Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

blackboxreviews.co.nz

Black Box Product Reviews | Authentic Customer Product Reviews

Page Load Speed

10.7 sec in total

First Response

871 ms

Resources Loaded

8.2 sec

Page Rendered

1.6 sec

blackboxreviews.co.nz screenshot

About Website

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

Welcome to the Black Box Product Review community where you can research and review 1000’s of products. Get involved, tell us what you think!

Visit blackboxreviews.co.nz

Key Findings

We analyzed Blackboxreviews.co.nz page load time and found that the first response time was 871 ms and then it took 9.8 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

blackboxreviews.co.nz performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value26.0 s

0/100

25%

SI (Speed Index)

Value24.0 s

0/100

10%

TBT (Total Blocking Time)

Value11,530 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value33.5 s

0/100

10%

Network Requests Diagram

www.blackboxreviews.co.nz

871 ms

gtm.js

112 ms

style.css

61 ms

style.min.css

63 ms

login-form.min.css

476 ms

Our browser made a total of 105 requests to load all elements on the main page. We found that 86% of them (90 requests) were addressed to the original Blackboxreviews.co.nz, 2% (2 requests) were made to Googletagmanager.com and 2% (2 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Blackboxreviews.co.nz.

Page Optimization Overview & Recommendations

Page size can be reduced by 261.0 kB (22%)

Content Size

1.2 MB

After Optimization

949.0 kB

In fact, the total size of Blackboxreviews.co.nz main page is 1.2 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. 75% 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. Images take 846.8 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 253.9 kB

  • Original 299.7 kB
  • After minification 299.5 kB
  • After compression 45.8 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 253.9 kB or 85% of the original size.

Image Optimization

-1%

Potential reduce by 6.9 kB

  • Original 846.8 kB
  • After minification 839.9 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. Black Box Reviews images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 209 B

  • Original 63.6 kB
  • After minification 63.6 kB
  • After compression 63.4 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.

Requests Breakdown

Number of requests can be reduced by 78 (78%)

Requests Now

100

After Optimization

22

The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Black Box Reviews. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 50 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

blackboxreviews.co.nz accessibility score

76

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

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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.

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

Best Practices

blackboxreviews.co.nz best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

Page has valid source maps

SEO Factors

blackboxreviews.co.nz SEO score

91

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

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 Blackboxreviews.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 Blackboxreviews.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 Black Box Reviews. 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: