Tools & Wizards About Us
kexue.com screenshot

Report Summary

  • 57

    Performance

    Renders faster than
    73% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

kexue.com

首席收藏网 - 中文钱币收藏门户 - ShouXi.com - Chinese Numismatic Website

Page Load Speed

17.2 sec in total

First Response

757 ms

Resources Loaded

16.1 sec

Page Rendered

405 ms

kexue.com screenshot

About Website

Welcome to kexue.com homepage info - get ready to check Kexue best content for China right away, or after learning these important things about kexue.com

首席收藏(ShouXi.com)是全球领先的中文钱币收藏门户，在线提供及时、全面的钱币资讯、拍卖数据、论坛交流、品牌店铺、交易竞买、全球展会等综合服务；线下联合创办CICE北京、上海、广州，以及HKCS香港、MICS澳门国际钱币展销会，教育培训等交流活动。

Visit kexue.com

Key Findings

We analyzed Kexue.com page load time and found that the first response time was 757 ms and then it took 16.5 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.

Performance Metrics

kexue.com performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

8/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.009

100/100

15%

TTI (Time to Interactive)

Value6.4 s

59/100

10%

Network Requests Diagram

kexue.com

757 ms

www.shouxi.com

1069 ms

index_20200711.css

694 ms

style.css

711 ms

mm.css

696 ms

Our browser made a total of 155 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Kexue.com, 57% (89 requests) were made to Data.shouxi.com and 16% (25 requests) were made to Up.shouxi.com. The less responsive or slowest element that took the longest time to load (13 sec) relates to the external source Shouxi.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 514.1 kB (15%)

Content Size

3.5 MB

After Optimization

3.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kexue.com main page is 3.5 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. 25% of websites need less resources to load. Images take 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 87.4 kB

  • Original 106.3 kB
  • After minification 98.5 kB
  • After compression 18.9 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 87.4 kB or 82% of the original size.

Image Optimization

-13%

Potential reduce by 411.0 kB

  • Original 3.3 MB
  • After minification 2.9 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. Obviously, Kexue needs image optimization as it can save up to 411.0 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-5%

Potential reduce by 2.3 kB

  • Original 42.2 kB
  • After minification 42.2 kB
  • After compression 39.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-25%

Potential reduce by 13.4 kB

  • Original 52.4 kB
  • After minification 52.4 kB
  • After compression 39.0 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. Kexue.com needs all CSS files to be minified and compressed as it can save up to 13.4 kB or 25% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (11%)

Requests Now

153

After Optimization

136

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 153 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kexue. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

kexue.com

kexue.com

757 ms

www.shouxi.com

www.shouxi.com

1069 ms

index_20200711.css

index_20200711.css

694 ms

style.css

style.css

711 ms

mm.css

mm.css

696 ms

common.css

common.css

680 ms

style.css

style.css

904 ms

iconfont.css

iconfont.css

680 ms

index.php

index.php

441 ms

index.php

index.php

449 ms

index.php

index.php

449 ms

special_ajax.php

special_ajax.php

953 ms

index.php

index.php

454 ms

wx.png

wx.png

933 ms

index.php

index.php

243 ms

16312937.js

16312937.js

719 ms

jquery-1.11.3.min.js

jquery-1.11.3.min.js

1320 ms

script.js

script.js

752 ms

common.js

common.js

736 ms

calendar_index.js

calendar_index.js

946 ms

index_login.js

index_login.js

964 ms

shop_index.js

shop_index.js

974 ms

trade_index.js

trade_index.js

997 ms

frame.css

frame.css

520 ms

calendar.css

calendar.css

696 ms

frame.css

frame.css

733 ms

frame.css

frame.css

727 ms

calendar.css

calendar.css

730 ms

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660 ms

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1765 ms

ico.png

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241 ms

headerbg.jpg

headerbg.jpg

272 ms

logo1.png

logo1.png

248 ms

nav.png

nav.png

226 ms

hot.png

hot.png

225 ms

bg.png

bg.png

301 ms

bg-swiper-newshomepage.png

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719 ms

homepage-bgHeadline-index.png

homepage-bgHeadline-index.png

466 ms

homepage-bgHeadline01.png

homepage-bgHeadline01.png

480 ms

icon-user.png

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486 ms

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512 ms

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548 ms

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751 ms

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1662 ms

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1964 ms

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1993 ms

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1991 ms

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1965 ms

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8721 ms

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1917 ms

ajax

ajax

1169 ms

ajax

ajax

722 ms

index_data

index_data

676 ms

index_data

index_data

734 ms

index_data

index_data

677 ms

index_data

index_data

689 ms

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1877 ms

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2079 ms

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2058 ms

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2055 ms

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2104 ms

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2035 ms

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2100 ms

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2112 ms

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2108 ms

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2103 ms

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2084 ms

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2006 ms

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2144 ms

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2123 ms

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726 ms

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912 ms

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749 ms

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918 ms

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920 ms

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727 ms

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996 ms

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995 ms

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989 ms

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1167 ms

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1220 ms

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1281 ms

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1464 ms

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1398 ms

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1479 ms

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1869 ms

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1539 ms

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1549 ms

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2019 ms

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1959 ms

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1681 ms

Accessibility Review

kexue.com 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.

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

Links do not have a discernible name

Best Practices

kexue.com best practices score

75

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

kexue.com SEO score

69

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 Kexue.com 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 Kexue.com 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

kexue.com

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