Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

tpo.or.jp

東京フィルハーモニー交響楽団 Tokyo Philharmonic Orchestra 公式サイト

Page Load Speed

6.3 sec in total

First Response

828 ms

Resources Loaded

5.1 sec

Page Rendered

301 ms

tpo.or.jp screenshot

About Website

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

東京フィルハーモニー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購入、CD・DVD情報、クラシック初心者向けコンテンツなど。

Visit tpo.or.jp

Key Findings

We analyzed Tpo.or.jp page load time and found that the first response time was 828 ms and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

tpo.or.jp performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

7/100

10%

LCP (Largest Contentful Paint)

Value11.3 s

0/100

25%

SI (Speed Index)

Value12.6 s

3/100

10%

TBT (Total Blocking Time)

Value2,830 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.043

99/100

15%

TTI (Time to Interactive)

Value18.5 s

3/100

10%

Network Requests Diagram

tpo.or.jp

828 ms

main.css

355 ms

jquery.min.js

891 ms

common.js

372 ms

jquery.slider.min.js

375 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 78% of them (43 requests) were addressed to the original Tpo.or.jp, 5% (3 requests) were made to Staticxx.facebook.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Tpo.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 455.9 kB (23%)

Content Size

2.0 MB

After Optimization

1.5 MB

In fact, the total size of Tpo.or.jp main page is 2.0 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 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 32.5 kB

  • Original 39.3 kB
  • After minification 26.1 kB
  • After compression 6.8 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 13.2 kB, which is 34% 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 32.5 kB or 83% of the original size.

Image Optimization

-18%

Potential reduce by 316.5 kB

  • Original 1.8 MB
  • After minification 1.5 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, Tpo needs image optimization as it can save up to 316.5 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-55%

Potential reduce by 69.2 kB

  • Original 126.9 kB
  • After minification 125.0 kB
  • After compression 57.6 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 69.2 kB or 55% of the original size.

CSS Optimization

-83%

Potential reduce by 37.7 kB

  • Original 45.4 kB
  • After minification 35.7 kB
  • After compression 7.7 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. Tpo.or.jp needs all CSS files to be minified and compressed as it can save up to 37.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (20%)

Requests Now

54

After Optimization

43

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tpo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

tpo.or.jp accessibility score

65

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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>).

Best Practices

tpo.or.jp best practices score

58

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

High

Browser errors were logged to the console

SEO Factors

tpo.or.jp SEO score

58

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

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

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 Tpo.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 Tpo.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 description is not detected on the main page of Tpo. 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: