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tetsugakudo.jp screenshot

Report Summary

  • 5

    Performance

    Renders faster than
    21% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

tetsugakudo.jp

哲学堂公園公式ホームページ

Page Load Speed

1.9 sec in total

First Response

593 ms

Resources Loaded

1.2 sec

Page Rendered

123 ms

tetsugakudo.jp screenshot

About Website

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

哲学者で東洋大学の創設者である井上円了によって、社会教育や精神修養の場所として、明治37年創設されました。円了の哲学観が視覚的に体現された、世界でも類をみない哲学をテーマとした公園です。2020年国指定名勝になりました。

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Key Findings

We analyzed Tetsugakudo.jp page load time and found that the first response time was 593 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

tetsugakudo.jp performance score

5

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.0 s

1/100

10%

LCP (Largest Contentful Paint)

Value8.8 s

1/100

25%

SI (Speed Index)

Value21.9 s

0/100

10%

TBT (Total Blocking Time)

Value10,800 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.338

33/100

15%

TTI (Time to Interactive)

Value23.9 s

1/100

10%

Network Requests Diagram

tetsugakudo.jp

593 ms

AC_RunActiveContent.js

205 ms

mystyle.css

424 ms

marutetsu.gif

204 ms

bg_global.gif

202 ms

Our browser made a total of 5 requests to load all elements on the main page. We found that all of those requests were addressed to Tetsugakudo.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (593 ms) belongs to the original domain Tetsugakudo.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 13.1 kB (77%)

Content Size

16.9 kB

After Optimization

3.9 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Tetsugakudo.jp main page is 16.9 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Javascripts take 8.0 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 2.0 kB

  • Original 3.0 kB
  • After minification 2.9 kB
  • After compression 990 B

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 2.0 kB or 67% of the original size.

JavaScript Optimization

-80%

Potential reduce by 6.4 kB

  • Original 8.0 kB
  • After minification 5.2 kB
  • After compression 1.6 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 6.4 kB or 80% of the original size.

CSS Optimization

-78%

Potential reduce by 4.6 kB

  • Original 5.9 kB
  • After minification 4.8 kB
  • After compression 1.3 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. Tetsugakudo.jp needs all CSS files to be minified and compressed as it can save up to 4.6 kB or 78% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

4

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tetsugakudo. According to our analytics all requests are already optimized.

Network Requests Diagram

tetsugakudo.jp

tetsugakudo.jp

593 ms

AC_RunActiveContent.js

AC_RunActiveContent.js

205 ms

mystyle.css

mystyle.css

424 ms

marutetsu.gif

marutetsu.gif

204 ms

bg_global.gif

bg_global.gif

202 ms

Accessibility Review

tetsugakudo.jp accessibility score

79

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

High

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

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

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

tetsugakudo.jp 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

tetsugakudo.jp SEO score

92

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tetsugakudo.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Tetsugakudo.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

tetsugakudo.jp

Open Graph description is not detected on the main page of Tetsugakudo. 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: