Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

kudakajima.jp

kudakajima.jp

Page Load Speed

3.6 sec in total

First Response

641 ms

Resources Loaded

2.7 sec

Page Rendered

246 ms

kudakajima.jp screenshot

About Website

Welcome to kudakajima.jp homepage info - get ready to check Kudakajima best content right away, or after learning these important things about kudakajima.jp

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Key Findings

We analyzed Kudakajima.jp page load time and found that the first response time was 641 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

kudakajima.jp performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

78/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

27/100

25%

SI (Speed Index)

Value4.5 s

73/100

10%

TBT (Total Blocking Time)

Value260 ms

83/100

30%

CLS (Cumulative Layout Shift)

Value0.012

100/100

15%

TTI (Time to Interactive)

Value6.0 s

65/100

10%

Network Requests Diagram

kudakajima.jp

641 ms

import.css

294 ms

swfobject_modified.js

361 ms

all.js

70 ms

reset.css

156 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 73% of them (19 requests) were addressed to the original Kudakajima.jp, 8% (2 requests) were made to Facebook.com and 8% (2 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Kudakajima.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 77.5 kB (10%)

Content Size

773.7 kB

After Optimization

696.2 kB

In fact, the total size of Kudakajima.jp main page is 773.7 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. 20% of websites need less resources to load. Images take 753.0 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 9.9 kB

  • Original 15.1 kB
  • After minification 14.8 kB
  • After compression 5.2 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. 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 9.9 kB or 66% of the original size.

Image Optimization

-8%

Potential reduce by 63.6 kB

  • Original 753.0 kB
  • After minification 689.4 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. Kudakajima images are well optimized though.

CSS Optimization

-71%

Potential reduce by 4.0 kB

  • Original 5.6 kB
  • After minification 4.0 kB
  • After compression 1.6 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. Kudakajima.jp needs all CSS files to be minified and compressed as it can save up to 4.0 kB or 71% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (13%)

Requests Now

24

After Optimization

21

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kudakajima. 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 CSS and as a result speed up the page load time.

Accessibility Review

kudakajima.jp accessibility score

68

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

kudakajima.jp best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

kudakajima.jp 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 Kudakajima.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 Kudakajima.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 Kudakajima. 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: