Tools & Wizards About Us
osaka-trampoline.com screenshot

Report Summary

  • 70

    Performance

    Renders faster than
    81% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

osaka-trampoline.com

大阪府トランポリン協会　トップページ

Page Load Speed

6.7 sec in total

First Response

561 ms

Resources Loaded

6 sec

Page Rendered

157 ms

osaka-trampoline.com screenshot

About Website

Visit osaka-trampoline.com now to see the best up-to-date Osaka Trampoline content and also check out these interesting facts you probably never knew about osaka-trampoline.com

トランポリンについて、バッジテスト、大会結果、外規、加盟団体、スケジュール

Visit osaka-trampoline.com

Key Findings

We analyzed Osaka-trampoline.com page load time and found that the first response time was 561 ms and then it took 6.2 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

osaka-trampoline.com performance score

70

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

osaka-trampoline.com

561 ms

osaka-trampoline.com

752 ms

camera.css

219 ms

jquery.min.js

738 ms

jquery.mobile.customized.min.js

515 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 93% of them (41 requests) were addressed to the original Osaka-trampoline.com, 7% (3 requests) were made to Pweb.jp. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Osaka-trampoline.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 577.8 kB (40%)

Content Size

1.5 MB

After Optimization

879.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Osaka-trampoline.com main page is 1.5 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. 25% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 7.5 kB

  • Original 10.2 kB
  • After minification 9.4 kB
  • After compression 2.7 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 7.5 kB or 74% of the original size.

Image Optimization

-41%

Potential reduce by 568.3 kB

  • Original 1.4 MB
  • After minification 825.3 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. Obviously, Osaka Trampoline needs image optimization as it can save up to 568.3 kB or 41% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-3%

Potential reduce by 1.4 kB

  • Original 50.6 kB
  • After minification 50.6 kB
  • After compression 49.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-17%

Potential reduce by 547 B

  • Original 3.2 kB
  • After minification 3.2 kB
  • After compression 2.6 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. Osaka-trampoline.com needs all CSS files to be minified and compressed as it can save up to 547 B or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (7%)

Requests Now

41

After Optimization

38

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Osaka Trampoline. 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 as a result speed up the page load time.

Network Requests Diagram

osaka-trampoline.com

osaka-trampoline.com

561 ms

osaka-trampoline.com

osaka-trampoline.com

752 ms

camera.css

camera.css

219 ms

jquery.min.js

jquery.min.js

738 ms

jquery.mobile.customized.min.js

jquery.mobile.customized.min.js

515 ms

camera.min.js

camera.min.js

533 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

533 ms

index-frame-top.html

index-frame-top.html

177 ms

index-frame-left.html

index-frame-left.html

185 ms

jyouhou-dsp2017.php

jyouhou-dsp2017.php

910 ms

calendar-dsp.php

calendar-dsp.php

933 ms

cnt6.cgi

cnt6.cgi

241 ms

camera_skins.png

camera_skins.png

361 ms

camera-loader.gif

camera-loader.gif

172 ms

001.png

001.png

2351 ms

image.jpg

image.jpg

187 ms

logo1.gif

logo1.gif

226 ms

logo2.gif

logo2.gif

312 ms

button1.gif

button1.gif

364 ms

button2.gif

button2.gif

391 ms

button3.gif

button3.gif

419 ms

button4.gif

button4.gif

415 ms

button5.gif

button5.gif

483 ms

button6.gif

button6.gif

543 ms

button7.gif

button7.gif

560 ms

button8.gif

button8.gif

596 ms

button11.gif

button11.gif

599 ms

button12.gif

button12.gif

663 ms

button13.gif

button13.gif

721 ms

button-download.gif

button-download.gif

729 ms

button9.gif

button9.gif

774 ms

button-JGN.gif

button-JGN.gif

777 ms

button30.gif

button30.gif

858 ms

button73.gif

button73.gif

914 ms

button-jga.gif

button-jga.gif

901 ms

osakagym.gif

osakagym.gif

953 ms

banner-nishinihon.png

banner-nishinihon.png

955 ms

banner-zenkoukou.png

banner-zenkoukou.png

1037 ms

banner-nihon-gakusei.png

banner-nihon-gakusei.png

1069 ms

banner-nishinihon-gakusei.png

banner-nishinihon-gakusei.png

1077 ms

button-agu.gif

button-agu.gif

1142 ms

button-fig.gif

button-fig.gif

1133 ms

hachu.css

hachu.css

173 ms

002.png

002.png

1527 ms

Accessibility Review

osaka-trampoline.com accessibility score

64

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

Best Practices

osaka-trampoline.com 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

osaka-trampoline.com SEO score

67

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

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 Osaka-trampoline.com 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 Osaka-trampoline.com 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

osaka-trampoline.com

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