Access mall21.co.jp. 笹塚ショッピングモール TWENTY ONE

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value110 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.218

57/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

mall21.co.jp

589 ms

www.mall21.co.jp

1547 ms

js

126 ms

reset.css

387 ms

style.css

931 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 90% of them (60 requests) were addressed to the original Mall21.co.jp, 3% (2 requests) were made to Google-analytics.com and 3% (2 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Mall21.co.jp.

Content Size

656.9 kB

After Optimization

405.9 kB

In fact, the total size of Mall21.co.jp main page is 656.9 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. 40% of websites need less resources to load. Images take 319.1 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 36.2 kB

Original 45.4 kB
After minification 34.0 kB
After compression 9.2 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 11.4 kB, which is 25% 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 36.2 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 2.3 kB

Original 319.1 kB
After minification 316.8 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. Mall 21 images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 141.5 kB

Original 207.8 kB
After minification 189.2 kB
After compression 66.3 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 141.5 kB or 68% of the original size.

CSS Optimization

-84%

Potential reduce by 71.0 kB

Original 84.6 kB
After minification 64.3 kB
After compression 13.6 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. Mall21.co.jp needs all CSS files to be minified and compressed as it can save up to 71.0 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mall 21. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

High

robots.txt is not valid

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

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 Mall21.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 Mall21.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

mall21.co.jp

Open Graph description is not detected on the main page of Mall 21. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

笹塚ショッピングモール TWENTY ONE

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

mall21.co.jp

www.mall21.co.jp

js

reset.css

style.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

mall21.co.jp

www.mall21.co.jp

js

reset.css

style.css

style_icon.css

foundation-icons.css

jquery.bxslider.css

colorbox.css

jquery-1.11.2.min.js

jquery.cookie.js

jquery.fontSize.js

jquery.bxslider.min.js

carouselPanel.js

colorbox.js

ajaxzip3.js

analytics.js

site_logo.jpg

bigSummerSale2024.jpg

slide_1_summer.jpg

slide_2024year.jpg

n240620su_sm.jpg

n191202in_sm.jpg

changesuzu_sm.jpg

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calendar2024_sm.jpg

e240601yo_sm.jpg

sa240620cr_sm.jpg

e240622sp_sm.jpg

e240623fl_sm.jpg

sa240627gy_sm.jpg

e240630ca_sm.jpg

bn_sasazukasalon.jpg

Instagram_qr.jpg

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