Report Summary

  • 62

    Performance

    Renders faster than
    77% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

defensivedrivingschool.co.nz

Christchurch Driving School, New Zealand (Defensive Driving School)

Page Load Speed

5.1 sec in total

First Response

1.1 sec

Resources Loaded

3.7 sec

Page Rendered

334 ms

defensivedrivingschool.co.nz screenshot

About Website

Visit defensivedrivingschool.co.nz now to see the best up-to-date Defensive Driving School content and also check out these interesting facts you probably never knew about defensivedrivingschool.co.nz

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Visit defensivedrivingschool.co.nz

Key Findings

We analyzed Defensivedrivingschool.co.nz page load time and found that the first response time was 1.1 sec and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

defensivedrivingschool.co.nz performance score

62

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

26/100

25%

SI (Speed Index)

Value4.7 s

68/100

10%

TBT (Total Blocking Time)

Value240 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0.144

77/100

15%

TTI (Time to Interactive)

Value7.1 s

52/100

10%

Network Requests Diagram

defensivedrivingschool.co.nz

1062 ms

defensivedrivingschool.co.nz

938 ms

Site.css

216 ms

popup_window.js

432 ms

road_background.jpg

852 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that 83% of them (10 requests) were addressed to the original Defensivedrivingschool.co.nz, 17% (2 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Defensivedrivingschool.co.nz.

Page Optimization Overview & Recommendations

Page size can be reduced by 84.6 kB (21%)

Content Size

398.3 kB

After Optimization

313.7 kB

In fact, the total size of Defensivedrivingschool.co.nz main page is 398.3 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. 15% of websites need less resources to load. Images take 357.9 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 21.9 kB

  • Original 28.4 kB
  • After minification 23.6 kB
  • After compression 6.4 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 4.8 kB, which is 17% 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 21.9 kB or 77% of the original size.

Image Optimization

-15%

Potential reduce by 52.6 kB

  • Original 357.9 kB
  • After minification 305.3 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. Obviously, Defensive Driving School needs image optimization as it can save up to 52.6 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-83%

Potential reduce by 10.0 kB

  • Original 12.0 kB
  • After minification 7.2 kB
  • After compression 2.0 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. Defensivedrivingschool.co.nz needs all CSS files to be minified and compressed as it can save up to 10.0 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Defensive Driving School. According to our analytics all requests are already optimized.

Accessibility Review

defensivedrivingschool.co.nz accessibility score

86

Accessibility Issues

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Links do not have a discernible name

Best Practices

defensivedrivingschool.co.nz best practices score

58

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

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

defensivedrivingschool.co.nz SEO score

93

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

Document doesn't have a valid hreflang

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 Defensivedrivingschool.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 Defensivedrivingschool.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 data is detected on the main page of Defensive Driving School. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: