Report Summary

  • 2

    Performance

    Renders faster than
    20% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

partsclub.jp

ビーズ・手作りアクセサリーパーツ販売|Parts Club(パーツクラブ)

Page Load Speed

15.3 sec in total

First Response

1.3 sec

Resources Loaded

13.1 sec

Page Rendered

803 ms

partsclub.jp screenshot

About Website

Click here to check amazing Parts Club content for Japan. Otherwise, check out these important facts you probably never knew about partsclub.jp

ビーズ・手作りアクセサリーパーツを扱うお店「パーツクラブ(partsclub)」の通信販売を行っているオンラインショップです。商品購入時に使えるポイント制度も実施しています。オリジナルキットや作り方のレシピも充実。

Visit partsclub.jp

Key Findings

We analyzed Partsclub.jp page load time and found that the first response time was 1.3 sec and then it took 13.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

partsclub.jp performance score

2

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value10.0 s

0/100

25%

SI (Speed Index)

Value15.7 s

0/100

10%

TBT (Total Blocking Time)

Value4,820 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value1.083

2/100

15%

TTI (Time to Interactive)

Value28.1 s

0/100

10%

Network Requests Diagram

www.partsclub.jp

1342 ms

style.css

696 ms

display_switch.css

676 ms

cookie_policy.css

712 ms

jquery.js

688 ms

Our browser made a total of 209 requests to load all elements on the main page. We found that 93% of them (195 requests) were addressed to the original Partsclub.jp, 1% (2 requests) were made to Tagdelivery.visumo.io and 1% (2 requests) were made to Contents.visumo.io. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Partsclub.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 135.5 kB (4%)

Content Size

3.8 MB

After Optimization

3.7 MB

In fact, the total size of Partsclub.jp main page is 3.8 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. 70% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 98.6 kB

  • Original 113.0 kB
  • After minification 75.5 kB
  • After compression 14.4 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 37.5 kB, which is 33% 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 98.6 kB or 87% of the original size.

Image Optimization

-0%

Potential reduce by 14.3 kB

  • Original 2.9 MB
  • After minification 2.9 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. Parts Club images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 12.0 kB

  • Original 718.8 kB
  • After minification 717.9 kB
  • After compression 706.7 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

-22%

Potential reduce by 10.6 kB

  • Original 47.6 kB
  • After minification 46.9 kB
  • After compression 37.0 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. Partsclub.jp needs all CSS files to be minified and compressed as it can save up to 10.6 kB or 22% of the original size.

Requests Breakdown

Number of requests can be reduced by 83 (41%)

Requests Now

204

After Optimization

121

The browser has sent 204 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Parts Club. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 26 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

partsclub.jp accessibility score

74

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.

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

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

partsclub.jp best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

partsclub.jp SEO score

79

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Partsclub.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 Partsclub.jp main page’s claimed encoding is shift_jis. 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 Parts Club. 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: