices

shelfs.com.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

shelfs.com.cn SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Shelfs.com.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) and no language is claimed in <html> or <meta> tags either. Our system also found out that Shelfs.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 Shelfs. 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: