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dual-reference.com screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

dual-reference.com

The Dual-Reference Website

Page Load Speed

21.7 sec in total

First Response

457 ms

Resources Loaded

20.5 sec

Page Rendered

662 ms

dual-reference.com screenshot

About Website

Click here to check amazing Dual Reference content for United States. Otherwise, check out these important facts you probably never knew about dual-reference.com

Reference Website For Dual Turntables & Dual Audio Equipment

Visit dual-reference.com

Key Findings

We analyzed Dual-reference.com page load time and found that the first response time was 457 ms and then it took 21.2 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

dual-reference.com performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value2.1 s

96/100

25%

SI (Speed Index)

Value1.2 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.2 s

100/100

10%

Network Requests Diagram

dual-reference.com

457 ms

ga.js

90 ms

history.jpg

380 ms

product.jpg

386 ms

parts.jpg

386 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 63% of them (15 requests) were addressed to the original Dual-reference.com, 8% (2 requests) were made to Google-analytics.com and 8% (2 requests) were made to Sfx-images.mozilla.org. The less responsive or slowest element that took the longest time to load (20 sec) relates to the external source Hostingprod.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 46.8 kB (39%)

Content Size

119.7 kB

After Optimization

72.8 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Dual-reference.com main page is 119.7 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 53.2 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 10.7 kB

  • Original 13.4 kB
  • After minification 10.1 kB
  • After compression 2.7 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 3.3 kB, which is 25% 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 10.7 kB or 80% of the original size.

Image Optimization

-15%

Potential reduce by 8.2 kB

  • Original 53.2 kB
  • After minification 44.9 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, Dual Reference needs image optimization as it can save up to 8.2 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-53%

Potential reduce by 27.9 kB

  • Original 53.1 kB
  • After minification 46.6 kB
  • After compression 25.2 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 27.9 kB or 53% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

22

After Optimization

22

  • Images
  • JavaScript

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dual Reference. According to our analytics all requests are already optimized.

Network Requests Diagram

dual-reference.com

dual-reference.com

457 ms

ga.js

ga.js

90 ms

history.jpg

history.jpg

380 ms

product.jpg

product.jpg

386 ms

parts.jpg

parts.jpg

386 ms

trouble.jpg

trouble.jpg

385 ms

advert.jpg

advert.jpg

388 ms

intro.jpg

intro.jpg

380 ms

Maintenance.jpg

Maintenance.jpg

381 ms

about.jpg

about.jpg

381 ms

site.jpg

site.jpg

397 ms

safer.gif

safer.gif

410 ms

visit.gif

visit.gif

381 ms

serv

serv

368 ms

geov2.js

geov2.js

19960 ms

contact.jpg

contact.jpg

343 ms

ebay.jpg

ebay.jpg

343 ms

donate.gif

donate.gif

341 ms

Guestbook.jpg

Guestbook.jpg

351 ms

links.jpg

links.jpg

352 ms

reclaimyourinbox_small.png

reclaimyourinbox_small.png

365 ms

__utm.gif

__utm.gif

60 ms

1160500.jpg

1160500.jpg

381 ms

db0a2d9df69a81183a342a734499470c

db0a2d9df69a81183a342a734499470c

116 ms

Accessibility Review

dual-reference.com accessibility score

81

Accessibility Issues

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

dual-reference.com best practices score

67

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

SEO Factors

dual-reference.com SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dual-reference.com 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 Dual-reference.com main page’s claimed encoding is . 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

dual-reference.com

Open Graph description is not detected on the main page of Dual Reference. 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: