Tools & Wizards About Us
leatherworks.jp screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

leatherworks.jp

レザークラフト革材料通販販売のレザーワークス

Page Load Speed

7.9 sec in total

First Response

528 ms

Resources Loaded

6.6 sec

Page Rendered

797 ms

leatherworks.jp screenshot

About Website

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

レザークラフト材料通販のレザーワークスでは、ヌメ革を中心として輸入革、国産革をはじめ裁ち革、ベルト、道具、染料、金具、コンチョ、スタッズ、ビーズ、書籍などを激安特価で通販販売しています。

Visit leatherworks.jp

Key Findings

We analyzed Leatherworks.jp page load time and found that the first response time was 528 ms and then it took 7.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

leatherworks.jp performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value9.6 s

0/100

25%

SI (Speed Index)

Value9.4 s

12/100

10%

TBT (Total Blocking Time)

Value390 ms

68/100

30%

CLS (Cumulative Layout Shift)

Value0.039

100/100

15%

TTI (Time to Interactive)

Value11.5 s

18/100

10%

Network Requests Diagram

leatherworks.jp

528 ms

www.leatherworks-j.com

1027 ms

ocnkiconf.min.css

328 ms

ocnk.min.css

817 ms

template.css

487 ms

Our browser made a total of 145 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Leatherworks.jp, 99% (143 requests) were made to Leatherworks-j.com and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Leatherworks-j.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.4 MB (59%)

Content Size

5.8 MB

After Optimization

2.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Leatherworks.jp main page is 5.8 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. 60% of websites need less resources to load. Images take 5.3 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 222.9 kB

  • Original 245.3 kB
  • After minification 187.9 kB
  • After compression 22.4 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 57.4 kB, which is 23% 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 222.9 kB or 91% of the original size.

Image Optimization

-60%

Potential reduce by 3.2 MB

  • Original 5.3 MB
  • After minification 2.1 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. Obviously, Leatherworks needs image optimization as it can save up to 3.2 MB or 60% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 51 B

  • Original 160.9 kB
  • After minification 160.9 kB
  • After compression 160.9 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

-6%

Potential reduce by 5.1 kB

  • Original 79.4 kB
  • After minification 79.4 kB
  • After compression 74.3 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. Leatherworks.jp has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 16 (11%)

Requests Now

142

After Optimization

126

  • Images
  • JavaScript
  • CSS

The browser has sent 142 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Leatherworks. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

leatherworks.jp

leatherworks.jp

528 ms

www.leatherworks-j.com

www.leatherworks-j.com

1027 ms

ocnkiconf.min.css

ocnkiconf.min.css

328 ms

ocnk.min.css

ocnk.min.css

817 ms

template.css

template.css

487 ms

201710201439537cad24.css

201710201439537cad24.css

492 ms

jquery.min.js

jquery.min.js

704 ms

js

js

83 ms

underscore.js

underscore.js

370 ms

swiper-bundle.min.js

swiper-bundle.min.js

586 ms

photoswipe.min.js

photoswipe.min.js

487 ms

photoswipe-ui-default.min.js

photoswipe-ui-default.min.js

494 ms

common-min.js

common-min.js

548 ms

ocnk-min.js

ocnk-min.js

844 ms

ranking-tab-min.js

ranking-tab-min.js

843 ms

srvc.png

srvc.png

201 ms

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205 ms

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199 ms

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201 ms

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200 ms

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276 ms

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326 ms

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820 ms

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350 ms

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354 ms

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372 ms

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407 ms

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487 ms

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526 ms

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531 ms

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558 ms

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568 ms

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648 ms

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700 ms

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709 ms

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744 ms

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729 ms

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810 ms

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1049 ms

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886 ms

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1262 ms

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1216 ms

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1204 ms

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1219 ms

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1400 ms

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1420 ms

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1253 ms

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1238 ms

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1190 ms

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1182 ms

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1257 ms

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1252 ms

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1297 ms

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1221 ms

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1226 ms

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1419 ms

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1221 ms

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1231 ms

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1240 ms

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1214 ms

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1389 ms

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1222 ms

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1210 ms

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1222 ms

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1255 ms

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1228 ms

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1427 ms

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1242 ms

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1210 ms

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1184 ms

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1328 ms

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1139 ms

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1157 ms

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1124 ms

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1202 ms

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1185 ms

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1176 ms

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1357 ms

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1196 ms

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1226 ms

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1177 ms

07.png

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1332 ms

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1127 ms

07b_tape.png

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1143 ms

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1182 ms

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1216 ms

08.png

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1181 ms

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1383 ms

08b_kobatoko.png

08b_kobatoko.png

1149 ms

08c_oil.png

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1226 ms

09a_senryou.png

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1210 ms

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1202 ms

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1202 ms

14.png

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1144 ms

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1207 ms

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1185 ms

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1200 ms

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1199 ms

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1169 ms

15.png

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1308 ms

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1146 ms

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1187 ms

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1199 ms

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1143 ms

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1125 ms

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1145 ms

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1160 ms

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1184 ms

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1160 ms

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1119 ms

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1125 ms

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1124 ms

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1159 ms

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1143 ms

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1089 ms

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1100 ms

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1121 ms

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1074 ms

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1111 ms

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1059 ms

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1064 ms

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1102 ms

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1084 ms

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1098 ms

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1030 ms

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1020 ms

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1057 ms

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1060 ms

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1080 ms

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1106 ms

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1031 ms

Accessibility Review

leatherworks.jp accessibility score

88

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

leatherworks.jp best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

leatherworks.jp SEO score

83

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 uses legible font sizes

High

Tap targets are not sized appropriately

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 Leatherworks.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 Leatherworks.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

leatherworks.jp

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