Tools & Wizards About Us
vanonpower.com screenshot

Report Summary

  • 69

    Performance

    Renders faster than
    81% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

vanonpower.com

lithium ion deep cycle power battery for electric cars patent knowledge

Page Load Speed

9.1 sec in total

First Response

638 ms

Resources Loaded

7.5 sec

Page Rendered

1 sec

vanonpower.com screenshot

About Website

Click here to check amazing Vanon Power content. Otherwise, check out these important facts you probably never knew about vanonpower.com

lithium ion deep cycle battery are an internationally recognized ideal chemical energy source and have become the first choice for power battery for electric cars. However, the power battery industry ...

Visit vanonpower.com

Key Findings

We analyzed Vanonpower.com page load time and found that the first response time was 638 ms and then it took 8.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

vanonpower.com performance score

69

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

20/100

25%

SI (Speed Index)

Value4.8 s

68/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.3 s

60/100

10%

Network Requests Diagram

vanonpower.com

638 ms

xcy.js

193 ms

dedecms.css

483 ms

18643405.js

872 ms

www.038168.cn

3600 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 36% of them (25 requests) were addressed to the original Vanonpower.com, 62% (43 requests) were made to 038168.cn and 1% (1 request) were made to Js.users.51.la. The less responsive or slowest element that took the longest time to load (3.6 sec) relates to the external source 038168.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 599.5 kB (41%)

Content Size

1.4 MB

After Optimization

848.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vanonpower.com main page is 1.4 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 733.0 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 25.1 kB

  • Original 31.9 kB
  • After minification 30.4 kB
  • After compression 6.8 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 25.1 kB or 79% of the original size.

Image Optimization

-2%

Potential reduce by 11.6 kB

  • Original 733.0 kB
  • After minification 721.4 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. Vanon Power images are well optimized though.

JavaScript Optimization

-76%

Potential reduce by 221.7 kB

  • Original 290.6 kB
  • After minification 222.7 kB
  • After compression 68.9 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 221.7 kB or 76% of the original size.

CSS Optimization

-87%

Potential reduce by 341.1 kB

  • Original 392.4 kB
  • After minification 308.4 kB
  • After compression 51.3 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. Vanonpower.com needs all CSS files to be minified and compressed as it can save up to 341.1 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (38%)

Requests Now

65

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vanon Power. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vanonpower.com

vanonpower.com

638 ms

xcy.js

xcy.js

193 ms

dedecms.css

dedecms.css

483 ms

18643405.js

18643405.js

872 ms

www.038168.cn

www.038168.cn

3600 ms

layout.css

layout.css

119 ms

page.css

page.css

271 ms

logo.gif

logo.gif

188 ms

000735672.jpg

000735672.jpg

389 ms

400371770.jpg

400371770.jpg

393 ms

4003497931.jpg

4003497931.jpg

388 ms

20036887.jpg

20036887.jpg

386 ms

1003096634.jpg

1003096634.jpg

368 ms

5003611592.jpg

5003611592.jpg

370 ms

8003233604.jpg

8003233604.jpg

387 ms

1003098429.jpg

1003098429.jpg

1566 ms

1003976642.jpg

1003976642.jpg

527 ms

7003296532.jpg

7003296532.jpg

1712 ms

0003417470.jpg

0003417470.jpg

1696 ms

3003616944.jpg

3003616944.jpg

696 ms

2003243081.jpg

2003243081.jpg

3147 ms

300369456.jpg

300369456.jpg

800 ms

green_skin.png

green_skin.png

598 ms

search-bt.gif

search-bt.gif

675 ms

ico-1.gif

ico-1.gif

978 ms

ico-3.gif

ico-3.gif

1063 ms

ico-2.gif

ico-2.gif

1504 ms

bootstrap-responsive.css

bootstrap-responsive.css

87 ms

style.css

style.css

189 ms

default.css

default.css

187 ms

jquery.js

jquery.js

276 ms

jquery.scrollTo.js

jquery.scrollTo.js

197 ms

jquery.nav.js

jquery.nav.js

196 ms

jquery.localscroll-1.2.7-min.js

jquery.localscroll-1.2.7-min.js

198 ms

bootstrap.js

bootstrap.js

273 ms

jquery.prettyPhoto.js

jquery.prettyPhoto.js

268 ms

isotope.js

isotope.js

267 ms

jquery.flexslider.js

jquery.flexslider.js

274 ms

inview.js

inview.js

267 ms

animate.js

animate.js

342 ms

jquery.tweet.js

jquery.tweet.js

343 ms

validate.js

validate.js

341 ms

custom.js

custom.js

349 ms

logo-image.png

logo-image.png

350 ms

creativity.png

creativity.png

348 ms

img-1.jpg

img-1.jpg

418 ms

img-2.jpg

img-2.jpg

416 ms

img-3.jpg

img-3.jpg

418 ms

img-4.jpg

img-4.jpg

425 ms

img-5.jpg

img-5.jpg

428 ms

laptop.png

laptop.png

427 ms

lab.png

lab.png

506 ms

camera.png

camera.png

494 ms

basket.png

basket.png

492 ms

img1.jpg

img1.jpg

501 ms

img2.jpg

img2.jpg

701 ms

img3.jpg

img3.jpg

637 ms

img4.jpg

img4.jpg

608 ms

css-family=Open+Sans-300,400,600,700.css

css-family=Open+Sans-300,400,600,700.css

431 ms

bootstrap.css

bootstrap.css

445 ms

prettyPhoto.css

prettyPhoto.css

437 ms

flexslider.css

flexslider.css

516 ms

font-awesome.css

font-awesome.css

524 ms

overwrite.css

overwrite.css

527 ms

animate.css

animate.css

531 ms

bg-1.jpg

bg-1.jpg

311 ms

fontawesome-webfont.woff-v=3.2.1

fontawesome-webfont.woff-v=3.2.1

76 ms

fontawesome-webfont.ttf-v=3.2.1

fontawesome-webfont.ttf-v=3.2.1

97 ms

fontawesome-webfont.svg

fontawesome-webfont.svg

93 ms

Accessibility Review

vanonpower.com accessibility score

95

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.

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

Links do not have a discernible name

Best Practices

vanonpower.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

vanonpower.com SEO score

97

Search Engine Optimization Advices

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

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vanonpower.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 Vanonpower.com main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

vanonpower.com

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