Tools & Wizards About Us
kenchiku-bosai.or.jp screenshot

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

kenchiku-bosai.or.jp

（一財）日本建築防災協会｜建築物の防災並びに維持管理制度・技術の調査・研究。資格講習、耐震チェックプログラムの紹介。

Page Load Speed

6.5 sec in total

First Response

1.3 sec

Resources Loaded

5.1 sec

Page Rendered

175 ms

kenchiku-bosai.or.jp screenshot

About Website

Visit kenchiku-bosai.or.jp now to see the best up-to-date Kenchiku Bosai content for Japan and also check out these interesting facts you probably never knew about kenchiku-bosai.or.jp

建築物の防災並びに維持管理制度・技術の調査・研究。資格講習、耐震チェックプログラムの紹介。

Visit kenchiku-bosai.or.jp

Key Findings

We analyzed Kenchiku-bosai.or.jp page load time and found that the first response time was 1.3 sec and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

kenchiku-bosai.or.jp performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

8/100

10%

LCP (Largest Contentful Paint)

Value10.4 s

0/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.09

92/100

15%

TTI (Time to Interactive)

Value7.3 s

50/100

10%

Network Requests Diagram

www.kenchiku-bosai.or.jp

1254 ms

style.css

660 ms

jquery-1.9.1.min.js

5 ms

styles.css

332 ms

jquery.js

1214 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 93% of them (25 requests) were addressed to the original Kenchiku-bosai.or.jp, 4% (1 request) were made to Code.jquery.com and 4% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Kenchiku-bosai.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 235.8 kB (41%)

Content Size

571.7 kB

After Optimization

336.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kenchiku-bosai.or.jp main page is 571.7 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. 15% of websites need less resources to load. Images take 407.6 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 14.7 kB

  • Original 19.5 kB
  • After minification 18.1 kB
  • After compression 4.8 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 14.7 kB or 75% of the original size.

Image Optimization

-31%

Potential reduce by 125.4 kB

  • Original 407.6 kB
  • After minification 282.2 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, Kenchiku Bosai needs image optimization as it can save up to 125.4 kB or 31% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 80.9 kB

  • Original 125.5 kB
  • After minification 124.2 kB
  • After compression 44.6 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 80.9 kB or 64% of the original size.

CSS Optimization

-77%

Potential reduce by 14.8 kB

  • Original 19.2 kB
  • After minification 18.3 kB
  • After compression 4.4 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. Kenchiku-bosai.or.jp needs all CSS files to be minified and compressed as it can save up to 14.8 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (15%)

Requests Now

26

After Optimization

22

  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kenchiku Bosai. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.kenchiku-bosai.or.jp

www.kenchiku-bosai.or.jp

1254 ms

style.css

style.css

660 ms

jquery-1.9.1.min.js

jquery-1.9.1.min.js

5 ms

styles.css

styles.css

332 ms

jquery.js

jquery.js

1214 ms

jquery-migrate.min.js

jquery-migrate.min.js

545 ms

jquery.form.min.js

jquery.form.min.js

688 ms

scripts.js

scripts.js

551 ms

Logo_40wht.gif

Logo_40wht.gif

65 ms

logo.png

logo.png

334 ms

btn_portal.png

btn_portal.png

337 ms

bg_gnav_mainB.png

bg_gnav_mainB.png

335 ms

bg_gnav_main.png

bg_gnav_main.png

842 ms

logo_portal.png

logo_portal.png

446 ms

img_top.jpg

img_top.jpg

1089 ms

icn_arrow1.png

icn_arrow1.png

653 ms

bn_sumaino.gif

bn_sumaino.gif

667 ms

bn_jutakukinyu.gif

bn_jutakukinyu.gif

687 ms

bn_conso.gif

bn_conso.gif

780 ms

reform.gif

reform.gif

1360 ms

banner12.png

banner12.png

1763 ms

banner11.png

banner11.png

1773 ms

banner13.png

banner13.png

1810 ms

banner_seifukoho.png

banner_seifukoho.png

1159 ms

banner14.png

banner14.png

2080 ms

banner_wagaya.png

banner_wagaya.png

2035 ms

banner_boukazairyo.png

banner_boukazairyo.png

1886 ms

Accessibility Review

kenchiku-bosai.or.jp accessibility score

72

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Form elements do not have associated labels

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

kenchiku-bosai.or.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

kenchiku-bosai.or.jp SEO score

85

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

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

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 Kenchiku-bosai.or.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 Kenchiku-bosai.or.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

kenchiku-bosai.or.jp

Open Graph description is not detected on the main page of Kenchiku Bosai. 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: