Tools & Wizards About Us
jarviscars.com.au screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

jarviscars.com.au

New, Demo & Used Cars Sales in Adelaide, South Australia

Page Load Speed

5.9 sec in total

First Response

1.4 sec

Resources Loaded

4.3 sec

Page Rendered

241 ms

jarviscars.com.au screenshot

About Website

Welcome to jarviscars.com.au homepage info - get ready to check Jarvis Cars best content for Australia right away, or after learning these important things about jarviscars.com.au

For the absolute best price on new, demo and used car sales in Adelaide, visit Jarvis at one of 8 locations across Adelaide and South Australia.

Visit jarviscars.com.au

Key Findings

We analyzed Jarviscars.com.au page load time and found that the first response time was 1.4 sec and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

jarviscars.com.au performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value16.3 s

0/100

25%

SI (Speed Index)

Value6.1 s

45/100

10%

TBT (Total Blocking Time)

Value1,680 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.261

47/100

15%

TTI (Time to Interactive)

Value15.9 s

6/100

10%

Network Requests Diagram

jarviscars.com.au

1350 ms

master.css

1921 ms

jarvis.css

570 ms

modernizr.js

794 ms

jquery.min.js

1138 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Jarviscars.com.au, 83% (29 requests) were made to Cdn.jarviscars.com.au and 9% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Cdn.jarviscars.com.au.

Page Optimization Overview & Recommendations

Page size can be reduced by 376.2 kB (44%)

Content Size

859.2 kB

After Optimization

483.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jarviscars.com.au main page is 859.2 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. 30% of websites need less resources to load. Images take 410.4 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 27.6 kB

  • Original 34.6 kB
  • After minification 31.3 kB
  • After compression 7.1 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 27.6 kB or 80% of the original size.

Image Optimization

-4%

Potential reduce by 15.6 kB

  • Original 410.4 kB
  • After minification 394.8 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. Jarvis Cars images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 172.8 kB

  • Original 253.8 kB
  • After minification 212.3 kB
  • After compression 81.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 172.8 kB or 68% of the original size.

CSS Optimization

-100%

Potential reduce by 160.2 kB

  • Original 160.4 kB
  • After minification 293 B
  • After compression 160 B

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. Jarviscars.com.au needs all CSS files to be minified and compressed as it can save up to 160.2 kB or 100% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (12%)

Requests Now

34

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jarvis Cars. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

jarviscars.com.au

jarviscars.com.au

1350 ms

master.css

master.css

1921 ms

jarvis.css

jarvis.css

570 ms

modernizr.js

modernizr.js

794 ms

jquery.min.js

jquery.min.js

1138 ms

app.js

app.js

1322 ms

logo-jarvis.png

logo-jarvis.png

231 ms

jarvis-left.jpg

jarvis-left.jpg

232 ms

jarvis-right.jpg

jarvis-right.jpg

685 ms

slide1.jpg

slide1.jpg

491 ms

slide2.jpg

slide2.jpg

849 ms

slide3.jpg

slide3.jpg

914 ms

slide5.jpg

slide5.jpg

1473 ms

jarvis-motorsport.jpg

jarvis-motorsport.jpg

1163 ms

ford-ranger.jpg

ford-ranger.jpg

725 ms

suzuki-grand-vitara.jpg

suzuki-grand-vitara.jpg

1205 ms

subaru-forester.jpg

subaru-forester.jpg

1026 ms

service-icon_95.png

service-icon_95.png

1078 ms

girl-with-keys.png

girl-with-keys.png

1370 ms

raa.jpg

raa.jpg

1256 ms

gtm.js

gtm.js

101 ms

ford.png

ford.png

1299 ms

toyota.png

toyota.png

1439 ms

subaru.png

subaru.png

1421 ms

suzuki.png

suzuki.png

1473 ms

isuzu.png

isuzu.png

1527 ms

skoda.png

skoda.png

1585 ms

barossa.png

barossa.png

1652 ms

bg-stripes.png

bg-stripes.png

1697 ms

tick.svg

tick.svg

1688 ms

entypo.woff

entypo.woff

1611 ms

analytics.js

analytics.js

13 ms

collect

collect

12 ms

collect

collect

63 ms

collect

collect

8 ms

Accessibility Review

jarviscars.com.au accessibility score

67

Accessibility Issues

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

Image elements do not have [alt] attributes

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

jarviscars.com.au 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

jarviscars.com.au SEO score

81

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jarviscars.com.au 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 Jarviscars.com.au 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

jarviscars.com.au

Open Graph data is detected on the main page of Jarvis Cars. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: