Report Summary

  • 26

    Performance

    Renders faster than
    46% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

clubt.jp

デザインTシャツ通販【ClubT】オリジナルTシャツ・オリジナルグッズ作成・販売

Page Load Speed

17.8 sec in total

First Response

582 ms

Resources Loaded

15.2 sec

Page Rendered

2.1 sec

clubt.jp screenshot

About Website

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

ClubT(クラブティー)ではユニークなデザインTシャツや有名キャラクターのコラボグッズを多数販売中!Tシャツをはじめとするオリジナルデザイングッズの通販が無料ではじめられます!チームや自分専用に、オリジナルデザインのTシャツプリントやiPhoneケース・スマホケースの製作も1点から承ります。

Visit clubt.jp

Key Findings

We analyzed Clubt.jp page load time and found that the first response time was 582 ms and then it took 17.3 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

clubt.jp performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value8.4 s

18/100

10%

TBT (Total Blocking Time)

Value490 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.655

8/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

Network Requests Diagram

clubt.jp

582 ms

clubt.jp

2030 ms

top.css

727 ms

common.css

731 ms

AC_RunActiveContent.js

763 ms

Our browser made a total of 355 requests to load all elements on the main page. We found that 61% of them (218 requests) were addressed to the original Clubt.jp, 14% (51 requests) were made to Static.clubt.jp and 6% (21 requests) were made to Pbs.twimg.com. The less responsive or slowest element that took the longest time to load (4.7 sec) relates to the external source Static.clubt.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 714.7 kB (37%)

Content Size

1.9 MB

After Optimization

1.2 MB

In fact, the total size of Clubt.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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 94.8 kB

  • Original 113.8 kB
  • After minification 105.2 kB
  • After compression 19.0 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. 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 94.8 kB or 83% of the original size.

Image Optimization

-17%

Potential reduce by 196.6 kB

  • Original 1.2 MB
  • After minification 991.4 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, ClubT needs image optimization as it can save up to 196.6 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-58%

Potential reduce by 218.0 kB

  • Original 373.4 kB
  • After minification 370.2 kB
  • After compression 155.4 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 218.0 kB or 58% of the original size.

CSS Optimization

-83%

Potential reduce by 205.2 kB

  • Original 247.9 kB
  • After minification 246.7 kB
  • After compression 42.7 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. Clubt.jp needs all CSS files to be minified and compressed as it can save up to 205.2 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 73 (21%)

Requests Now

350

After Optimization

277

The browser has sent 350 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ClubT. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

clubt.jp 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.

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

clubt.jp best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

clubt.jp SEO score

91

Search Engine Optimization Advices

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    EUC-JP

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Clubt.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 Clubt.jp main page’s claimed encoding is euc-jp. 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 data is detected on the main page of ClubT. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: