Access tsutenkaku.co.jp. 通天閣 [公式サイト]｜展望台・タワー｜大阪のおすすめ人気観光スポット（天王寺・あべの・新世界エリア）

name

value

score

weighting

FCP (First Contentful Paint)

Value6.4 s

2/100

10%

LCP (Largest Contentful Paint)

Value13.9 s

0/100

25%

SI (Speed Index)

Value15.6 s

0/100

10%

TBT (Total Blocking Time)

Value10,200 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.584

11/100

15%

TTI (Time to Interactive)

Value19.6 s

2/100

10%

tsutenkaku.co.jp

1593 ms

import.css

351 ms

index.css

521 ms

jquery.js

871 ms

scroll.js

362 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 88% of them (100 requests) were addressed to the original Tsutenkaku.co.jp, 2% (2 requests) were made to Google-analytics.com and 2% (2 requests) were made to Ustream.tv. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Tsutenkaku.co.jp.

Content Size

2.2 MB

After Optimization

1.5 MB

In fact, the total size of Tsutenkaku.co.jp main page is 2.2 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 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 156.3 kB

Original 200.1 kB
After minification 190.3 kB
After compression 43.8 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. 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 156.3 kB or 78% of the original size.

Image Optimization

-2%

Potential reduce by 21.5 kB

Original 1.2 MB
After minification 1.2 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. Tsutenkaku images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 509.7 kB

Original 743.4 kB
After minification 688.7 kB
After compression 233.7 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 509.7 kB or 69% of the original size.

CSS Optimization

-83%

Potential reduce by 53.4 kB

Original 64.7 kB
After minification 57.6 kB
After compression 11.3 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. Tsutenkaku.co.jp needs all CSS files to be minified and compressed as it can save up to 53.4 kB or 83% of the original size.

Requests Now

112

After Optimization

The browser has sent 112 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tsutenkaku. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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.

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.

High

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

High

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

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

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/).

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 Tsutenkaku.co.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 Tsutenkaku.co.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

tsutenkaku.co.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

通天閣 [公式サイト]｜展望台・タワー｜大阪のおすすめ人気観光スポット（天王寺・あべの・新世界エリア）

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

tsutenkaku.co.jp

import.css

index.css

jquery.js

scroll.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

tsutenkaku.co.jp

import.css

index.css

jquery.js

scroll.js

smartRollover.js

slider.css

jquery.easing.1.3.js

jquery.bxSlider.js

jquery.jscrollpane.css

jquery.mousewheel.js

jquery.jscrollpane.js

default.css

global.css

ga.js

11210020

bg_blue.jpg

logo.gif

mishiran.gif

guide_j.gif

guide_e.gif

guide_k.gif

guide_t.gif

guide_c.gif

guide_tai.gif

nav_btn1.gif

nav_btn2.gif

nav_btn3.gif

down2_3_off.gif

down2_1_off.gif

down2_2_off.gif

down2_4_off.gif

nav_btn4.gif

down4_0_off.gif

down4_5_off.gif

down4_1_off.gif

down4_2_off.gif

down4_3_off.gif

down4_4_off.gif

nav_btn5.gif

nav_btn6.gif

nav_btn7.gif

down7_3_off.gif