Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

kokubunji-brass.net

国分寺市交響吹奏楽団公式サイト | 東京・国分寺で1979年より活動している社会人吹奏楽団です。

Page Load Speed

6 sec in total

First Response

1.6 sec

Resources Loaded

4.2 sec

Page Rendered

215 ms

kokubunji-brass.net screenshot

About Website

Click here to check amazing Kokubunji Brass content. Otherwise, check out these important facts you probably never knew about kokubunji-brass.net

東京・国分寺で1979年より活動している社会人吹奏楽団です。

Visit kokubunji-brass.net

Key Findings

We analyzed Kokubunji-brass.net page load time and found that the first response time was 1.6 sec and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

kokubunji-brass.net performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

8/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.171

70/100

15%

TTI (Time to Interactive)

Value4.8 s

78/100

10%

Network Requests Diagram

kokubunji-brass.net

1595 ms

wp-emoji-release.min.js

678 ms

styles.css

684 ms

style.css

671 ms

style.css

859 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 83% of them (29 requests) were addressed to the original Kokubunji-brass.net, 9% (3 requests) were made to S.gravatar.com and 3% (1 request) were made to S0.wp.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Kokubunji-brass.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 229.2 kB (35%)

Content Size

656.3 kB

After Optimization

427.2 kB

In fact, the total size of Kokubunji-brass.net main page is 656.3 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. 25% of websites need less resources to load. Images take 354.6 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 12.1 kB

  • Original 16.3 kB
  • After minification 15.6 kB
  • After compression 4.2 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 12.1 kB or 74% of the original size.

Image Optimization

-6%

Potential reduce by 22.9 kB

  • Original 354.6 kB
  • After minification 331.7 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. Kokubunji Brass images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 111.6 kB

  • Original 181.7 kB
  • After minification 175.1 kB
  • After compression 70.1 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 111.6 kB or 61% of the original size.

CSS Optimization

-80%

Potential reduce by 82.6 kB

  • Original 103.8 kB
  • After minification 97.8 kB
  • After compression 21.1 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. Kokubunji-brass.net needs all CSS files to be minified and compressed as it can save up to 82.6 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (64%)

Requests Now

33

After Optimization

12

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kokubunji Brass. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

kokubunji-brass.net accessibility score

83

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

kokubunji-brass.net best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

kokubunji-brass.net SEO score

89

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 Kokubunji-brass.net 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 Kokubunji-brass.net 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 Kokubunji Brass. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: