Tools & Wizards About Us
zutto.co.jp screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

zutto.co.jp

ずっと使い続けたいモノを集めたセレクトショップ - ＺＵＴＴＯ（ズット）

Page Load Speed

13.1 sec in total

First Response

347 ms

Resources Loaded

12.4 sec

Page Rendered

390 ms

zutto.co.jp screenshot

About Website

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

ずっと愛着を持って使いたいモノを集めたセレクトショップ、ＺＵＴＴＯ「ズット」。愛着をもって長く使ってもらえるモノはギフトにも最適です。

Visit zutto.co.jp

Key Findings

We analyzed Zutto.co.jp page load time and found that the first response time was 347 ms and then it took 12.8 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

zutto.co.jp performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value17.3 s

0/100

25%

SI (Speed Index)

Value23.4 s

0/100

10%

TBT (Total Blocking Time)

Value1,640 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.396

26/100

15%

TTI (Time to Interactive)

Value35.0 s

0/100

10%

Network Requests Diagram

zutto.co.jp

347 ms

www.zutto.co.jp

2032 ms

base.css

335 ms

jquery-1.11.1.js

1165 ms

jquery.carouFredSel-6.2.1.js

833 ms

Our browser made a total of 289 requests to load all elements on the main page. We found that 16% of them (45 requests) were addressed to the original Zutto.co.jp, 74% (215 requests) were made to S3-ap-northeast-1.amazonaws.com and 1% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2.4 sec) relates to the external source S3-ap-northeast-1.amazonaws.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 646.7 kB (9%)

Content Size

7.5 MB

After Optimization

6.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zutto.co.jp main page is 7.5 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. 80% 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 6.7 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 133.5 kB

  • Original 155.9 kB
  • After minification 125.5 kB
  • After compression 22.3 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 30.4 kB, which is 19% 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 133.5 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 10.3 kB

  • Original 6.7 MB
  • After minification 6.7 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. Zutto images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 459.6 kB

  • Original 621.4 kB
  • After minification 417.2 kB
  • After compression 161.8 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 459.6 kB or 74% of the original size.

CSS Optimization

-84%

Potential reduce by 43.3 kB

  • Original 51.3 kB
  • After minification 34.8 kB
  • After compression 8.1 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. Zutto.co.jp needs all CSS files to be minified and compressed as it can save up to 43.3 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 37 (16%)

Requests Now

233

After Optimization

196

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 233 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zutto. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

zutto.co.jp

zutto.co.jp

347 ms

www.zutto.co.jp

www.zutto.co.jp

2032 ms

base.css

base.css

335 ms

jquery-1.11.1.js

jquery-1.11.1.js

1165 ms

jquery.carouFredSel-6.2.1.js

jquery.carouFredSel-6.2.1.js

833 ms

jquery.touchSwipe.min.js

jquery.touchSwipe.min.js

502 ms

selectivizr-min.js

selectivizr-min.js

500 ms

jquery.anchorScroll.js

jquery.anchorScroll.js

501 ms

base.js

base.js

504 ms

loading.js

loading.js

668 ms

remote_replace-6fe2481211a2df0c5b6869f0df963f623a0243fee9feb936b7e3283d88c00b10.js

remote_replace-6fe2481211a2df0c5b6869f0df963f623a0243fee9feb936b7e3283d88c00b10.js

668 ms

effects-a40316e1ca23c3e13f8bb4df98d929f56d9f9da032ede1661fb2d9b7ddc7b9e4.js

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672 ms

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673 ms

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836 ms

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Accessibility Review

zutto.co.jp accessibility score

76

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

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

zutto.co.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

zutto.co.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

    N/A

  • Language Claimed

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zutto.co.jp can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Japanese. Our system also found out that Zutto.co.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

zutto.co.jp

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