Tools & Wizards About Us
idj.com screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

idj.com

IDJ Corporation - International Diamond and Jewelry Corporation

Page Load Speed

4.1 sec in total

First Response

190 ms

Resources Loaded

3.3 sec

Page Rendered

620 ms

idj.com screenshot

About Website

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

The International Diamond and Jewelry Corporation has been serving the diamond industry since 1980 helping jewelers sell their unwanted diamonds, and purchase new conflict free diamonds. Jewelers can ...

Visit idj.com

Key Findings

We analyzed Idj.com page load time and found that the first response time was 190 ms and then it took 3.9 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

idj.com performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

62/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value9.1 s

14/100

10%

TBT (Total Blocking Time)

Value1,010 ms

27/100

30%

CLS (Cumulative Layout Shift)

Value0.03

100/100

15%

TTI (Time to Interactive)

Value14.7 s

8/100

10%

Network Requests Diagram

idj.com

190 ms

idj.com

528 ms

bootstrap.min.css

54 ms

css2

50 ms

1b8277c5cae2417eb2c279a07d16c426-1445355318

199 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 66% of them (44 requests) were addressed to the original Idj.com, 7% (5 requests) were made to Gstatic.com and 6% (4 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Idj.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 77.3 kB (7%)

Content Size

1.0 MB

After Optimization

954.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Idj.com main page is 1.0 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. 55% of websites need less resources to load. Images take 692.1 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 35.6 kB

  • Original 45.6 kB
  • After minification 38.8 kB
  • After compression 10.0 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 6.8 kB, which is 15% 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 35.6 kB or 78% of the original size.

Image Optimization

-6%

Potential reduce by 40.1 kB

  • Original 692.1 kB
  • After minification 652.0 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. IDJ images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.5 kB

  • Original 269.5 kB
  • After minification 269.5 kB
  • After compression 268.0 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

-0%

Potential reduce by 21 B

  • Original 24.7 kB
  • After minification 24.7 kB
  • After compression 24.7 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. Idj.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 29 (49%)

Requests Now

59

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IDJ. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

idj.com

idj.com

190 ms

idj.com

idj.com

528 ms

bootstrap.min.css

bootstrap.min.css

54 ms

css2

css2

50 ms

1b8277c5cae2417eb2c279a07d16c426-1445355318

1b8277c5cae2417eb2c279a07d16c426-1445355318

199 ms

api.js

api.js

48 ms

55fdadad14b65de5eb0fa8cf7384f7cc-1704489604

55fdadad14b65de5eb0fa8cf7384f7cc-1704489604

422 ms

eaa80b3fe635ff758a6486ff06a4f9ee-1704489612

eaa80b3fe635ff758a6486ff06a4f9ee-1704489612

469 ms

email-decode.min.js

email-decode.min.js

31 ms

2f3b11a161a4c0becb158a2215aae652-1704402372

2f3b11a161a4c0becb158a2215aae652-1704402372

441 ms

jquery-3.6.0.min.js

jquery-3.6.0.min.js

35 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

79 ms

framework-extras.js

framework-extras.js

302 ms

framework-extras.css

framework-extras.css

279 ms

js

js

130 ms

a11ba61cca390cdfb2d4aca4d41d9826-1704489636

a11ba61cca390cdfb2d4aca4d41d9826-1704489636

466 ms

IDJ-logo.svg

IDJ-logo.svg

441 ms

log-in.svg

log-in.svg

379 ms

menu-02.svg

menu-02.svg

500 ms

x.svg

x.svg

542 ms

diamond-icon.svg

diamond-icon.svg

547 ms

briefcase-icon.svg

briefcase-icon.svg

545 ms

forms-icon.svg

forms-icon.svg

705 ms

hourglass-icon.svg

hourglass-icon.svg

706 ms

latest.webp

latest.webp

880 ms

conflict-free.webp

conflict-free.webp

894 ms

we-buy.webp

we-buy.webp

898 ms

david-navon-new.jpg

david-navon-new.jpg

799 ms

jbt.svg

jbt.svg

907 ms

gia.svg

gia.svg

753 ms

polygon.svg

polygon.svg

989 ms

idex-logo.svg

idex-logo.svg

1039 ms

rapnet.svg

rapnet.svg

1143 ms

vdb-logo.svg

vdb-logo.svg

1158 ms

ja.svg

ja.svg

1128 ms

Pin.svg

Pin.svg

1152 ms

Email.svg

Email.svg

1243 ms

Phone.svg

Phone.svg

1276 ms

IDJ-logo-footer.png

IDJ-logo-footer.png

1420 ms

recaptcha__en.js

recaptcha__en.js

24 ms

mobile-hero.svg

mobile-hero.svg

1740 ms

hero-shot-3.webp

hero-shot-3.webp

1112 ms

white-diamonds.jpg

white-diamonds.jpg

1353 ms

fancy-color-diamonds.jpg

fancy-color-diamonds.jpg

1543 ms

lab-grown-diamonds.jpg

lab-grown-diamonds.jpg

1236 ms

fancy-color-lab-grown.webp

fancy-color-lab-grown.webp

1338 ms

Specials.svg

Specials.svg

1918 ms

about.svg

about.svg

1499 ms

contact.svg

contact.svg

1573 ms

fbevents.js

fbevents.js

133 ms

widget

widget

553 ms

anchor

anchor

73 ms

styles__ltr.css

styles__ltr.css

95 ms

recaptcha__en.js

recaptcha__en.js

103 ms

ajax-loader.gif

ajax-loader.gif

1687 ms

slick.woff

slick.woff

1648 ms

UebCYnqdbF9ngI7DuCagEaT4xpR4mAb5pwZcsRDRe9I.js

UebCYnqdbF9ngI7DuCagEaT4xpR4mAb5pwZcsRDRe9I.js

20 ms

webworker.js

webworker.js

116 ms

logo_48.png

logo_48.png

14 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

24 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

28 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

30 ms

recaptcha__en.js

recaptcha__en.js

13 ms

website

website

301 ms

floatbutton1_0uA5KIDjSJBNGPeiRDI3YtNcjWJ9mZsPq48NM5iMzp7_jWYVkIHbMtgrDX_xil60_.css

floatbutton1_0uA5KIDjSJBNGPeiRDI3YtNcjWJ9mZsPq48NM5iMzp7_jWYVkIHbMtgrDX_xil60_.css

106 ms

floatbutton1_1Ryl7ab5bS3EMDFL5lKgg4WAWvtiplncEpO0WQsNVmUPcM_pmyWrTPtRv18jSN3r_.js

floatbutton1_1Ryl7ab5bS3EMDFL5lKgg4WAWvtiplncEpO0WQsNVmUPcM_pmyWrTPtRv18jSN3r_.js

132 ms

siq_mpWsf52LIPg9mU40fjRdjF6WMUs-Q0VNu4KH07GkhNZGQTRxW2eRyFJLAq9VKCYB_.ttf

siq_mpWsf52LIPg9mU40fjRdjF6WMUs-Q0VNu4KH07GkhNZGQTRxW2eRyFJLAq9VKCYB_.ttf

23 ms

Accessibility Review

idj.com accessibility score

85

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

Best Practices

idj.com best practices score

92

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

Page has valid source maps

SEO Factors

idj.com SEO score

77

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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

idj.com

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