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city-osaka-sewerage-museum.or.jp screenshot

Report Summary

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    Performance

  • 0

    Accessibility

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    Best Practices

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    SEO

city-osaka-sewerage-museum.or.jp

大阪市下水道科学館

Page Load Speed

4.2 sec in total

First Response

1.2 sec

Resources Loaded

2.8 sec

Page Rendered

164 ms

city-osaka-sewerage-museum.or.jp screenshot

About Website

Click here to check amazing City Osaka Sewerage Museum content for Japan. Otherwise, check out these important facts you probably never knew about city-osaka-sewerage-museum.or.jp

下水道科学館は、下水道の役割をできるだけ多くの人々に知っていただくことを目的に、大阪市の近代下水道事業着手１００周年を記念して建設しました。　さまざまな展示を楽しみながら、下水道のしくみと働きや大阪市の下水道の特徴を学んでいただける参加体験型の施設です。

Visit city-osaka-sewerage-museum.or.jp

Key Findings

We analyzed City-osaka-sewerage-museum.or.jp page load time and found that the first response time was 1.2 sec and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

city-osaka-sewerage-museum.or.jp performance score

0

Network Requests Diagram

city-osaka-sewerage-museum.or.jp

1245 ms

mootools.js

978 ms

caption.js

372 ms

system.css

377 ms

general.css

378 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that all of those requests were addressed to City-osaka-sewerage-museum.or.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain City-osaka-sewerage-museum.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 144.8 kB (51%)

Content Size

286.1 kB

After Optimization

141.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of City-osaka-sewerage-museum.or.jp main page is 286.1 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. Only 10% of websites need less resources to load. Images take 120.5 kB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 29.3 kB

  • Original 31.4 kB
  • After minification 6.0 kB
  • After compression 2.2 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. This page needs HTML code to be minified as it can gain 25.5 kB, which is 81% 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 29.3 kB or 93% of the original size.

Image Optimization

-8%

Potential reduce by 9.9 kB

  • Original 120.5 kB
  • After minification 110.6 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. City Osaka Sewerage Museum images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 61.4 kB

  • Original 84.3 kB
  • After minification 82.2 kB
  • After compression 22.9 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 61.4 kB or 73% of the original size.

CSS Optimization

-88%

Potential reduce by 44.2 kB

  • Original 49.9 kB
  • After minification 31.8 kB
  • After compression 5.7 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. City-osaka-sewerage-museum.or.jp needs all CSS files to be minified and compressed as it can save up to 44.2 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (38%)

Requests Now

16

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of City Osaka Sewerage Museum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

city-osaka-sewerage-museum.or.jp

city-osaka-sewerage-museum.or.jp

1245 ms

mootools.js

mootools.js

978 ms

caption.js

caption.js

372 ms

system.css

system.css

377 ms

general.css

general.css

378 ms

template.css

template.css

1023 ms

slimbox.css

slimbox.css

726 ms

smartRollover.js

smartRollover.js

747 ms

slimbox.js

slimbox.js

773 ms

header.jpg

header.jpg

1063 ms

bt_01.jpg

bt_01.jpg

332 ms

bt_02.jpg

bt_02.jpg

333 ms

bt_03.jpg

bt_03.jpg

355 ms

bt_04.jpg

bt_04.jpg

356 ms

bt_05.jpg

bt_05.jpg

370 ms

left_column_bg.gif

left_column_bg.gif

680 ms

sewerage.jpg

sewerage.jpg

700 ms

kkr.mlit.jpg

kkr.mlit.jpg

747 ms

SEO Factors

city-osaka-sewerage-museum.or.jp SEO score

0

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 City-osaka-sewerage-museum.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 City-osaka-sewerage-museum.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

city-osaka-sewerage-museum.or.jp

Open Graph description is not detected on the main page of City Osaka Sewerage Museum. 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: