Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

powerbox.co.nz

Powerbox - Power Supplies in New Zealand

Page Load Speed

12.3 sec in total

First Response

2.6 sec

Resources Loaded

9.3 sec

Page Rendered

460 ms

powerbox.co.nz screenshot

About Website

Click here to check amazing Powerbox content. Otherwise, check out these important facts you probably never knew about powerbox.co.nz

Power Supplies New Zealand - Discover Powerbox New Zealand's range of AC/DC power supplies, battery chargers, and converters for efficient industry solutions.

Visit powerbox.co.nz

Key Findings

We analyzed Powerbox.co.nz page load time and found that the first response time was 2.6 sec and then it took 9.7 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

powerbox.co.nz performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value35.6 s

0/100

25%

SI (Speed Index)

Value14.8 s

1/100

10%

TBT (Total Blocking Time)

Value90 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value12.5 s

14/100

10%

Network Requests Diagram

www.powerbox.co.nz

2601 ms

jquery.min.js

5 ms

prototype.js

24 ms

f54b527969ddbd4b90e48f6c7f695d65.css

1303 ms

0bba595b23c2298f92ae6c49fc73196a.js

1803 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 58% of them (26 requests) were addressed to the original Powerbox.co.nz, 9% (4 requests) were made to Fonts.gstatic.com and 9% (4 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (4.7 sec) belongs to the original domain Powerbox.co.nz.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.5 MB (31%)

Content Size

8.1 MB

After Optimization

5.6 MB

In fact, the total size of Powerbox.co.nz main page is 8.1 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. 55% of websites need less resources to load. Images take 7.1 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 115.4 kB

  • Original 130.9 kB
  • After minification 123.0 kB
  • After compression 15.5 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 115.4 kB or 88% of the original size.

Image Optimization

-24%

Potential reduce by 1.7 MB

  • Original 7.1 MB
  • After minification 5.4 MB

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, Powerbox needs image optimization as it can save up to 1.7 MB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-63%

Potential reduce by 299.0 kB

  • Original 475.4 kB
  • After minification 394.0 kB
  • After compression 176.4 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 299.0 kB or 63% of the original size.

CSS Optimization

-84%

Potential reduce by 350.0 kB

  • Original 416.7 kB
  • After minification 393.5 kB
  • After compression 66.7 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. Powerbox.co.nz needs all CSS files to be minified and compressed as it can save up to 350.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (27%)

Requests Now

37

After Optimization

27

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Powerbox. 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.

Accessibility Review

powerbox.co.nz accessibility score

76

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

powerbox.co.nz best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

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

High

Browser errors were logged to the console

SEO Factors

powerbox.co.nz SEO score

77

Search Engine Optimization Advices

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 Powerbox.co.nz 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 Powerbox.co.nz 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 Powerbox. 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: