Tools & Wizards About Us
tokyooperacity.co.jp screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    55% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

tokyooperacity.co.jp

東京オペラシティ東京オペラシティは、新宿のとなり初台にある、オフィス、コンサートホール、美術館、 レストラン、ショップからなる複合施設です。

Page Load Speed

3 sec in total

First Response

313 ms

Resources Loaded

2.1 sec

Page Rendered

579 ms

tokyooperacity.co.jp screenshot

About Website

Welcome to tokyooperacity.co.jp homepage info - get ready to check Tokyooperacity best content for Japan right away, or after learning these important things about tokyooperacity.co.jp

東京オペラシティは、新宿のとなり初台にある、オフィス、コンサートホール、美術館、 レストラン、ショップからなる複合施設です。

Visit tokyooperacity.co.jp

Key Findings

We analyzed Tokyooperacity.co.jp page load time and found that the first response time was 313 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

tokyooperacity.co.jp performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value16.1 s

0/100

25%

SI (Speed Index)

Value7.8 s

23/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0.968

2/100

15%

TTI (Time to Interactive)

Value7.5 s

47/100

10%

Network Requests Diagram

www.tokyooperacity.co.jp

313 ms

www.tokyooperacity.co.jp

333 ms

default.css

144 ms

index.css

190 ms

swiper.css

207 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 84% of them (26 requests) were addressed to the original Tokyooperacity.co.jp, 6% (2 requests) were made to Cdn.jsdelivr.net and 3% (1 request) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (333 ms) belongs to the original domain Tokyooperacity.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 30.4 kB (54%)

Content Size

56.5 kB

After Optimization

26.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tokyooperacity.co.jp main page is 56.5 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. 35% of websites need less resources to load. HTML takes 38.6 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 29.8 kB

  • Original 38.6 kB
  • After minification 34.2 kB
  • After compression 8.8 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 4.4 kB, which is 11% 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 29.8 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 2.0 kB
  • After minification 2.0 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. Tokyooperacity images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 60 B

  • Original 9.9 kB
  • After minification 9.9 kB
  • After compression 9.9 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

-9%

Potential reduce by 537 B

  • Original 6.0 kB
  • After minification 6.0 kB
  • After compression 5.4 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. Tokyooperacity.co.jp has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (38%)

Requests Now

29

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tokyooperacity. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.tokyooperacity.co.jp

www.tokyooperacity.co.jp

313 ms

www.tokyooperacity.co.jp

www.tokyooperacity.co.jp

333 ms

default.css

default.css

144 ms

index.css

index.css

190 ms

swiper.css

swiper.css

207 ms

swiper-bundle.min.css

swiper-bundle.min.css

16 ms

jquery-3.6.1.min.js

jquery-3.6.1.min.js

22 ms

jquery-plugin.js

jquery-plugin.js

191 ms

swiper-bundle.min.js

swiper-bundle.min.js

18 ms

swiper_plugin.js

swiper_plugin.js

201 ms

log.js

log.js

205 ms

jquery.lazyload.min.js

jquery.lazyload.min.js

222 ms

jquery.matchHeight.js

jquery.matchHeight.js

262 ms

css2

css2

34 ms

js

js

77 ms

spacer_banner.gif

spacer_banner.gif

88 ms

spinner.gif

spinner.gif

84 ms

top_culture_spinner.gif

top_culture_spinner.gif

86 ms

footer_minibnr_spinner.gif

footer_minibnr_spinner.gif

85 ms

logo_3lines.svg

logo_3lines.svg

89 ms

ico_insta.png

ico_insta.png

88 ms

ico_line.svg

ico_line.svg

146 ms

ico_event.svg

ico_event.svg

127 ms

ico_gourmet.svg

ico_gourmet.svg

127 ms

ico_shop.svg

ico_shop.svg

129 ms

ico_floor.svg

ico_floor.svg

139 ms

ico_culture.svg

ico_culture.svg

140 ms

ico_info.svg

ico_info.svg

179 ms

ico_access.svg

ico_access.svg

183 ms

ico_office.svg

ico_office.svg

181 ms

ico_new.svg

ico_new.svg

186 ms

Accessibility Review

tokyooperacity.co.jp accessibility score

93

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

Heading elements are not in a sequentially-descending order

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

tokyooperacity.co.jp best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

tokyooperacity.co.jp SEO score

92

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

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 Tokyooperacity.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 Tokyooperacity.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

tokyooperacity.co.jp

Open Graph data is detected on the main page of Tokyooperacity. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: