Tools & Wizards About Us
nopcn.com screenshot

Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 55

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

nopcn.com

nopCN - 全球领先的 ASP.NET Core 开源电商系统中文社区

Page Load Speed

5.3 sec in total

First Response

515 ms

Resources Loaded

4 sec

Page Rendered

740 ms

nopcn.com screenshot

About Website

Welcome to nopcn.com homepage info - get ready to check NopCN best content right away, or after learning these important things about nopcn.com

nopCN 是 nopCommerce 在中国的官方中文社区，提供汉化版下载、插件开发、模板设计及企业级商业支持。

Visit nopcn.com

Key Findings

We analyzed Nopcn.com page load time and found that the first response time was 515 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

nopcn.com performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.7 s

68/100

10%

Network Requests Diagram

nopcn.com

515 ms

www.nopcn.com

661 ms

sites.min.css

887 ms

sites.js

431 ms

bootstrap.min.css

248 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 50% of them (12 requests) were addressed to the original Nopcn.com, 25% (6 requests) were made to Cdn.staticfile.net and 21% (5 requests) were made to Cdn.staticfile.org. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Hm.baidu.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 86.4 kB (21%)

Content Size

421.0 kB

After Optimization

334.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nopcn.com main page is 421.0 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. 35% of websites need less resources to load. Images take 352.4 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 14.4 kB

  • Original 19.3 kB
  • After minification 15.6 kB
  • After compression 4.9 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. This page needs HTML code to be minified as it can gain 3.7 kB, which is 19% 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 14.4 kB or 75% of the original size.

Image Optimization

-18%

Potential reduce by 63.2 kB

  • Original 352.4 kB
  • After minification 289.2 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. Obviously, NopCN needs image optimization as it can save up to 63.2 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-34%

Potential reduce by 346 B

  • Original 1.0 kB
  • After minification 1.0 kB
  • After compression 666 B

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 346 B or 34% of the original size.

CSS Optimization

-17%

Potential reduce by 8.4 kB

  • Original 48.3 kB
  • After minification 48.3 kB
  • After compression 39.9 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. Nopcn.com needs all CSS files to be minified and compressed as it can save up to 8.4 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (25%)

Requests Now

16

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NopCN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

nopcn.com

nopcn.com

515 ms

www.nopcn.com

www.nopcn.com

661 ms

sites.min.css

sites.min.css

887 ms

sites.js

sites.js

431 ms

bootstrap.min.css

bootstrap.min.css

248 ms

font-awesome.min.css

font-awesome.min.css

257 ms

popper.min.js

popper.min.js

250 ms

bootstrap.min.js

bootstrap.min.js

251 ms

jquery.min.js

jquery.min.js

262 ms

bootstrap.min.css

bootstrap.min.css

519 ms

popper.min.js

popper.min.js

525 ms

bootstrap.min.js

bootstrap.min.js

533 ms

font-awesome.min.css

font-awesome.min.css

520 ms

jquery.min.js

jquery.min.js

524 ms

logo.png

logo.png

436 ms

header-2.jpg

header-2.jpg

845 ms

blue-1.png

blue-1.png

619 ms

blue-2.png

blue-2.png

841 ms

gitee.png

gitee.png

431 ms

QR-sw.jpg

QR-sw.jpg

640 ms

QR-js.jpg

QR-js.jpg

642 ms

QR-gzh.jpg

QR-gzh.jpg

859 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

14 ms

hm.js

hm.js

1142 ms

Accessibility Review

nopcn.com accessibility score

55

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

nopcn.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

nopcn.com SEO score

82

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nopcn.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Nopcn.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

nopcn.com

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