Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

rcnz.com

Radio Control New Zealand - RCNZ

Page Load Speed

4.2 sec in total

First Response

569 ms

Resources Loaded

3.3 sec

Page Rendered

361 ms

rcnz.com screenshot

About Website

Welcome to rcnz.com homepage info - get ready to check RCNZ best content for New Zealand right away, or after learning these important things about rcnz.com

RCNZ is New Zealand's Home of Radio Control Cars. Over 8000 pictured products covering radio control planes, cars, trucks, construction, boats, yachts and all the accessories. RCNZ offers a money...

Visit rcnz.com

Key Findings

We analyzed Rcnz.com page load time and found that the first response time was 569 ms and then it took 3.7 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

rcnz.com performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

35/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value90 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.226

55/100

15%

TTI (Time to Interactive)

Value7.4 s

48/100

10%

Network Requests Diagram

Home

569 ms

sty_main.css

218 ms

nav.js

417 ms

sty_shop.css

461 ms

jquery.min.js

632 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 95% of them (40 requests) were addressed to the original Rcnz.com, 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Rcnz.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 188.4 kB (28%)

Content Size

681.1 kB

After Optimization

492.7 kB

In fact, the total size of Rcnz.com main page is 681.1 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. 30% of websites need less resources to load. Images take 513.2 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 34.1 kB

  • Original 43.7 kB
  • After minification 32.4 kB
  • After compression 9.7 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 11.3 kB, which is 26% 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 34.1 kB or 78% of the original size.

Image Optimization

-16%

Potential reduce by 81.5 kB

  • Original 513.2 kB
  • After minification 431.8 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, RCNZ needs image optimization as it can save up to 81.5 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-54%

Potential reduce by 55.6 kB

  • Original 102.8 kB
  • After minification 102.3 kB
  • After compression 47.3 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 55.6 kB or 54% of the original size.

CSS Optimization

-81%

Potential reduce by 17.3 kB

  • Original 21.2 kB
  • After minification 16.1 kB
  • After compression 3.9 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. Rcnz.com needs all CSS files to be minified and compressed as it can save up to 17.3 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (43%)

Requests Now

40

After Optimization

23

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of RCNZ. 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

rcnz.com accessibility score

84

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

Links do not have a discernible name

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

rcnz.com best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

rcnz.com SEO score

83

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

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rcnz.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 Rcnz.com main page’s claimed encoding is iso-8859-1. 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

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