Tools & Wizards About Us

Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

adcl.co.nz

Advanced Data Centres ADC - IT support and services for businesses throughout New Zealand

Page Load Speed

6.9 sec in total

First Response

602 ms

Resources Loaded

5.5 sec

Page Rendered

756 ms

About Website

Visit adcl.co.nz now to see the best up-to-date ADC L content and also check out these interesting facts you probably never knew about adcl.co.nz

ADC offerings range from Hosted Virtual Servers to Microsoft 365 to on-prem Server systems to IT Helpdesk and of course our world class data centre.

Visit adcl.co.nz

Key Findings

We analyzed Adcl.co.nz page load time and found that the first response time was 602 ms and then it took 6.3 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

adcl.co.nz performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value18.5 s

0/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value110 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.297

40/100

15%

TTI (Time to Interactive)

Value9.3 s

32/100

10%

Network Requests Diagram

adcl.co.nz

602 ms

adc.co.nz

1116 ms

js

65 ms

default.css

397 ms

ie.css

596 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Adcl.co.nz, 90% (52 requests) were made to Adc.co.nz and 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Adc.co.nz.

Page Optimization Overview & Recommendations

Page size can be reduced by 282.8 kB (6%)

Content Size

4.4 MB

After Optimization

4.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Adcl.co.nz main page is 4.4 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. 50% of websites need less resources to load. Images take 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 53.2 kB

  • Original 68.2 kB
  • After minification 60.5 kB
  • After compression 15.0 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 7.7 kB, which is 11% 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 53.2 kB or 78% of the original size.

Image Optimization

-4%

Potential reduce by 156.9 kB

  • Original 3.9 MB
  • After minification 3.8 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. ADC L images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 54.1 kB

  • Original 322.7 kB
  • After minification 322.6 kB
  • After compression 268.6 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 54.1 kB or 17% of the original size.

CSS Optimization

-22%

Potential reduce by 18.6 kB

  • Original 82.6 kB
  • After minification 72.8 kB
  • After compression 64.0 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. Adcl.co.nz needs all CSS files to be minified and compressed as it can save up to 18.6 kB or 22% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (56%)

Requests Now

55

After Optimization

24

  • Images
  • JavaScript
  • CSS

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ADC L. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

adcl.co.nz accessibility score

88

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

adcl.co.nz best practices score

67

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

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

adcl.co.nz SEO score

83

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

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 Adcl.co.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 Adcl.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 ADC L. 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: