Tools & Wizards About Us

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

kawasaki-sym-hall.jp

トップ｜ミューザ川崎シンフォニーホール

Page Load Speed

8.4 sec in total

First Response

551 ms

Resources Loaded

7.1 sec

Page Rendered

829 ms

About Website

Click here to check amazing Kawasaki Sym Hall content for Japan. Otherwise, check out these important facts you probably never knew about kawasaki-sym-hall.jp

ミューザ川崎シンフォニーホールは、「音楽のまち・かわさき」を目指す新しいコンサートホールです。

Visit kawasaki-sym-hall.jp

Key Findings

We analyzed Kawasaki-sym-hall.jp page load time and found that the first response time was 551 ms and then it took 7.9 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

kawasaki-sym-hall.jp performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value27.4 s

0/100

25%

SI (Speed Index)

Value15.2 s

1/100

10%

TBT (Total Blocking Time)

Value890 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value8.8 s

35/100

10%

Network Requests Diagram

kawasaki-sym-hall.jp

551 ms

www.kawasaki-sym-hall.jp

1371 ms

base_pc.css

520 ms

base_sp.css

659 ms

general.css

696 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 84% of them (63 requests) were addressed to the original Kawasaki-sym-hall.jp, 5% (4 requests) were made to Google.com and 3% (2 requests) were made to Googletagmanager.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.

Page Optimization Overview & Recommendations

Page size can be reduced by 442.4 kB (6%)

Content Size

7.4 MB

After Optimization

7.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kawasaki-sym-hall.jp main page is 7.4 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. 55% of websites need less resources to load. Images take 6.9 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 42.1 kB

  • Original 52.3 kB
  • After minification 47.7 kB
  • After compression 10.2 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 42.1 kB or 81% of the original size.

Image Optimization

-3%

Potential reduce by 201.3 kB

  • Original 6.9 MB
  • After minification 6.7 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

-29%

Potential reduce by 99.9 kB

  • Original 339.6 kB
  • After minification 339.1 kB
  • After compression 239.7 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 99.9 kB or 29% of the original size.

CSS Optimization

-80%

Potential reduce by 99.1 kB

  • Original 123.9 kB
  • After minification 88.1 kB
  • After compression 24.7 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. Kawasaki-sym-hall.jp needs all CSS files to be minified and compressed as it can save up to 99.1 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (47%)

Requests Now

73

After Optimization

39

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 73 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 16 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

kawasaki-sym-hall.jp accessibility score

92

Accessibility Issues

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

Buttons do not have an accessible name

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

kawasaki-sym-hall.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

kawasaki-sym-hall.jp SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 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

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