Tools & Wizards About Us

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

dunstan.school.nz

Home Dunstan High School, Central Otago 03 448 8595

Page Load Speed

4.3 sec in total

First Response

155 ms

Resources Loaded

3.7 sec

Page Rendered

488 ms

About Website

Visit dunstan.school.nz now to see the best up-to-date Dunstan content for New Zealand and also check out these interesting facts you probably never knew about dunstan.school.nz

Dunstan High School, Alexandra, is a modern co-educational Year 9 to Year 13 secondary school catering for over 560 students. Alexandra is the commercial c

Visit dunstan.school.nz

Key Findings

We analyzed Dunstan.school.nz page load time and found that the first response time was 155 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

dunstan.school.nz performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

7/100

10%

LCP (Largest Contentful Paint)

Value27.2 s

0/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value2,990 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value30.3 s

0/100

10%

Network Requests Diagram

dunstan.school.nz

155 ms

www.dunstan.school.nz

702 ms

js

99 ms

jquery.mb.YTPlayer.min.css

45 ms

froala_style.min.css

134 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 10% of them (6 requests) were addressed to the original Dunstan.school.nz, 25% (16 requests) were made to Dunstan.ibcdn.nz and 16% (10 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Dunstan.school.nz.

Page Optimization Overview & Recommendations

Page size can be reduced by 827.4 kB (8%)

Content Size

10.9 MB

After Optimization

10.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dunstan.school.nz main page is 10.9 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. Only a small number of websites need less resources to load. Images take 10.3 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 32.8 kB

  • Original 41.2 kB
  • After minification 35.5 kB
  • After compression 8.4 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 5.7 kB, which is 14% 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 32.8 kB or 80% of the original size.

Image Optimization

-8%

Potential reduce by 787.7 kB

  • Original 10.3 MB
  • After minification 9.5 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. Dunstan images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 5.0 kB

  • Original 438.9 kB
  • After minification 438.9 kB
  • After compression 433.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-2%

Potential reduce by 2.0 kB

  • Original 121.9 kB
  • After minification 119.8 kB
  • After compression 119.8 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. Dunstan.school.nz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 30 (55%)

Requests Now

55

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dunstan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

dunstan.school.nz accessibility score

73

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 input fields do not have accessible names

High

[role] values are not valid

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

dunstan.school.nz best practices score

83

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

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

dunstan.school.nz SEO score

86

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dunstan.school.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 Dunstan.school.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 data is detected on the main page of Dunstan. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: