Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

nzso.co.nz

Experience live classical music | New Zealand Symphony Orchestra | NZSO

Page Load Speed

518 ms in total

First Response

218 ms

Resources Loaded

229 ms

Page Rendered

71 ms

nzso.co.nz screenshot

About Website

Welcome to nzso.co.nz homepage info - get ready to check NZSO best content for New Zealand right away, or after learning these important things about nzso.co.nz

The New Zealand Symphony Orchestra (NZSO), founded in 1946, is the country’s leading professional orchestra.

Visit nzso.co.nz

Key Findings

We analyzed Nzso.co.nz page load time and found that the first response time was 218 ms and then it took 300 ms 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

nzso.co.nz performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

79/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value6.2 s

44/100

10%

TBT (Total Blocking Time)

Value1,530 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value16.0 s

6/100

10%

Network Requests Diagram

nzso.co.nz

218 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Nzso.co.nz and no external sources were called. The less responsive or slowest element that took the longest time to load (218 ms) belongs to the original domain Nzso.co.nz.

Page Optimization Overview & Recommendations

Page size can be reduced by 450.6 kB (42%)

Content Size

1.1 MB

After Optimization

622.6 kB

In fact, the total size of Nzso.co.nz main page is 1.1 MB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 593.7 kB which makes up the majority of the site volume.

HTML Optimization

-14%

Potential reduce by 16 B

  • Original 118 B
  • After minification 118 B
  • After compression 102 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 16 B or 14% of the original size.

Image Optimization

-19%

Potential reduce by 112.8 kB

  • Original 593.7 kB
  • After minification 480.9 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, NZSO needs image optimization as it can save up to 112.8 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 230.8 kB

  • Original 353.0 kB
  • After minification 331.7 kB
  • After compression 122.2 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 230.8 kB or 65% of the original size.

CSS Optimization

-85%

Potential reduce by 106.9 kB

  • Original 126.3 kB
  • After minification 110.3 kB
  • After compression 19.4 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. Nzso.co.nz needs all CSS files to be minified and compressed as it can save up to 106.9 kB or 85% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Accessibility Review

nzso.co.nz accessibility score

76

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

Best Practices

nzso.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

Low

Detected JavaScript libraries

SEO Factors

nzso.co.nz SEO score

83

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

High

Image elements do not have [alt] attributes

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 Nzso.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 Nzso.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 NZSO. 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: