Access kawasaki-sym-hall.jp. トップ｜ミューザ川崎シンフォニーホール

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value7.5 s

4/100

25%

SI (Speed Index)

Value10.4 s

8/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.443

21/100

15%

TTI (Time to Interactive)

Value6.3 s

60/100

10%

kawasaki-sym-hall.jp

1737 ms

import.css

392 ms

index.css

399 ms

jquery.jcarousel.css

403 ms

jquery.min.js

67 ms

Our browser made a total of 139 requests to load all elements on the main page. We found that 97% of them (135 requests) were addressed to the original Kawasaki-sym-hall.jp, 1% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (3.9 sec) belongs to the original domain Kawasaki-sym-hall.jp.

Content Size

2.1 MB

After Optimization

1.8 MB

In fact, the total size of Kawasaki-sym-hall.jp main page is 2.1 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 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 56.1 kB

Original 72.7 kB
After minification 68.7 kB
After compression 16.6 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 56.1 kB or 77% of the original size.

Image Optimization

-7%

Potential reduce by 137.6 kB

Original 1.9 MB
After minification 1.8 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. Kawasaki Sym Hall images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 58.8 kB

Original 97.8 kB
After minification 73.2 kB
After compression 39.0 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 58.8 kB or 60% of the original size.

CSS Optimization

-84%

Potential reduce by 47.8 kB

Original 57.0 kB
After minification 34.0 kB
After compression 9.2 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. Kawasaki-sym-hall.jp needs all CSS files to be minified and compressed as it can save up to 47.8 kB or 84% of the original size.

Requests Now

138

After Optimization

108

The browser has sent 138 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kawasaki Sym Hall. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 10 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 keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

High

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

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 Kawasaki-sym-hall.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 Kawasaki-sym-hall.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

kawasaki-sym-hall.jp

Open Graph description is not detected on the main page of Kawasaki Sym Hall. 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

トップ｜ミューザ川崎シンフォニーホール

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

kawasaki-sym-hall.jp

import.css

index.css

jquery.jcarousel.css

jquery.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

kawasaki-sym-hall.jp

import.css

index.css

jquery.jcarousel.css

jquery.min.js

jquery.cookie.js

jquery.tab.js

jquery.rollover.js

jquery.scrolltop.js

heightLine.js

jquery.pulldown.js

jquery.scrollsmoothly.js

sidecal.js

jquery.fadenavi.js

jquery.csschange.js

jquery.jcarousellite.js

jquery.globalmenu.js

jquery.accordion_bottom.js

jquery.ui.core.js

jquery.ui.widget.js

jquery.rf.slideshow.js

mainvisual.js

jquery.jcarousel.min.js

jcarousel.responsive.js

base.css

font.css

general.css

module.css

jquery.colorbox.css

jquery.bxslider.css

analytics.js

IMG_5017-200x100.jpg

7e8af90e86dc9bd704c67113b925e834-200x100.jpg

DSC5949-200x100.jpg

header_logo.gif

header_lang_e.gif

header_lang_j.gif

header_btn_tw.gif

header_btn_fb.gif

header_arrow.gif

header_icon_home.gif

global_bg.gif

global_btn_concert.gif