Tools & Wizards About Us

Report Summary

  • 69

    Performance

    Renders faster than
    80% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

jensysenergy.com

China Solar Panels, Solar System Suppliers & Manufacturers & Factory - Jensys Power Technology Co., Limited

Page Load Speed

3.7 sec in total

First Response

450 ms

Resources Loaded

2.8 sec

Page Rendered

416 ms

About Website

Click here to check amazing Jensys Energy content. Otherwise, check out these important facts you probably never knew about jensysenergy.com

We offer reliable and affordable solar energy products. As a leading manufacturer and supplier, we have devoted ourselves to renewable energy solutions for more than ten years. We are expecting to bec...

Visit jensysenergy.com

Key Findings

We analyzed Jensysenergy.com page load time and found that the first response time was 450 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

jensysenergy.com performance score

69

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

43/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value4.9 s

77/100

10%

Network Requests Diagram

jensysenergy.com

450 ms

www.jensysenergy.com

570 ms

style.css

42 ms

index.css

47 ms

swiper.css

49 ms

Our browser made a total of 102 requests to load all elements on the main page. We found that 59% of them (60 requests) were addressed to the original Jensysenergy.com, 33% (34 requests) were made to Css02.v15cdn.com and 4% (4 requests) were made to Js01.v15cdn.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Jensysenergy.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 84.4 kB (8%)

Content Size

1.0 MB

After Optimization

927.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jensysenergy.com main page is 1.0 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. 45% of websites need less resources to load. Images take 895.2 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 35.3 kB

  • Original 44.6 kB
  • After minification 43.6 kB
  • After compression 9.3 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 35.3 kB or 79% of the original size.

Image Optimization

-5%

Potential reduce by 47.0 kB

  • Original 895.2 kB
  • After minification 848.2 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. Jensys Energy images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 1.9 kB

  • Original 59.4 kB
  • After minification 59.2 kB
  • After compression 57.6 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

-2%

Potential reduce by 228 B

  • Original 12.3 kB
  • After minification 12.2 kB
  • After compression 12.0 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. Jensysenergy.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 40 (40%)

Requests Now

100

After Optimization

60

  • Images
  • JavaScript
  • CSS

The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jensys Energy. 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 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

jensysenergy.com accessibility score

57

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

jensysenergy.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

jensysenergy.com SEO score

84

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jensysenergy.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Jensysenergy.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 data is detected on the main page of Jensys Energy. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: