Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

diamonds.com

Diamonds.com – Create a moment that lasts forever

Page Load Speed

1.2 sec in total

First Response

109 ms

Resources Loaded

941 ms

Page Rendered

108 ms

diamonds.com screenshot

About Website

Click here to check amazing Diamonds content for United States. Otherwise, check out these important facts you probably never knew about diamonds.com

Visit diamonds.com

Key Findings

We analyzed Diamonds.com page load time and found that the first response time was 109 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

diamonds.com performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

90/100

10%

LCP (Largest Contentful Paint)

Value19.5 s

0/100

25%

SI (Speed Index)

Value4.7 s

68/100

10%

TBT (Total Blocking Time)

Value1,590 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.04

99/100

15%

TTI (Time to Interactive)

Value13.0 s

12/100

10%

Network Requests Diagram

diamonds.com

109 ms

Default.aspx

119 ms

Main.css

46 ms

diamonds_styles.css

149 ms

jquery-1.7.2.min.js

256 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 89% of them (25 requests) were addressed to the original Diamonds.com, 7% (2 requests) were made to Google-analytics.com and 4% (1 request) were made to Js-agent.newrelic.com. The less responsive or slowest element that took the longest time to load (437 ms) belongs to the original domain Diamonds.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 184.8 kB (66%)

Content Size

278.3 kB

After Optimization

93.5 kB

In fact, the total size of Diamonds.com main page is 278.3 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. Javascripts take 126.5 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 27.7 kB

  • Original 35.1 kB
  • After minification 23.9 kB
  • After compression 7.4 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 11.2 kB, which is 32% 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 27.7 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 49 B

  • Original 22.3 kB
  • After minification 22.2 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. Diamonds images are well optimized though.

JavaScript Optimization

-59%

Potential reduce by 74.9 kB

  • Original 126.5 kB
  • After minification 119.6 kB
  • After compression 51.6 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 74.9 kB or 59% of the original size.

CSS Optimization

-87%

Potential reduce by 82.1 kB

  • Original 94.4 kB
  • After minification 68.2 kB
  • After compression 12.3 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. Diamonds.com needs all CSS files to be minified and compressed as it can save up to 82.1 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (58%)

Requests Now

26

After Optimization

11

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Diamonds. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

diamonds.com accessibility score

84

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

Form elements do not have associated labels

High

Links do not have a discernible name

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

diamonds.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

diamonds.com SEO score

54

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

High

robots.txt is not valid

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

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

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