Access seaside-park.jp. 東京港南部地区海上公園ガイド

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

63/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

73/100

25%

SI (Speed Index)

Value9.1 s

14/100

10%

TBT (Total Blocking Time)

Value2,190 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.206

60/100

15%

TTI (Time to Interactive)

Value9.3 s

31/100

10%

seaside-park.jp

863 ms

xoops.css

316 ms

import.css

320 ms

top.css

337 ms

rollover.js

345 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 97% of them (88 requests) were addressed to the original Seaside-park.jp, 2% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (3.7 sec) belongs to the original domain Seaside-park.jp.

Content Size

1.4 MB

After Optimization

1.2 MB

In fact, the total size of Seaside-park.jp main page is 1.4 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. 30% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 20.5 kB

Original 26.2 kB
After minification 24.3 kB
After compression 5.7 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 20.5 kB or 78% of the original size.

Image Optimization

-7%

Potential reduce by 83.1 kB

Original 1.3 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. Seaside Park images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 71.6 kB

Original 124.1 kB
After minification 117.8 kB
After compression 52.5 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 71.6 kB or 58% of the original size.

CSS Optimization

-81%

Potential reduce by 25.3 kB

Original 31.3 kB
After minification 22.5 kB
After compression 6.0 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. Seaside-park.jp needs all CSS files to be minified and compressed as it can save up to 25.3 kB or 81% of the original size.

Requests Now

After Optimization

The browser has sent 90 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Seaside Park. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 8 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.

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

Links do not have a discernible name

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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

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

Language and Encoding

Language Detected

JA
Language Claimed

JA
Encoding

EUC-JP

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Seaside-park.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 Seaside-park.jp main page’s claimed encoding is euc-jp. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

seaside-park.jp

Open Graph description is not detected on the main page of Seaside Park. 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

東京港南部地区海上公園ガイド

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

seaside-park.jp

xoops.css

import.css

top.css

rollover.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

seaside-park.jp

xoops.css

import.css

top.css

rollover.js

minmax.js

scrollsmoothly.js

switchfontsize.js

index.php

jquery.js

jquery.droppy.js

jquery.innerfade.js

functions.js

default.css

module.css

style.css

print.css

bg_body.jpg

bg_container.jpg

bg_top.jpg

bg_header.jpg

img_header_top.png

img_title.png

bg_toolbar.gif

btn_search.gif

headnavi_01.gif

headnavi_02.gif

headnavi_03.gif

navi_01_roll.png

navi_02_roll.png

navi_03_roll.png

navi_04_roll.png

navi_05_roll.png

sttl_subnavi.jpg

subnavi_01.jpg

subnavi_02.jpg

subnavi_03.jpg

subnavi_04.jpg

bnr_restaurant.jpg

bnr_pamphlet.jpg

bnr_links.jpg

img_oi_sports_01.jpg

img_oi_sports_02.jpg