Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

jcnsolar.com

Solar Panels,Solar Power System,Movable Power Source,Solar Charger - Shenzhen JCN New Energy Technology Co., LTD

Page Load Speed

12.1 sec in total

First Response

1.8 sec

Resources Loaded

9.5 sec

Page Rendered

840 ms

jcnsolar.com screenshot

About Website

Click here to check amazing JCN Solar content. Otherwise, check out these important facts you probably never knew about jcnsolar.com

Shenzhen JCN New Energy Technology Co., limited, it is a professional manufacturer engaged in the R&D, sale and service of solar PV module,solar controller, solar power system, solarlantern, solar str...

Visit jcnsolar.com

Key Findings

We analyzed Jcnsolar.com page load time and found that the first response time was 1.8 sec and then it took 10.3 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

jcnsolar.com performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value16.3 s

0/100

25%

SI (Speed Index)

Value14.5 s

1/100

10%

TBT (Total Blocking Time)

Value210 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value2.014

0/100

15%

TTI (Time to Interactive)

Value15.8 s

6/100

10%

Network Requests Diagram

jcnsolar.com

1808 ms

bootstrap.css

1482 ms

style.css

1285 ms

font-awesome.min.css

862 ms

animate.css

1300 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 87% of them (79 requests) were addressed to the original Jcnsolar.com, 4% (4 requests) were made to Fonts.gstatic.com and 3% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (6.1 sec) belongs to the original domain Jcnsolar.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 654.7 kB (12%)

Content Size

5.5 MB

After Optimization

4.8 MB

In fact, the total size of Jcnsolar.com main page is 5.5 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 4.7 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 60.6 kB

  • Original 71.6 kB
  • After minification 51.4 kB
  • After compression 11.1 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 20.3 kB, which is 28% 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 60.6 kB or 85% of the original size.

Image Optimization

-1%

Potential reduce by 44.6 kB

  • Original 4.7 MB
  • After minification 4.7 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. JCN Solar images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 229.9 kB

  • Original 336.1 kB
  • After minification 281.9 kB
  • After compression 106.2 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 229.9 kB or 68% of the original size.

CSS Optimization

-88%

Potential reduce by 319.6 kB

  • Original 365.0 kB
  • After minification 299.8 kB
  • After compression 45.4 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. Jcnsolar.com needs all CSS files to be minified and compressed as it can save up to 319.6 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (28%)

Requests Now

85

After Optimization

61

The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JCN Solar. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

jcnsolar.com accessibility score

64

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[role]s are not contained by their required parent element

High

[aria-*] attributes do not have valid values

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

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>).

Best Practices

jcnsolar.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

jcnsolar.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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jcnsolar.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Jcnsolar.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

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