Tools & Wizards About Us

Report Summary

  • 47

    Performance

    Renders faster than
    65% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

divedoctor.com.au

The Dive Doctor | Sydney's No 1 Specialist in Dive Medicals

Page Load Speed

5.8 sec in total

First Response

1.9 sec

Resources Loaded

3.8 sec

Page Rendered

148 ms

About Website

Click here to check amazing Dive Doctor content. Otherwise, check out these important facts you probably never knew about divedoctor.com.au

Come see Sydney's number 1 specialist in Dive Medicals, Dr Harry the Dive Doctor at 248 Bondi Road, Bondi. Open 6 days a week.

Visit divedoctor.com.au

Key Findings

We analyzed Divedoctor.com.au page load time and found that the first response time was 1.9 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

divedoctor.com.au performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

9/100

25%

SI (Speed Index)

Value10.5 s

7/100

10%

TBT (Total Blocking Time)

Value170 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0.175

68/100

15%

TTI (Time to Interactive)

Value7.3 s

49/100

10%

Network Requests Diagram

divedoctor.com.au

1871 ms

reset.css

686 ms

main.css

1067 ms

default.css

643 ms

effects.css

685 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Divedoctor.com.au, 89% (32 requests) were made to Sydneyyellowfevervaccineclinic.com.au and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Divedoctor.com.au.

Page Optimization Overview & Recommendations

Page size can be reduced by 408.5 kB (60%)

Content Size

676.0 kB

After Optimization

267.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Divedoctor.com.au main page is 676.0 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. Javascripts take 448.0 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 11.7 kB

  • Original 15.9 kB
  • After minification 15.2 kB
  • After compression 4.2 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 11.7 kB or 73% of the original size.

Image Optimization

-25%

Potential reduce by 36.8 kB

  • Original 146.0 kB
  • After minification 109.3 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, Dive Doctor needs image optimization as it can save up to 36.8 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 303.6 kB

  • Original 448.0 kB
  • After minification 413.1 kB
  • After compression 144.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 303.6 kB or 68% of the original size.

CSS Optimization

-85%

Potential reduce by 56.5 kB

  • Original 66.1 kB
  • After minification 48.1 kB
  • After compression 9.6 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. Divedoctor.com.au needs all CSS files to be minified and compressed as it can save up to 56.5 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (63%)

Requests Now

32

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dive Doctor. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

divedoctor.com.au accessibility score

67

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.

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

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>).

Best Practices

divedoctor.com.au best practices score

58

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

Browser errors were logged to the console

SEO Factors

divedoctor.com.au SEO score

58

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

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 Divedoctor.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 Divedoctor.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 description is not detected on the main page of Dive Doctor. 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: