Access tokyo-skytreetown.jp. 東京スカイツリータウンについて

name

value

score

weighting

FCP (First Contentful Paint)

Value7.6 s

1/100

10%

LCP (Largest Contentful Paint)

Value12.8 s

0/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value1,050 ms

25/100

30%

CLS (Cumulative Layout Shift)

Value0.083

93/100

15%

TTI (Time to Interactive)

Value16.8 s

5/100

10%

tokyo-skytreetown.jp

650 ms

common.css

303 ms

top.css

321 ms

jquery-1.6.1.min.js

803 ms

smoothscroll.js

324 ms

Our browser made a total of 110 requests to load all elements on the main page. We found that 90% of them (99 requests) were addressed to the original Tokyo-skytreetown.jp, 3% (3 requests) were made to Tokyo-solamachi.jp and 2% (2 requests) were made to Tokyo-skytree.jp. The less responsive or slowest element that took the longest time to load (3.6 sec) belongs to the original domain Tokyo-skytreetown.jp.

Content Size

1.0 MB

After Optimization

723.4 kB

In fact, the total size of Tokyo-skytreetown.jp main page is 1.0 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. 30% of websites need less resources to load. Images take 630.4 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 22.4 kB

Original 28.1 kB
After minification 23.1 kB
After compression 5.8 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. This page needs HTML code to be minified as it can gain 5.0 kB, which is 18% 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 22.4 kB or 79% of the original size.

Image Optimization

-6%

Potential reduce by 39.1 kB

Original 630.4 kB
After minification 591.3 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. Tokyo Skytreetown images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 208.0 kB

Original 328.7 kB
After minification 305.1 kB
After compression 120.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 208.0 kB or 63% of the original size.

CSS Optimization

-81%

Potential reduce by 24.7 kB

Original 30.4 kB
After minification 21.2 kB
After compression 5.7 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. Tokyo-skytreetown.jp needs all CSS files to be minified and compressed as it can save up to 24.7 kB or 81% of the original size.

Requests Now

109

After Optimization

The browser has sent 109 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tokyo Skytreetown. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 6 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 the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

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>).

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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

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 Tokyo-skytreetown.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 Tokyo-skytreetown.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

tokyo-skytreetown.jp

Open Graph description is not detected on the main page of Tokyo Skytreetown. 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

東京スカイツリータウンについて｜東京ソラマチ

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

tokyo-skytreetown.jp

common.css

top.css

jquery-1.6.1.min.js

smoothscroll.js

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

tokyo-skytreetown.jp

common.css

top.css

jquery-1.6.1.min.js

smoothscroll.js

heightLine.js

common.js

inews.js

skt.js

jquery.min.js

jquery.colorbox.js

jquery.showcase.1.0.js

reset.css

structure.css

module.css

suggest.css

towninews.js

weatherimg.jpg

header_sitelogo.png

header_group_logo.gif

btn_lang_jp_select.gif

btn_lang_en.gif

btn_search.gif

header_groupmenu01.png

header_groupmenu02.png

header_groupmenu03.png

header_groupmenu04.png

btn_related_nav01.gif

btn_related_nav02.gif

btn_related_nav03.gif

btn_related_nav04.gif

top_201423.jpg

top_tx01.gif

news_ic03.gif

icon_pdf.gif

top_aside_im01.gif

top_aside_im02.gif

top_aside_im03.gif

top_aside_im04.gif

top_bnr_mobaile.gif

top_bnr_mailmagazine.gif

top_bnr_admenu.gif

top_bnr_bombo.gif