Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

kiken-kaihi.org

子どもの危険回避研究所

Page Load Speed

3.4 sec in total

First Response

740 ms

Resources Loaded

2.5 sec

Page Rendered

133 ms

kiken-kaihi.org screenshot

About Website

Click here to check amazing Kiken Kaihi content for Japan. Otherwise, check out these important facts you probably never knew about kiken-kaihi.org

ここにサイト説明を入れます

Visit kiken-kaihi.org

Key Findings

We analyzed Kiken-kaihi.org page load time and found that the first response time was 740 ms and then it took 2.7 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

kiken-kaihi.org performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.5 s

100/100

25%

SI (Speed Index)

Value1.8 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.075

95/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

kiken-kaihi.org

740 ms

font.css

328 ms

kikenkaihi.css

336 ms

admcount.cgi

516 ms

logo.gif

508 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that all of those requests were addressed to Kiken-kaihi.org and no external sources were called. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Kiken-kaihi.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 78.8 kB (39%)

Content Size

202.0 kB

After Optimization

123.2 kB

In fact, the total size of Kiken-kaihi.org main page is 202.0 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. Only 10% of websites need less resources to load. Images take 163.8 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 31.8 kB

  • Original 37.0 kB
  • After minification 31.2 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. This page needs HTML code to be minified as it can gain 5.8 kB, which is 16% 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 31.8 kB or 86% of the original size.

Image Optimization

-28%

Potential reduce by 46.2 kB

  • Original 163.8 kB
  • After minification 117.6 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, Kiken Kaihi needs image optimization as it can save up to 46.2 kB or 28% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-65%

Potential reduce by 780 B

  • Original 1.2 kB
  • After minification 1.0 kB
  • After compression 428 B

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. Kiken-kaihi.org needs all CSS files to be minified and compressed as it can save up to 780 B or 65% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (46%)

Requests Now

48

After Optimization

26

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kiken Kaihi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

kiken-kaihi.org accessibility score

65

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

kiken-kaihi.org best practices score

67

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

SEO Factors

kiken-kaihi.org 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

    N/A

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kiken-kaihi.org can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Kiken-kaihi.org main page’s claimed encoding is shift_jis. 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

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