Tools & Wizards About Us
tokyo-jazz.com screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 94

    SEO

    Google-friendlier than
    90% of websites

tokyo-jazz.com

東京JAZZ 2023 NEO-SYMPHONIC JAZZ at 芸劇 - Mirage Future -

Page Load Speed

11.9 sec in total

First Response

1.1 sec

Resources Loaded

8.4 sec

Page Rendered

2.4 sec

tokyo-jazz.com screenshot

About Website

Click here to check amazing Tokyo JAZZ content for Japan. Otherwise, check out these important facts you probably never knew about tokyo-jazz.com

2023年8月25日（金）東京JAZZ 2023 NEO-SYMPHONIC JAZZ at 芸劇 - Mirage Future - 開催！東京から発信する最先端のシンフォニック・ジャズ。世界を舞台に活躍するジャズ作曲家・指揮者の挾間美帆が、ジャンルを超えて音楽シーンの今を牽引するアーティストたちと“幻想未来”を描く

Visit tokyo-jazz.com

Key Findings

We analyzed Tokyo-jazz.com page load time and found that the first response time was 1.1 sec and then it took 10.8 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

tokyo-jazz.com performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value13.7 s

0/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value1,370 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0.963

2/100

15%

TTI (Time to Interactive)

Value12.7 s

13/100

10%

Network Requests Diagram

tokyo-jazz.com

1124 ms

style.css

1078 ms

slick-theme.css

342 ms

slick.css

354 ms

jquery.js

967 ms

Our browser made a total of 157 requests to load all elements on the main page. We found that 61% of them (95 requests) were addressed to the original Tokyo-jazz.com, 13% (20 requests) were made to Static.xx.fbcdn.net and 6% (10 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Tokyo-jazz.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 458.3 kB (12%)

Content Size

3.8 MB

After Optimization

3.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tokyo-jazz.com main page is 3.8 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. 70% of websites need less resources to load. Images take 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 82.3 kB

  • Original 104.0 kB
  • After minification 95.6 kB
  • After compression 21.7 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 82.3 kB or 79% of the original size.

Image Optimization

-2%

Potential reduce by 67.4 kB

  • Original 3.3 MB
  • After minification 3.2 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. Tokyo JAZZ images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 218.0 kB

  • Original 302.5 kB
  • After minification 236.9 kB
  • After compression 84.5 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 218.0 kB or 72% of the original size.

CSS Optimization

-85%

Potential reduce by 90.6 kB

  • Original 106.2 kB
  • After minification 103.9 kB
  • After compression 15.5 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-jazz.com needs all CSS files to be minified and compressed as it can save up to 90.6 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 43 (29%)

Requests Now

148

After Optimization

105

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 148 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tokyo JAZZ. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

tokyo-jazz.com

tokyo-jazz.com

1124 ms

style.css

style.css

1078 ms

slick-theme.css

slick-theme.css

342 ms

slick.css

slick.css

354 ms

jquery.js

jquery.js

967 ms

jquery.ba-throttle-debounce.min.js

jquery.ba-throttle-debounce.min.js

375 ms

slick.js

slick.js

1143 ms

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530 ms

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Accessibility Review

tokyo-jazz.com accessibility score

98

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.

Best Practices

tokyo-jazz.com best practices score

75

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

tokyo-jazz.com SEO score

94

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

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 Tokyo-jazz.com 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-jazz.com 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-jazz.com

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