Report Summary

  • 77

    Performance

    Renders faster than
    85% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

deletershop.jp

デリーターショップ

Page Load Speed

5.2 sec in total

First Response

787 ms

Resources Loaded

4 sec

Page Rendered

450 ms

deletershop.jp screenshot

About Website

Visit deletershop.jp now to see the best up-to-date Deletershop content for Japan and also check out these interesting facts you probably never knew about deletershop.jp

1984年創業、コミック画材の総合メーカー「デリーター(DELETER)」の公式通販サイト。約500種類あるトーン「デリータースクリーン」やマーカーを多くの漫画家の方にも人気。 国内500店舗、海外約100ヵ国で販売しています。

Visit deletershop.jp

Key Findings

We analyzed Deletershop.jp page load time and found that the first response time was 787 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

deletershop.jp performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

33/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

62/100

25%

SI (Speed Index)

Value5.5 s

55/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.092

91/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

deletershop.jp

787 ms

style.css

312 ms

slide.css

315 ms

cal.css

330 ms

simpletree.css

335 ms

Our browser made a total of 138 requests to load all elements on the main page. We found that 76% of them (105 requests) were addressed to the original Deletershop.jp, 13% (18 requests) were made to Pbs.twimg.com and 3% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Deletershop.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 212.8 kB (13%)

Content Size

1.7 MB

After Optimization

1.4 MB

In fact, the total size of Deletershop.jp main page is 1.7 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. 50% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 68.2 kB

  • Original 86.0 kB
  • After minification 80.2 kB
  • After compression 17.8 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 68.2 kB or 79% of the original size.

Image Optimization

-6%

Potential reduce by 86.8 kB

  • Original 1.5 MB
  • After minification 1.4 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. Deletershop images are well optimized though.

JavaScript Optimization

-40%

Potential reduce by 36.6 kB

  • Original 92.0 kB
  • After minification 90.3 kB
  • After compression 55.4 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 36.6 kB or 40% of the original size.

CSS Optimization

-83%

Potential reduce by 21.3 kB

  • Original 25.6 kB
  • After minification 18.4 kB
  • After compression 4.3 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. Deletershop.jp needs all CSS files to be minified and compressed as it can save up to 21.3 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (20%)

Requests Now

137

After Optimization

109

The browser has sent 137 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Deletershop. 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 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

deletershop.jp accessibility score

79

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.

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

Links do not have a discernible name

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

deletershop.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

SEO Factors

deletershop.jp SEO score

92

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

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 Deletershop.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 Deletershop.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 Deletershop. 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: