Tools & Wizards About Us
jensysenergy.com screenshot

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

jensysenergy.com screenshot

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 59.5 kB
  • After minification 59.3 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

jensysenergy.com

jensysenergy.com

450 ms

www.jensysenergy.com

www.jensysenergy.com

570 ms

style.css

style.css

42 ms

index.css

index.css

47 ms

swiper.css

swiper.css

49 ms

jquery-3.6.0.js

jquery-3.6.0.js

49 ms

sitecommon.js

sitecommon.js

46 ms

other.css

other.css

72 ms

Site_Common.js

Site_Common.js

47 ms

count.js

count.js

46 ms

swiper.js

swiper.js

71 ms

script.js

script.js

67 ms

float15559.js

float15559.js

138 ms

logo201901161830070920003.png

logo201901161830070920003.png

149 ms

ba202204261853583752490.jpg

ba202204261853583752490.jpg

606 ms

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monocrystalline-solar-panels-60-solar-cells31266450528.jpg

318 ms

550w-high-efficiency-mono-half-cell-solar32efa411-071d-4b68-9d6a-51e576b73b47.jpg

550w-high-efficiency-mono-half-cell-solar32efa411-071d-4b68-9d6a-51e576b73b47.jpg

387 ms

600w-mono-solar-panel-light-weighted-for45238541676.jpg

600w-mono-solar-panel-light-weighted-for45238541676.jpg

387 ms

540w-multi-busbar-mono-half-cell-solar-module08090331350.jpg

540w-multi-busbar-mono-half-cell-solar-module08090331350.jpg

367 ms

450w-monocrystalline-perc-half-cell-pv-module45322620400.jpg

450w-monocrystalline-perc-half-cell-pv-module45322620400.jpg

389 ms

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450-watt-mono-solar-panel-with-perc-cells13532960740.jpg

414 ms

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400wp-high-efficiency-monocrystalline-solar07296481037.jpg

482 ms

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390w-monocrystalline-perc-high-efficiency58532060502.jpg

535 ms

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solar-powered-lighting-system-with-fm-and-mp311403143419.jpg

506 ms

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solar-home-power-system-with-dc-fan-tv-and37515798717.png

481 ms

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5kva-off-grid-pv-system44242801208.jpg

487 ms

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10kw-on-grid-solar-system201812012317255928563.jpg

607 ms

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5kw-solar-system14578333364.jpg

588 ms

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20w-mini-solar-system-for-home-lighting37095360481.jpg

585 ms

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1000w-solar-ac-dc-power-system-full-kit49484350455.jpg

604 ms

off-grid-2kw-solar-panels-rooftop-system-for00184718635.jpg

off-grid-2kw-solar-panels-rooftop-system-for00184718635.jpg

641 ms

5kwh-wall-mounted-lifepo4-battery-51-2v-100ah42213346974.jpg

5kwh-wall-mounted-lifepo4-battery-51-2v-100ah42213346974.jpg

959 ms

wall-mounted-lithium-lifepo4-storage-battery03334597052.jpg

wall-mounted-lithium-lifepo4-storage-battery03334597052.jpg

979 ms

wall-mounted-lifepo4-lithium-battery-pack39081225383.jpg

wall-mounted-lifepo4-lithium-battery-pack39081225383.jpg

974 ms

51-2v-5kwh-10kwh-energy-storage-lfp-batteries33570130005.jpg

51-2v-5kwh-10kwh-energy-storage-lfp-batteries33570130005.jpg

1051 ms

12v-200ah-household-energy-storage-lithium48135467496.jpg

12v-200ah-household-energy-storage-lithium48135467496.jpg

1050 ms

12v-100ah-lifepo4-lithium-battery-pack57593446806.jpg

12v-100ah-lifepo4-lithium-battery-pack57593446806.jpg

1047 ms

lifepo4-lithium-battery-pack-51-2v-100ah46234839125.jpg

lifepo4-lithium-battery-pack-51-2v-100ah46234839125.jpg

1154 ms

48v-100ah-energy-storage-lithium-battery14235977504.jpg

48v-100ah-energy-storage-lithium-battery14235977504.jpg

1143 ms

all-in-one-integrated-solar-street-lightsc3577435-b49b-4ea3-8c11-022b98b7819e.jpg

all-in-one-integrated-solar-street-lightsc3577435-b49b-4ea3-8c11-022b98b7819e.jpg

1207 ms

1500lm-integrated-led-solar-street-light-all22148294637.jpg

1500lm-integrated-led-solar-street-light-all22148294637.jpg

1214 ms

3000-lm-all-in-one-led-solar-light-with-high04005438958.jpg

3000-lm-all-in-one-led-solar-light-with-high04005438958.jpg

1187 ms

all-in-one-integrated-solar-led-street-lights52566594202.jpg

all-in-one-integrated-solar-led-street-lights52566594202.jpg

1183 ms

latest-all-in-one-solar-led-street-lights36302077246.jpg

latest-all-in-one-solar-led-street-lights36302077246.jpg

1234 ms

30w-integrated-led-solar-powered-street-light47499463710.jpg

30w-integrated-led-solar-powered-street-light47499463710.jpg

1247 ms

40-watt-all-in-one-led-solar-street-lamp40334620329.jpg

40-watt-all-in-one-led-solar-street-lamp40334620329.jpg

1286 ms

50-w-led-solar-street-light-all-in-one-unit29448063313.jpg

50-w-led-solar-street-light-all-in-one-unit29448063313.jpg

1284 ms

h_sou1.png

h_sou1.png

65 ms

2wm.webp

2wm.webp

60 ms

h_sou2.png

h_sou2.png

14 ms

h_nav1.png

h_nav1.png

13 ms

h_gif.png

h_gif.png

13 ms

pro_ul.gif

pro_ul.gif

15 ms

apply_span.png

apply_span.png

13 ms

why_span.png

why_span.png

15 ms

why_icon2.png

why_icon2.png

15 ms

why_icon1.png

why_icon1.png

16 ms

why_pic1.png

why_pic1.png

15 ms

why_line1.gif

why_line1.gif

18 ms

why_pic3.png

why_pic3.png

18 ms

why_pic2.png

why_pic2.png

24 ms

pduct_span.png

pduct_span.png

16 ms

pduct_btn3.gif

pduct_btn3.gif

18 ms

pduct_btn.gif

pduct_btn.gif

18 ms

new_icon.gif

new_icon.gif

19 ms

f_bj.png

f_bj.png

20 ms

f_icon1.png

f_icon1.png

19 ms

f_pic1.png

f_pic1.png

19 ms

f_pic2.png

f_pic2.png

20 ms

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20 ms

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21 ms

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22 ms

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22 ms

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25 ms

f_pic8.png

f_pic8.png

22 ms

f_gif1.png

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23 ms

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23 ms

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f_gif3.png

103 ms

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f_gif4.png

24 ms

bmore.webp

bmore.webp

14 ms

s

s

1222 ms

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1226 ms

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1193 ms

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1045 ms

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990 ms

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968 ms

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978 ms

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1038 ms

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1115 ms

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972 ms

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1052 ms

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962 ms

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pduct_icon.png

925 ms

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1018 ms

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928 ms

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927 ms

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914 ms

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about_btn.gif

974 ms

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974 ms

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944 ms

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erwei289553.jpg

676 ms

wmkc-ico.png

wmkc-ico.png

734 ms

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

jensysenergy.com

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: