Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 43

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 46

    SEO

    Google-friendlier than
    18% of websites

zeda-power.com

ZEDA POWER CO.,LTD - ZEDA-POWER RC heli and plane battery,2S,3S,4S,5S,6S ,RC car battery ,2S,3S,4S,5S,6S,RC gun battery ,2S,3S,4S,5S,6S,BANK-POWER

Page Load Speed

2.3 sec in total

First Response

624 ms

Resources Loaded

1.6 sec

Page Rendered

141 ms

zeda-power.com screenshot

About Website

Welcome to zeda-power.com homepage info - get ready to check ZEDA POWER best content right away, or after learning these important things about zeda-power.com

Shenzhen Zeda-power Co., Ltd (Zeda Group) is one of the leading professional battery manufacturer in China, was built in 1995. As a professional battery expert, we not only provide customers high qual...

Visit zeda-power.com

Key Findings

We analyzed Zeda-power.com page load time and found that the first response time was 624 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

zeda-power.com performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.0 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.1 s

100/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value1.0 s

100/100

10%

Network Requests Diagram

zeda-power.com

624 ms

blackstyle.css

70 ms

sy_tu.js

135 ms

mm_menu.js

143 ms

swfobject.js

164 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that all of those requests were addressed to Zeda-power.com and no external sources were called. The less responsive or slowest element that took the longest time to load (624 ms) belongs to the original domain Zeda-power.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 92.6 kB (15%)

Content Size

608.4 kB

After Optimization

515.8 kB

In fact, the total size of Zeda-power.com main page is 608.4 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. 40% of websites need less resources to load. Images take 537.0 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 49.6 kB

  • Original 55.8 kB
  • After minification 53.6 kB
  • After compression 6.2 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 49.6 kB or 89% of the original size.

Image Optimization

-8%

Potential reduce by 40.5 kB

  • Original 537.0 kB
  • After minification 496.4 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. ZEDA POWER images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 1.6 kB

  • Original 11.9 kB
  • After minification 11.9 kB
  • After compression 10.4 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 1.6 kB or 13% of the original size.

CSS Optimization

-25%

Potential reduce by 937 B

  • Original 3.7 kB
  • After minification 3.7 kB
  • After compression 2.8 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. Zeda-power.com needs all CSS files to be minified and compressed as it can save up to 937 B or 25% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (14%)

Requests Now

69

After Optimization

59

The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZEDA 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 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

zeda-power.com accessibility score

43

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.

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

Form elements do not have associated labels

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Best Practices

zeda-power.com best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

zeda-power.com SEO score

46

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

High

Document uses plugins

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Zeda-power.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 Zeda-power.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 ZEDA 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: