Tools & Wizards About Us
nationalopal.com screenshot

Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 39

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

nationalopal.com

The National Opal Collection | Australian Opal Jewellery Melbourne & Sydney

Page Load Speed

11.9 sec in total

First Response

693 ms

Resources Loaded

11 sec

Page Rendered

212 ms

nationalopal.com screenshot

About Website

Visit nationalopal.com now to see the best up-to-date National Opal content and also check out these interesting facts you probably never knew about nationalopal.com

The National Opal Collection is Australia's leading supplier of opals including beautiful black opals, light opals and boulder opals as well as exquisite opal jewellery.

Visit nationalopal.com

Key Findings

We analyzed Nationalopal.com page load time and found that the first response time was 693 ms and then it took 11.2 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

nationalopal.com performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value10.0 s

9/100

10%

TBT (Total Blocking Time)

Value240 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0.027

100/100

15%

TTI (Time to Interactive)

Value7.0 s

52/100

10%

Network Requests Diagram

nationalopal.com

693 ms

www.nationalopal.com

5895 ms

jquery-1.4.2.min.js

668 ms

slides.min.jquery.js

448 ms

jquery-load.js

449 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 96% of them (44 requests) were addressed to the original Nationalopal.com, 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (5.9 sec) belongs to the original domain Nationalopal.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 567.2 kB (38%)

Content Size

1.5 MB

After Optimization

938.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nationalopal.com main page is 1.5 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. 35% of websites need less resources to load. Images take 832.8 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 36.8 kB

  • Original 43.3 kB
  • After minification 42.8 kB
  • After compression 6.5 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 36.8 kB or 85% of the original size.

Image Optimization

-7%

Potential reduce by 56.8 kB

  • Original 832.8 kB
  • After minification 776.0 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. National Opal images are well optimized though.

JavaScript Optimization

-75%

Potential reduce by 464.2 kB

  • Original 617.0 kB
  • After minification 612.8 kB
  • After compression 152.8 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 464.2 kB or 75% of the original size.

CSS Optimization

-76%

Potential reduce by 9.4 kB

  • Original 12.4 kB
  • After minification 10.9 kB
  • After compression 3.0 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. Nationalopal.com needs all CSS files to be minified and compressed as it can save up to 9.4 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (39%)

Requests Now

44

After Optimization

27

  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of National Opal. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

nationalopal.com

nationalopal.com

693 ms

www.nationalopal.com

www.nationalopal.com

5895 ms

jquery-1.4.2.min.js

jquery-1.4.2.min.js

668 ms

slides.min.jquery.js

slides.min.jquery.js

448 ms

jquery-load.js

jquery-load.js

449 ms

cufon-yui.js

cufon-yui.js

456 ms

cufon-load.js

cufon-load.js

452 ms

styles-general.css

styles-general.css

479 ms

styles-home.css

styles-home.css

675 ms

router.css

router.css

675 ms

jquery.cookie.js

jquery.cookie.js

254 ms

jquery.easyListSplitter.js

jquery.easyListSplitter.js

250 ms

cufon-helveticaneue.font.js

cufon-helveticaneue.font.js

684 ms

cufon-georgia.font.js

cufon-georgia.font.js

930 ms

ga.js

ga.js

15 ms

bg_body.jpg

bg_body.jpg

225 ms

bg_searchbar.jpg

bg_searchbar.jpg

226 ms

icon_search.jpg

icon_search.jpg

229 ms

resizer.jpg

resizer.jpg

224 ms

logo.jpg

logo.jpg

445 ms

bg_menu-active.jpg

bg_menu-active.jpg

246 ms

bg_menu.jpg

bg_menu.jpg

445 ms

bg_menu-child.jpg

bg_menu-child.jpg

447 ms

hero-shadow.jpg

hero-shadow.jpg

449 ms

3a.jpg

3a.jpg

1146 ms

3b.png

3b.png

1702 ms

2a.jpg

2a.jpg

1322 ms

2b.png

2b.png

1760 ms

1a.jpg

1a.jpg

1116 ms

1b.png

1b.png

1127 ms

4a.jpg

4a.jpg

1559 ms

4b.png

4b.png

1586 ms

image__lsHmSKzeHxdWhCKYzxOP_1297653827.jpg

image__lsHmSKzeHxdWhCKYzxOP_1297653827.jpg

1373 ms

image__rBCODBIGXUIfzXBczWNG_1356051472.jpg

image__rBCODBIGXUIfzXBczWNG_1356051472.jpg

1762 ms

banner-02.jpg

banner-02.jpg

1603 ms

banner-03.jpg

banner-03.jpg

1781 ms

banner-01.jpg

banner-01.jpg

1811 ms

logo_members.jpg

logo_members.jpg

1829 ms

logo_facebook.png

logo_facebook.png

1944 ms

logo_twitter.png

logo_twitter.png

2510 ms

logo_youtube.png

logo_youtube.png

2015 ms

bg_content.jpg

bg_content.jpg

2020 ms

banner-shadow.jpg

banner-shadow.jpg

2041 ms

marker.png

marker.png

2048 ms

__utm.gif

__utm.gif

10 ms

bg_menu-child-sep.jpg

bg_menu-child-sep.jpg

2119 ms

Accessibility Review

nationalopal.com accessibility score

39

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

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

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

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

nationalopal.com best practices score

67

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

SEO Factors

nationalopal.com SEO score

67

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nationalopal.com 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 Nationalopal.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

nationalopal.com

Open Graph description is not detected on the main page of National Opal. 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: