Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

robinfactory.co.jp

ロビンファクトリー – 激安Tシャツプリントやジャンパー・パーカー・キャップ・バッグをオリジナルで作成

Page Load Speed

6.3 sec in total

First Response

1.1 sec

Resources Loaded

4.8 sec

Page Rendered

491 ms

robinfactory.co.jp screenshot

About Website

Welcome to robinfactory.co.jp homepage info - get ready to check Robinfactory best content for Japan right away, or after learning these important things about robinfactory.co.jp

Tシャツ作成のロビンファクトリーは、Tシャツ、キャップ、スタッフジャンパー、タンブラー、ジャンバー、ポロシャツ、パーカー、バンダナ、タンブラー、ストラップ、卒園記念、マグカップ、湯のみ、同人グッズ、ユニフォーム型ストラップ、タスキ、腕章などに、激安価格でプリントや刺繍、転写を行う専門工場です。フルカラー印刷が必要な場合も驚きの価格で卸販売中です。

Visit robinfactory.co.jp

Key Findings

We analyzed Robinfactory.co.jp page load time and found that the first response time was 1.1 sec and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

robinfactory.co.jp performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value16.1 s

0/100

10%

TBT (Total Blocking Time)

Value1,920 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.063

97/100

15%

TTI (Time to Interactive)

Value17.4 s

4/100

10%

Network Requests Diagram

robinfactory.co.jp

1104 ms

import.css

364 ms

top.css

545 ms

common.css

358 ms

urchin.js

8 ms

Our browser made a total of 94 requests to load all elements on the main page. We found that 90% of them (85 requests) were addressed to the original Robinfactory.co.jp, 4% (4 requests) were made to Google-analytics.com and 1% (1 request) were made to Googleadservices.com. The less responsive or slowest element that took the longest time to load (3.3 sec) belongs to the original domain Robinfactory.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 62.2 kB (6%)

Content Size

991.4 kB

After Optimization

929.2 kB

In fact, the total size of Robinfactory.co.jp main page is 991.4 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. 45% of websites need less resources to load. Images take 882.2 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 28.9 kB

  • Original 39.8 kB
  • After minification 38.8 kB
  • After compression 10.9 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 28.9 kB or 73% of the original size.

Image Optimization

-2%

Potential reduce by 14.7 kB

  • Original 882.2 kB
  • After minification 867.4 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. Robinfactory images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 1.0 kB

  • Original 49.6 kB
  • After minification 49.6 kB
  • After compression 48.6 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

-88%

Potential reduce by 17.6 kB

  • Original 19.9 kB
  • After minification 16.4 kB
  • After compression 2.3 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. Robinfactory.co.jp needs all CSS files to be minified and compressed as it can save up to 17.6 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (3%)

Requests Now

92

After Optimization

89

The browser has sent 92 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Robinfactory. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

robinfactory.co.jp accessibility score

95

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Best Practices

robinfactory.co.jp 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

SEO Factors

robinfactory.co.jp SEO score

92

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 uses 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 Robinfactory.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 Robinfactory.co.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 Robinfactory. 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: