Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

dolphinscuba.com.au

Perth Scuba Diving Shop | Scuba Diving Courses & Events - Dolphin Scuba

Page Load Speed

12.5 sec in total

First Response

2.9 sec

Resources Loaded

9.3 sec

Page Rendered

326 ms

dolphinscuba.com.au screenshot

About Website

Click here to check amazing Dolphin Scuba content for Australia. Otherwise, check out these important facts you probably never knew about dolphinscuba.com.au

Welcome to Dolphin Scuba – Perth’s Friendliest Dive Shop! Established in 1991, our team has oodles of scuba diving knowledge and experience to share.

Visit dolphinscuba.com.au

Key Findings

We analyzed Dolphinscuba.com.au page load time and found that the first response time was 2.9 sec and then it took 9.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

dolphinscuba.com.au performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value11.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value22.5 s

0/100

25%

SI (Speed Index)

Value27.4 s

0/100

10%

TBT (Total Blocking Time)

Value1,460 ms

15/100

30%

CLS (Cumulative Layout Shift)

Value0.097

90/100

15%

TTI (Time to Interactive)

Value21.5 s

1/100

10%

Network Requests Diagram

www.dolphinscuba.com.au

2898 ms

js

82 ms

wp-emoji-release.min.js

228 ms

sbi-styles.min.css

444 ms

layerslider.css

654 ms

Our browser made a total of 105 requests to load all elements on the main page. We found that 82% of them (86 requests) were addressed to the original Dolphinscuba.com.au, 6% (6 requests) were made to Fonts.gstatic.com and 4% (4 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Dolphinscuba.com.au.

Page Optimization Overview & Recommendations

Page size can be reduced by 199.4 kB (8%)

Content Size

2.4 MB

After Optimization

2.2 MB

In fact, the total size of Dolphinscuba.com.au main page is 2.4 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. 70% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 110.5 kB

  • Original 136.3 kB
  • After minification 134.0 kB
  • After compression 25.8 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 110.5 kB or 81% of the original size.

Image Optimization

-6%

Potential reduce by 70.0 kB

  • Original 1.2 MB
  • After minification 1.1 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. Dolphin Scuba images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 7.5 kB

  • Original 796.5 kB
  • After minification 796.0 kB
  • After compression 789.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-4%

Potential reduce by 11.5 kB

  • Original 265.9 kB
  • After minification 265.0 kB
  • After compression 254.4 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. Dolphinscuba.com.au has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 71 (77%)

Requests Now

92

After Optimization

21

The browser has sent 92 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dolphin Scuba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 43 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

dolphinscuba.com.au accessibility score

78

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.

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 IDs are not unique

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

Links do not have a discernible name

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

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

dolphinscuba.com.au 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

dolphinscuba.com.au SEO score

99

Search Engine Optimization Advices

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 Dolphinscuba.com.au 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 Dolphinscuba.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

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