Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 78

    SEO

    Google-friendlier than
    40% of websites

colliers.co.nz

Colliers | Commercial Real Estate Agents Auckland | Colliers NZ

Page Load Speed

8.3 sec in total

First Response

597 ms

Resources Loaded

7.5 sec

Page Rendered

246 ms

colliers.co.nz screenshot

About Website

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

Colliers NZ offers a full range of real estate services to property investors, owners, and tenants, across commercial, rural and residential sectors. Learn more today.

Visit colliers.co.nz

Key Findings

We analyzed Colliers.co.nz page load time and found that the first response time was 597 ms and then it took 7.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

colliers.co.nz performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value20.2 s

0/100

25%

SI (Speed Index)

Value15.9 s

0/100

10%

TBT (Total Blocking Time)

Value3,050 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.159

73/100

15%

TTI (Time to Interactive)

Value40.4 s

0/100

10%

Network Requests Diagram

colliers.co.nz

597 ms

www.colliers.co.nz

1182 ms

jquery-1.10.0.min.js

990 ms

jquery.tokeninput.js

595 ms

jquery.autocomplete.js

595 ms

Our browser made a total of 122 requests to load all elements on the main page. We found that 89% of them (108 requests) were addressed to the original Colliers.co.nz, 5% (6 requests) were made to Google.com and 3% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Colliers.co.nz.

Page Optimization Overview & Recommendations

Page size can be reduced by 597.9 kB (26%)

Content Size

2.3 MB

After Optimization

1.7 MB

In fact, the total size of Colliers.co.nz main page is 2.3 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. 55% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 61.4 kB

  • Original 73.6 kB
  • After minification 58.0 kB
  • After compression 12.2 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 15.5 kB, which is 21% 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 61.4 kB or 83% of the original size.

Image Optimization

-5%

Potential reduce by 83.8 kB

  • Original 1.6 MB
  • After minification 1.5 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. Colliers images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 332.7 kB

  • Original 473.9 kB
  • After minification 403.0 kB
  • After compression 141.2 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 332.7 kB or 70% of the original size.

CSS Optimization

-84%

Potential reduce by 120.0 kB

  • Original 142.6 kB
  • After minification 140.1 kB
  • After compression 22.6 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. Colliers.co.nz needs all CSS files to be minified and compressed as it can save up to 120.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (32%)

Requests Now

57

After Optimization

39

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Colliers. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

colliers.co.nz accessibility score

91

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

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.

Best Practices

colliers.co.nz best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

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

colliers.co.nz SEO score

78

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

High

robots.txt is not valid

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Colliers.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 Colliers.co.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 Colliers. 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: