Report Summary

  • 2

    Performance

    Renders faster than
    19% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

airnz.co.nz

Air New Zealand | Flights to more than 260 destinations

Page Load Speed

59.6 sec in total

First Response

145 ms

Resources Loaded

54.2 sec

Page Rendered

5.2 sec

airnz.co.nz screenshot

About Website

Click here to check amazing Air Nz content for New Zealand. Otherwise, check out these important facts you probably never knew about airnz.co.nz

Air New Zealand flies to over 260 destinations both domestic and International. Book flights confidently, no matter where you're flying to.

Visit airnz.co.nz

Key Findings

We analyzed Airnz.co.nz page load time and found that the first response time was 145 ms and then it took 59.4 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

airnz.co.nz performance score

2

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value13.3 s

0/100

25%

SI (Speed Index)

Value9.5 s

12/100

10%

TBT (Total Blocking Time)

Value3,550 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value1.288

1/100

15%

TTI (Time to Interactive)

Value18.4 s

3/100

10%

Network Requests Diagram

www.airnewzealand.co.nz

145 ms

www.airnewzealand.co.nz

1054 ms

optimizelyCache

809 ms

picturefill.js

5701 ms

main.css

5837 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Airnz.co.nz, 10% (8 requests) were made to Google.com and 8% (6 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (17 sec) relates to the external source Cdn.jsdelivr.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.6 MB (51%)

Content Size

5.1 MB

After Optimization

2.5 MB

In fact, the total size of Airnz.co.nz main page is 5.1 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-62%

Potential reduce by 1.4 kB

  • Original 2.3 kB
  • After minification 2.3 kB
  • After compression 878 B

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 1.4 kB or 62% of the original size.

Image Optimization

-2%

Potential reduce by 41.3 kB

  • Original 1.7 MB
  • After minification 1.6 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. Air Nz images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 1.8 MB

  • Original 2.6 MB
  • After minification 2.6 MB
  • After compression 746.0 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 1.8 MB or 71% of the original size.

CSS Optimization

-84%

Potential reduce by 734.1 kB

  • Original 871.2 kB
  • After minification 870.9 kB
  • After compression 137.1 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. Airnz.co.nz needs all CSS files to be minified and compressed as it can save up to 734.1 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (51%)

Requests Now

63

After Optimization

31

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Air Nz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

airnz.co.nz accessibility score

93

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 have valid values

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

airnz.co.nz best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Requests the geolocation permission on page load

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

airnz.co.nz SEO score

86

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

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Airnz.co.nz 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 Airnz.co.nz main page’s claimed encoding is . 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 Air Nz. 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: