Tools & Wizards About Us
i-diamond.com screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

i-diamond.com

I-Diamond – 日本婚戒 鑽石 珠寶訂製、結婚對戒、訂婚鑽戒、輕珠寶 I-Diamond台灣愛鑽

Page Load Speed

2.9 sec in total

First Response

431 ms

Resources Loaded

2.4 sec

Page Rendered

110 ms

i-diamond.com screenshot

About Website

Welcome to i-diamond.com homepage info - get ready to check I Diamond best content right away, or after learning these important things about i-diamond.com

PTT人氣推薦最火紅日本婚戒品牌，I-Diamond台灣愛鑽嚴選GIA最高規格裸鑽，每顆鑽石完美八心八箭，頂級淨度與完美車工。每只婚戒，鑽戒採用日本硬鉑金材質，展現日本極致工藝，終生保固承諾，穩坐日系婚戒品牌高CP值寶座。

Visit i-diamond.com

Key Findings

We analyzed I-diamond.com page load time and found that the first response time was 431 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

i-diamond.com performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value12.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value31.1 s

0/100

25%

SI (Speed Index)

Value34.7 s

0/100

10%

TBT (Total Blocking Time)

Value1,640 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value23.9 s

1/100

10%

Network Requests Diagram

i-diamond.com

431 ms

analytics.js

8 ms

index_old.php

428 ms

dian1.png

413 ms

linkid.js

6 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 50% of them (4 requests) were addressed to the original I-diamond.com, 38% (3 requests) were made to Google-analytics.com and 13% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain I-diamond.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 15.9 kB (11%)

Content Size

146.4 kB

After Optimization

130.6 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of I-diamond.com main page is 146.4 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. Only 5% of websites need less resources to load. Images take 121.1 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 2.5 kB

  • Original 3.5 kB
  • After minification 3.1 kB
  • After compression 982 B

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 2.5 kB or 72% of the original size.

Image Optimization

-11%

Potential reduce by 13.3 kB

  • Original 121.1 kB
  • After minification 107.8 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, I Diamond needs image optimization as it can save up to 13.3 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 68 B

  • Original 21.9 kB
  • After minification 21.9 kB
  • After compression 21.8 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. This website has mostly compressed JavaScripts.

Requests Breakdown

We found no issues to fix!

Requests Now

7

After Optimization

7

  • AJAX
  • Images
  • JavaScript

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of I Diamond. According to our analytics all requests are already optimized.

Network Requests Diagram

i-diamond.com

i-diamond.com

431 ms

analytics.js

analytics.js

8 ms

index_old.php

index_old.php

428 ms

dian1.png

dian1.png

413 ms

linkid.js

linkid.js

6 ms

collect

collect

3 ms

collect

collect

68 ms

index.jpg

index.jpg

1506 ms

Accessibility Review

i-diamond.com accessibility score

88

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best Practices

i-diamond.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

i-diamond.com SEO score

82

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

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise I-diamond.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese 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 I-diamond.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

i-diamond.com

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