Report Summary

  • 47

    Performance

    Renders faster than
    66% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

artclay.co.jp

銀粘土アートクレイシルバー公式サイト【アクセサリー作り初心者の方へ】

Page Load Speed

5.4 sec in total

First Response

703 ms

Resources Loaded

4.2 sec

Page Rendered

465 ms

artclay.co.jp screenshot

About Website

Click here to check amazing Artclay content for Japan. Otherwise, check out these important facts you probably never knew about artclay.co.jp

粘土が純銀になる!驚きの素材「アートクレイシルバー」。シルバーアクセサリー作り初心者の方へ銀粘土アートクレイシルバーを使った手作りアクセサリーの楽しさをご紹介するサイトです。全国の体験教室や入門レシピ等を公開しています。あなたも世界に一つだけの指輪を手作りしてみませんか?

Visit artclay.co.jp

Key Findings

We analyzed Artclay.co.jp page load time and found that the first response time was 703 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

artclay.co.jp performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.226

55/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

Network Requests Diagram

artclay.co.jp

703 ms

import.js

347 ms

jquery-1.8.2.min.js

888 ms

cycle.js

717 ms

common.css

381 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 94% of them (66 requests) were addressed to the original Artclay.co.jp, 3% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Image.rakuten.co.jp. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Artclay.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 225.4 kB (12%)

Content Size

1.9 MB

After Optimization

1.7 MB

In fact, the total size of Artclay.co.jp main page is 1.9 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. 30% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 27.3 kB

  • Original 32.8 kB
  • After minification 17.9 kB
  • After compression 5.5 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. This page needs HTML code to be minified as it can gain 14.9 kB, which is 45% 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 27.3 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 16.1 kB

  • Original 1.6 MB
  • After minification 1.6 MB

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. Artclay images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 170.8 kB

  • Original 253.8 kB
  • After minification 236.7 kB
  • After compression 83.1 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 170.8 kB or 67% of the original size.

CSS Optimization

-79%

Potential reduce by 11.3 kB

  • Original 14.3 kB
  • After minification 10.6 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. Artclay.co.jp needs all CSS files to be minified and compressed as it can save up to 11.3 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (28%)

Requests Now

68

After Optimization

49

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Artclay. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

artclay.co.jp accessibility score

65

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

Image elements do not have [alt] attributes

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>).

Best Practices

artclay.co.jp best practices score

50

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

artclay.co.jp SEO score

62

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Artclay.co.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Artclay.co.jp 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

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