Tools & Wizards About Us

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

tmso.or.jp

東京都交響楽団

Page Load Speed

7.2 sec in total

First Response

577 ms

Resources Loaded

5.9 sec

Page Rendered

668 ms

About Website

Visit tmso.or.jp now to see the best up-to-date Tmso content for Japan and also check out these interesting facts you probably never knew about tmso.or.jp

東京都交響楽団公式サイト。コンサートスケジュールやチケット、オーケストラの紹介。

Visit tmso.or.jp

Key Findings

We analyzed Tmso.or.jp page load time and found that the first response time was 577 ms and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

tmso.or.jp performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value40.9 s

0/100

25%

SI (Speed Index)

Value20.3 s

0/100

10%

TBT (Total Blocking Time)

Value470 ms

61/100

30%

CLS (Cumulative Layout Shift)

Value0.059

98/100

15%

TTI (Time to Interactive)

Value36.8 s

0/100

10%

Network Requests Diagram

tmso.or.jp

577 ms

www.tmso.or.jp

1897 ms

js

59 ms

js

106 ms

reset.css

1282 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 97% of them (62 requests) were addressed to the original Tmso.or.jp, 3% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Tmso.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 880.3 kB (9%)

Content Size

9.5 MB

After Optimization

8.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tmso.or.jp main page is 9.5 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. 45% of websites need less resources to load. Images take 8.5 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 84.6 kB

  • Original 97.5 kB
  • After minification 60.9 kB
  • After compression 12.9 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 36.6 kB, which is 38% 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 84.6 kB or 87% of the original size.

Image Optimization

-1%

Potential reduce by 58.4 kB

  • Original 8.5 MB
  • After minification 8.4 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. Tmso images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 249.3 kB

  • Original 351.5 kB
  • After minification 316.5 kB
  • After compression 102.2 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 249.3 kB or 71% of the original size.

CSS Optimization

-86%

Potential reduce by 488.0 kB

  • Original 570.0 kB
  • After minification 465.7 kB
  • After compression 82.0 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. Tmso.or.jp needs all CSS files to be minified and compressed as it can save up to 488.0 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (25%)

Requests Now

61

After Optimization

46

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tmso. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

tmso.or.jp accessibility score

81

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

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

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

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

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

tmso.or.jp best practices score

67

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

tmso.or.jp SEO score

90

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Tmso.or.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 Tmso.or.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 Tmso. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: