Tools & Wizards About Us

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

physics.otago.ac.nz

Department of Physics Home, Department of Physics | University of Otago

Page Load Speed

7 sec in total

First Response

896 ms

Resources Loaded

5.7 sec

Page Rendered

383 ms

About Website

Click here to check amazing Physics Otago content for New Zealand. Otherwise, check out these important facts you probably never knew about physics.otago.ac.nz

The Department of Physics at the University of Otago specialises in the search for and an application of rules that can predict the evolution of the world around us.

Visit physics.otago.ac.nz

Key Findings

We analyzed Physics.otago.ac.nz page load time and found that the first response time was 896 ms and then it took 6.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

physics.otago.ac.nz performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value15.0 s

1/100

10%

TBT (Total Blocking Time)

Value6,000 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.032

100/100

15%

TTI (Time to Interactive)

Value35.2 s

0/100

10%

Network Requests Diagram

physics.otago.ac.nz

896 ms

physics

440 ms

physics

675 ms

main.css

436 ms

widget.js

197 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Physics.otago.ac.nz, 46% (19 requests) were made to Otago.ac.nz and 15% (6 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (3.1 sec) relates to the external source Otago.ac.nz.

Page Optimization Overview & Recommendations

Page size can be reduced by 356.6 kB (11%)

Content Size

3.2 MB

After Optimization

2.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Physics.otago.ac.nz main page is 3.2 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. 80% 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 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-57%

Potential reduce by 347.9 kB

  • Original 612.7 kB
  • After minification 530.7 kB
  • After compression 264.8 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 82.1 kB, which is 13% 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 347.9 kB or 57% of the original size.

Image Optimization

-1%

Potential reduce by 5.4 kB

  • Original 439.1 kB
  • After minification 433.7 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. Physics Otago images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 3.3 kB

  • Original 1.9 MB
  • After minification 1.9 MB
  • After compression 1.9 MB

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

-0%

Potential reduce by 0 B

  • Original 164.9 kB
  • After minification 164.9 kB
  • After compression 164.9 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. Physics.otago.ac.nz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 12 (38%)

Requests Now

32

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Physics Otago. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

physics.otago.ac.nz accessibility score

90

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

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 IDs are not unique

Best Practices

physics.otago.ac.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

High

Missing source maps for large first-party JavaScript

SEO Factors

physics.otago.ac.nz SEO score

100

Search Engine Optimization Advices

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 Physics.otago.ac.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 Physics.otago.ac.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 Physics Otago. 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: