Tools & Wizards About Us
shop.kongfz.com screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

shop.kongfz.com

书店区_网上书店_打折书店_免费开书店_加盟书店_孔夫子旧书网：国内专业的古旧书交易平台

Page Load Speed

12 sec in total

First Response

1.1 sec

Resources Loaded

10 sec

Page Rendered

886 ms

shop.kongfz.com screenshot

About Website

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

孔夫子旧书网是国内领先的古旧书交易平台，汇集全国各地13000家网上书店，50000家书摊，展示多达9000万种书籍；大量极具收藏价值的古旧珍本（明清、民国古籍善本，珍品期刊，名人墨迹，民国珍本，绝版书等）在孔网展示与交易，吸引了大量的学者、研究人员和藏书人长时间在线关注并参与。找图书网站、在网上买书、开网上书店卖书，首选孔夫子旧书网。

Visit shop.kongfz.com

Key Findings

We analyzed Shop.kongfz.com page load time and found that the first response time was 1.1 sec and then it took 10.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

shop.kongfz.com performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value16.8 s

0/100

10%

TBT (Total Blocking Time)

Value250 ms

84/100

30%

CLS (Cumulative Layout Shift)

Value0.476

18/100

15%

TTI (Time to Interactive)

Value11.3 s

19/100

10%

Network Requests Diagram

shop.kongfz.com

1100 ms

1451 ms

shop.css

471 ms

index.css

476 ms

511 ms

Our browser made a total of 135 requests to load all elements on the main page. We found that 17% of them (23 requests) were addressed to the original Shop.kongfz.com, 56% (76 requests) were made to Kfzimg.com and 10% (14 requests) were made to Shopimg.kongfz.com.cn. The less responsive or slowest element that took the longest time to load (7.7 sec) relates to the external source Kfzimg.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 405.4 kB (47%)

Content Size

858.1 kB

After Optimization

452.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Shop.kongfz.com main page is 858.1 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. 45% of websites need less resources to load. Images take 409.8 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 321.7 kB

  • Original 360.7 kB
  • After minification 309.4 kB
  • After compression 39.0 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. This page needs HTML code to be minified as it can gain 51.4 kB, which is 14% 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 321.7 kB or 89% of the original size.

Image Optimization

-3%

Potential reduce by 13.6 kB

  • Original 409.8 kB
  • After minification 396.1 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. Shop Kongfz images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 37.5 kB

  • Original 48.2 kB
  • After minification 39.2 kB
  • After compression 10.7 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 37.5 kB or 78% of the original size.

CSS Optimization

-83%

Potential reduce by 32.6 kB

  • Original 39.4 kB
  • After minification 35.5 kB
  • After compression 6.8 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. Shop.kongfz.com needs all CSS files to be minified and compressed as it can save up to 32.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (12%)

Requests Now

134

After Optimization

118

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 134 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Shop Kongfz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

shop.kongfz.com

shop.kongfz.com

1100 ms

1451 ms

shop.css

shop.css

471 ms

index.css

index.css

476 ms

511 ms

1437 ms

1452 ms

252 ms

421 ms

shop_index.js

shop_index.js

421 ms

shop_index.js

shop_index.js

477 ms

logo2.gif

logo2.gif

252 ms

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260 ms

slider_tan.jpg

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1173 ms

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1862 ms

slider_pm.jpg

slider_pm.jpg

694 ms

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test_banner2.jpg

237 ms

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line_array.gif

227 ms

topbar.gif

topbar.gif

451 ms

ico_mobile.png

ico_mobile.png

454 ms

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top_app4.gif

472 ms

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417 ms

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408 ms

banner_ico_bg.png

banner_ico_bg.png

439 ms

red3.gif

red3.gif

643 ms

orange3.gif

orange3.gif

662 ms

shop_ico.gif

shop_ico.gif

689 ms

btn_bg.gif

btn_bg.gif

860 ms

nav_line.gif

nav_line.gif

414 ms

nav_bg2.gif

nav_bg2.gif

417 ms

foot.gif

foot.gif

431 ms

footer.gif

footer.gif

610 ms

getRecommendItems

getRecommendItems

679 ms

listCart

listCart

723 ms

btns.gif

btns.gif

388 ms

hm.js

hm.js

1713 ms

hm.js

hm.js

1386 ms

hm.gif

hm.gif

331 ms

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hm.gif

1143 ms

imNotice.js

imNotice.js

471 ms

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socket.io.min.js

477 ms

489 ms

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488 ms

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getUserRealOnlineState

getUserRealOnlineState

242 ms

Accessibility Review

shop.kongfz.com accessibility score

45

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

shop.kongfz.com best practices score

58

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

shop.kongfz.com SEO score

85

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

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

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 Shop.kongfz.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 Shop.kongfz.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

shop.kongfz.com

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