Report Summary

  • 0

    Performance

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 55

    SEO

    Google-friendlier than
    20% of websites

Page Load Speed

2.6 sec in total

First Response

173 ms

Resources Loaded

2.2 sec

Page Rendered

206 ms

zips.co.nz screenshot

About Website

Welcome to zips.co.nz homepage info - get ready to check Zips best content right away, or after learning these important things about zips.co.nz

zips.co.nz

Visit zips.co.nz

Key Findings

We analyzed Zips.co.nz page load time and found that the first response time was 173 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

zips.co.nz performance score

0

Network Requests Diagram

zips.co.nz

173 ms

340 ms

css

25 ms

stylesheet.css

65 ms

style.css

78 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Zips.co.nz, 73% (35 requests) were made to Firstclick.co.nz and 8% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Firstclick.co.nz.

Page Optimization Overview & Recommendations

Page size can be reduced by 430.2 kB (65%)

Content Size

661.7 kB

After Optimization

231.4 kB

In fact, the total size of Zips.co.nz main page is 661.7 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. 45% of websites need less resources to load. Javascripts take 415.6 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 51.6 kB

  • Original 71.5 kB
  • After minification 66.8 kB
  • After compression 19.9 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 51.6 kB or 72% of the original size.

Image Optimization

-11%

Potential reduce by 4.9 kB

  • Original 46.2 kB
  • After minification 41.4 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. Obviously, Zips needs image optimization as it can save up to 4.9 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 264.6 kB

  • Original 415.6 kB
  • After minification 415.6 kB
  • After compression 151.1 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 264.6 kB or 64% of the original size.

CSS Optimization

-85%

Potential reduce by 109.2 kB

  • Original 128.3 kB
  • After minification 101.0 kB
  • After compression 19.1 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. Zips.co.nz needs all CSS files to be minified and compressed as it can save up to 109.2 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (76%)

Requests Now

41

After Optimization

10

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zips. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

zips.co.nz accessibility score

53

Accessibility Issues

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

Document doesn't have a <title> element

High

<frame> or <iframe> elements do not have a title

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

zips.co.nz 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

High

Missing source maps for large first-party JavaScript

SEO Factors

zips.co.nz SEO score

55

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

Document doesn't have a <title> element

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zips.co.nz can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Zips.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 Zips. 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: