Tools & Wizards About Us

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

crow.org.nz

Cyber Security Group - Department of Computer Science: University of Waikato

Page Load Speed

3.5 sec in total

First Response

692 ms

Resources Loaded

2.8 sec

Page Rendered

0 ms

About Website

Click here to check amazing Crow content. Otherwise, check out these important facts you probably never knew about crow.org.nz

The Cyber Security Researchers of Waikato (CROW) aims to return control of data to data owners, by focusing on research addressing data security from a user-centric perspective.

Visit crow.org.nz

Key Findings

We analyzed Crow.org.nz page load time and found that the first response time was 692 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

crow.org.nz performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

37/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value3,170 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value14.0 s

10/100

10%

Network Requests Diagram

crow.org.nz

692 ms

cyber-security-group

955 ms

cyber-security-research-group-crow

1075 ms

gtm.js

76 ms

app.css

39 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Crow.org.nz, 90% (26 requests) were made to Waikato.ac.nz and 3% (1 request) were made to Cs.waikato.ac.nz. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Waikato.ac.nz.

Page Optimization Overview & Recommendations

Page size can be reduced by 234.8 kB (36%)

Content Size

645.6 kB

After Optimization

410.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Crow.org.nz main page is 645.6 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. 40% of websites need less resources to load. HTML takes 267.2 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 228.0 kB

  • Original 267.2 kB
  • After minification 201.5 kB
  • After compression 39.2 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 65.7 kB, which is 25% 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 228.0 kB or 85% of the original size.

Image Optimization

-2%

Potential reduce by 3.0 kB

  • Original 147.2 kB
  • After minification 144.2 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. Crow images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.6 kB

  • Original 165.6 kB
  • After minification 165.6 kB
  • After compression 164.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-3%

Potential reduce by 2.2 kB

  • Original 65.4 kB
  • After minification 65.4 kB
  • After compression 63.3 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. Crow.org.nz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (42%)

Requests Now

26

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Crow. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

crow.org.nz accessibility score

78

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 match their roles

High

[aria-*] attributes are not valid or misspelled

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

Best Practices

crow.org.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

Page has valid source maps

SEO Factors

crow.org.nz SEO score

89

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

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

High

Tap targets are not sized appropriately

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 Crow.org.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 Crow.org.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 Crow. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: