Tools & Wizards About Us
tokyo-jb.com screenshot

Report Summary

  • 90

    Performance

    Renders faster than
    91% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

tokyo-jb.com

東京地震防災株式会社

Page Load Speed

3.5 sec in total

First Response

821 ms

Resources Loaded

2.6 sec

Page Rendered

125 ms

tokyo-jb.com screenshot

About Website

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Key Findings

We analyzed Tokyo-jb.com page load time and found that the first response time was 821 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

tokyo-jb.com performance score

90

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

62/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.3 s

100/100

10%

Network Requests Diagram

tokyo-jb.com

821 ms

hpbparts.css

635 ms

container_1Ae_2c_top.css

502 ms

main_1Ae_2c.css

519 ms

user.css

363 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that all of those requests were addressed to Tokyo-jb.com and no external sources were called. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Tokyo-jb.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 132.5 kB (31%)

Content Size

420.9 kB

After Optimization

288.4 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Tokyo-jb.com main page is 420.9 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 375.1 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 6.5 kB

  • Original 9.8 kB
  • After minification 8.6 kB
  • After compression 3.3 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 1.2 kB, which is 12% 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 6.5 kB or 66% of the original size.

Image Optimization

-25%

Potential reduce by 94.0 kB

  • Original 375.1 kB
  • After minification 281.2 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, Tokyo Jb needs image optimization as it can save up to 94.0 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-89%

Potential reduce by 32.0 kB

  • Original 35.9 kB
  • After minification 22.7 kB
  • After compression 3.9 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. Tokyo-jb.com needs all CSS files to be minified and compressed as it can save up to 32.0 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (18%)

Requests Now

17

After Optimization

14

  • Images
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tokyo Jb. 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.

Network Requests Diagram

tokyo-jb.com

tokyo-jb.com

821 ms

hpbparts.css

hpbparts.css

635 ms

container_1Ae_2c_top.css

container_1Ae_2c_top.css

502 ms

main_1Ae_2c.css

main_1Ae_2c.css

519 ms

user.css

user.css

363 ms

logo2.gif

logo2.gif

366 ms

logo1.gif

logo1.gif

367 ms

bg_1Ae_01_01.png

bg_1Ae_01_01.png

193 ms

fbg_1Ae.png

fbg_1Ae.png

170 ms

logo_1Ae.png

logo_1Ae.png

347 ms

top_mainimg_1Ae_01.png

top_mainimg_1Ae_01.png

1268 ms

point_1Ae.png

point_1Ae.png

183 ms

returnTop_1Ae.png

returnTop_1Ae.png

163 ms

mainmenu_1Ae_01.png

mainmenu_1Ae_01.png

322 ms

top_banner_1Ae_01.png

top_banner_1Ae_01.png

500 ms

top_banner_1Ae_02.png

top_banner_1Ae_02.png

365 ms

top_banner_1Ae_03.png

top_banner_1Ae_03.png

378 ms

fpoint_1Ae.png

fpoint_1Ae.png

482 ms

Accessibility Review

tokyo-jb.com accessibility score

95

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.

Best Practices

tokyo-jb.com best practices score

75

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

Serves images with low resolution

SEO Factors

tokyo-jb.com SEO score

67

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tokyo-jb.com 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 Tokyo-jb.com 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

tokyo-jb.com

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