Tools & Wizards About Us

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

seaside-park.jp

東京港南部地区海上公園ガイド

Page Load Speed

6.4 sec in total

First Response

528 ms

Resources Loaded

5.5 sec

Page Rendered

430 ms

About Website

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

東京港南部地区海上公園は東京都大田区と品川区、港区の東京港に面する16か所の都立海上公園の総称です。 陸上競技場や野球場を有する大井ふ頭中央海浜公園スポーツの森、野鳥観察や釣りが楽しめる大井ふ頭中央海浜公園なぎさの森、キャンプ場や砂浜、スケートボード広場を有する城南島海浜公園など、特徴のある公園があります

Visit seaside-park.jp

Key Findings

We analyzed Seaside-park.jp page load time and found that the first response time was 528 ms and then it took 5.9 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

seaside-park.jp performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value13.3 s

2/100

10%

TBT (Total Blocking Time)

Value1,990 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.216

58/100

15%

TTI (Time to Interactive)

Value20.1 s

2/100

10%

Network Requests Diagram

seaside-park.jp

528 ms

seaside-park.jp

1430 ms

gtm.js

84 ms

js

185 ms

bootstrap.min.css

333 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 52% of them (45 requests) were addressed to the original Seaside-park.jp, 21% (18 requests) were made to Platform.twitter.com and 6% (5 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Seaside-park.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 260.3 kB (14%)

Content Size

1.9 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Seaside-park.jp main page is 1.9 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 95.6 kB

  • Original 113.8 kB
  • After minification 85.6 kB
  • After compression 18.2 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 28.1 kB, which is 25% 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 95.6 kB or 84% of the original size.

Image Optimization

-9%

Potential reduce by 125.2 kB

  • Original 1.4 MB
  • After minification 1.3 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

-10%

Potential reduce by 34.0 kB

  • Original 354.4 kB
  • After minification 354.4 kB
  • After compression 320.4 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

-11%

Potential reduce by 5.6 kB

  • Original 52.5 kB
  • After minification 52.5 kB
  • After compression 46.9 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 5.6 kB or 11% of the original size.

Requests Breakdown

Number of requests can be reduced by 45 (54%)

Requests Now

84

After Optimization

39

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 84 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 36 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

seaside-park.jp accessibility score

92

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.

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

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

High

Definition list items are not wrapped in <dl> elements

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

Links do not have a discernible name

Best Practices

seaside-park.jp best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

seaside-park.jp SEO score

100

Search Engine Optimization Advices

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

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 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 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

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: