Tools & Wizards About Us
szpowerdrive.com screenshot

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

szpowerdrive.com

Variable Frequency AC Drive Inverter, AC Power Source supplier in China

Page Load Speed

2.6 sec in total

First Response

196 ms

Resources Loaded

2.2 sec

Page Rendered

159 ms

szpowerdrive.com screenshot

About Website

Visit szpowerdrive.com now to see the best up-to-date Sz Power Drive content and also check out these interesting facts you probably never knew about szpowerdrive.com

AC Power Source and Variable Frequency Inverter AC Drives (VFD) are main products manufactured by Shenzhen Power Drive, which is a leading supplier in China of AC drive (variable frequency drive), AC ...

Visit szpowerdrive.com

Key Findings

We analyzed Szpowerdrive.com page load time and found that the first response time was 196 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

szpowerdrive.com performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

86/100

10%

LCP (Largest Contentful Paint)

Value2.0 s

97/100

25%

SI (Speed Index)

Value1.9 s

100/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.4 s

99/100

10%

Network Requests Diagram

www.szpowerdrive.com

196 ms

css.css

197 ms

js.js

148 ms

ga.js

8 ms

top.gif

386 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 93% of them (27 requests) were addressed to the original Szpowerdrive.com, 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Szpowerdrive.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 26.4 kB (31%)

Content Size

86.6 kB

After Optimization

60.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Szpowerdrive.com main page is 86.6 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. 15% of websites need less resources to load. Images take 46.9 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 8.3 kB

  • Original 11.4 kB
  • After minification 10.0 kB
  • After compression 3.1 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 1.4 kB, which is 12% 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 8.3 kB or 73% of the original size.

Image Optimization

-20%

Potential reduce by 9.4 kB

  • Original 46.9 kB
  • After minification 37.5 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. Obviously, Sz Power Drive needs image optimization as it can save up to 9.4 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 424 B

  • Original 18.0 kB
  • After minification 18.0 kB
  • After compression 17.6 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

-81%

Potential reduce by 8.3 kB

  • Original 10.2 kB
  • After minification 7.1 kB
  • After compression 1.9 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. Szpowerdrive.com needs all CSS files to be minified and compressed as it can save up to 8.3 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (46%)

Requests Now

28

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sz Power Drive. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

www.szpowerdrive.com

www.szpowerdrive.com

196 ms

css.css

css.css

197 ms

js.js

js.js

148 ms

ga.js

ga.js

8 ms

top.gif

top.gif

386 ms

body-bg.gif

body-bg.gif

298 ms

banner.gif

banner.gif

396 ms

logo.png

logo.png

601 ms

caption.gif

caption.gif

432 ms

Three%20phase%20AC%20drive.jpg

Three%20phase%20AC%20drive.jpg

607 ms

Variable%20frequency%20drive.jpg

Variable%20frequency%20drive.jpg

670 ms

Variable%20speed%20drive.jpg

Variable%20speed%20drive.jpg

603 ms

Frequency%20converter.jpg

Frequency%20converter.jpg

708 ms

tel.jpg

tel.jpg

703 ms

skype.jpg

skype.jpg

714 ms

msn.jpg

msn.jpg

714 ms

email.jpg

email.jpg

703 ms

linkedIn.jpg

linkedIn.jpg

738 ms

twitter.jpg

twitter.jpg

809 ms

googlePlus.jpg

googlePlus.jpg

923 ms

facebook.jpg

facebook.jpg

842 ms

leftside.gif

leftside.gif

900 ms

footerarrow.gif

footerarrow.gif

873 ms

rightside.gif

rightside.gif

975 ms

facebook2.jpg

facebook2.jpg

1127 ms

twitter2.jpg

twitter2.jpg

1175 ms

googleplus2.jpg

googleplus2.jpg

1141 ms

linkedin2.jpg

linkedin2.jpg

1127 ms

__utm.gif

__utm.gif

11 ms

Accessibility Review

szpowerdrive.com accessibility score

86

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

Best Practices

szpowerdrive.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

SEO Factors

szpowerdrive.com SEO score

79

Search Engine Optimization Advices

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 Szpowerdrive.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 Szpowerdrive.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

szpowerdrive.com

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