Report Summary

  • 22

    Performance

    Renders faster than
    41% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

tokyo-skytreetown.jp

東京スカイツリータウン - タワーのある新しい下町へ

Page Load Speed

9.1 sec in total

First Response

650 ms

Resources Loaded

8.2 sec

Page Rendered

181 ms

tokyo-skytreetown.jp screenshot

About Website

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

2012年5月、東京スカイツリーをはじめ、多彩な店舗の集まる東京ソラマチ、プラネタリウム、水族館などが形成する「新しく、にぎわう下町」が誕生。押上(スカイツリー前)駅ととうきょうスカイツリー駅をつなぐ「タワーのある街」です。

Visit tokyo-skytreetown.jp

Key Findings

We analyzed Tokyo-skytreetown.jp page load time and found that the first response time was 650 ms and then it took 8.4 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

tokyo-skytreetown.jp performance score

22

Measured Metrics

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%

Network Requests Diagram

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.

Page Optimization Overview & Recommendations

Page size can be reduced by 257.7 kB (26%)

Content Size

979.7 kB

After Optimization

722.0 kB

In fact, the total size of Tokyo-skytreetown.jp main page is 979.7 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. 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

-59%

Potential reduce by 171.5 kB

  • Original 290.8 kB
  • After minification 267.3 kB
  • After compression 119.3 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 171.5 kB or 59% 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 Breakdown

Number of requests can be reduced by 28 (26%)

Requests Now

109

After Optimization

81

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 Review

tokyo-skytreetown.jp accessibility score

90

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

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

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

tokyo-skytreetown.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

High

Page has valid source maps

SEO Factors

tokyo-skytreetown.jp SEO score

100

Search Engine Optimization Advices

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

    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

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: