Access bluenotejazzfestival.jp. Blue Note ジャズフェスティバル in JAPAN 2025【公式イベント】

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value41.4 s

0/100

25%

SI (Speed Index)

Value27.8 s

0/100

10%

TBT (Total Blocking Time)

Value7,370 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.73

6/100

15%

TTI (Time to Interactive)

Value36.6 s

0/100

10%

bluenotejazzfestival.jp

522 ms

bluenotejazzfestival.jp

3476 ms

gtm.js

92 ms

js

139 ms

wp-emoji-release.min.js

321 ms

Our browser made a total of 84 requests to load all elements on the main page. We found that 61% of them (51 requests) were addressed to the original Bluenotejazzfestival.jp, 10% (8 requests) were made to Youtube.com and 8% (7 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (4.3 sec) belongs to the original domain Bluenotejazzfestival.jp.

Content Size

11.3 MB

After Optimization

9.5 MB

In fact, the total size of Bluenotejazzfestival.jp main page is 11.3 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. 65% of websites need less resources to load. Images take 10.7 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 130.3 kB

Original 149.0 kB
After minification 124.2 kB
After compression 18.7 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. This page needs HTML code to be minified as it can gain 24.8 kB, which is 17% 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 130.3 kB or 87% of the original size.

Image Optimization

-15%

Potential reduce by 1.6 MB

Original 10.7 MB
After minification 9.1 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. Obviously, Blue Note Jazzfestival needs image optimization as it can save up to 1.6 MB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 5.5 kB

Original 281.9 kB
After minification 281.9 kB
After compression 276.4 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

-4%

Potential reduce by 4.2 kB

Original 111.1 kB
After minification 111.1 kB
After compression 106.9 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. Bluenotejazzfestival.jp has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blue Note Jazzfestival. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[aria-hidden="true"] elements contain focusable descendents

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

[id] attributes on active, focusable elements are not unique

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

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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

EN
Language Claimed

JA
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bluenotejazzfestival.jp can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Japanese language. Our system also found out that Bluenotejazzfestival.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

bluenotejazzfestival.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Blue Note ジャズフェスティバル in JAPAN 2025【公式イベント】

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

bluenotejazzfestival.jp

bluenotejazzfestival.jp

gtm.js

js

wp-emoji-release.min.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

bluenotejazzfestival.jp

bluenotejazzfestival.jp

gtm.js

js

wp-emoji-release.min.js

style.min.css

public.css

style.min.css

css

style.css

jquery.js

jquery-migrate.min.js

login-with-ajax.js

sdk.js

widgets.js

jquery.easing.min.js

modernizr.custom.min.js

css

slick.css

slick-theme.css

slick.min.js

jquery-match-height.js

Logo_110x46.png

public-min.js

comment-reply.min.js

cb-ext.js

cb-scripts.min.js

wp-embed.min.js

Logo_160x67-1.png

loading.gif

top_sl_kv_v4.jpg

top_sl_kv_sp_v4.jpg

thumnail_logo24-378x300.jpg

News_240712_New4-2-378x300.jpg

News_240628_New3-378x300.jpg

News_240611_New2-378x300.jpg

N_Post_240515-378x300.jpg

thumnail_logo24-759x600.jpg

News_240712_New4-2-759x600.jpg

News_240628_New3-759x600.jpg

News_240611_New2-759x600.jpg

N_Post_240515-759x600.jpg

artist_NAS-1-759x600.jpg