Report Summary

  • 17

    Performance

    Renders faster than
    36% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    65% of websites

  • 83

    SEO

    Google-friendlier than
    54% of websites

bluebox.co.jp

総合不動産会社ブルーボックス・ブルボ・BLUE BOX 愛知・岐阜エリアの賃貸・売買検索サイト

Page Load Speed

6.2 sec in total

First Response

495 ms

Resources Loaded

5.3 sec

Page Rendered

463 ms

bluebox.co.jp screenshot

About Website

Click here to check amazing BLUE BOX content for Japan. Otherwise, check out these important facts you probably never knew about bluebox.co.jp

テラスハウス、メゾネットなどの賃貸物件や売買物件を数多く取り扱う総合不動産会社ブルーボックス(ブルボ)。一宮、稲沢、春日井、小牧、岡崎、名古屋をはじめとした愛知県全域の物件、岐阜県、関東地域の物件も賃貸仲介しています。

Visit bluebox.co.jp

Key Findings

We analyzed Bluebox.co.jp page load time and found that the first response time was 495 ms and then it took 5.7 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

bluebox.co.jp performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.0 s

1/100

10%

LCP (Largest Contentful Paint)

Value20.5 s

0/100

25%

SI (Speed Index)

Value20.0 s

0/100

10%

TBT (Total Blocking Time)

Value1,990 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.062

97/100

15%

TTI (Time to Interactive)

Value33.3 s

0/100

10%

Network Requests Diagram

bluebox.co.jp

495 ms

www.bluebox.co.jp

850 ms

import.css

358 ms

style3.css

365 ms

style-pc.css

376 ms

Our browser made a total of 112 requests to load all elements on the main page. We found that 97% of them (109 requests) were addressed to the original Bluebox.co.jp, 2% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Bluebox.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 172.0 kB (39%)

Content Size

437.2 kB

After Optimization

265.2 kB

In fact, the total size of Bluebox.co.jp main page is 437.2 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. 40% of websites need less resources to load. Images take 214.5 kB which makes up the majority of the site volume.

HTML Optimization

-96%

Potential reduce by 46.3 kB

  • Original 48.2 kB
  • After minification 4.8 kB
  • After compression 1.9 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 43.4 kB, which is 90% 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 46.3 kB or 96% of the original size.

Image Optimization

-5%

Potential reduce by 11.5 kB

  • Original 214.5 kB
  • After minification 202.9 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. BLUE BOX images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 97.7 kB

  • Original 153.2 kB
  • After minification 150.7 kB
  • After compression 55.5 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 97.7 kB or 64% of the original size.

CSS Optimization

-77%

Potential reduce by 16.5 kB

  • Original 21.4 kB
  • After minification 15.0 kB
  • After compression 4.9 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. Bluebox.co.jp needs all CSS files to be minified and compressed as it can save up to 16.5 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 38 (36%)

Requests Now

107

After Optimization

69

The browser has sent 107 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BLUE BOX. 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 from 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

bluebox.co.jp accessibility score

80

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

bluebox.co.jp best practices score

83

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

SEO Factors

bluebox.co.jp SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

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

    EUC-JP

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bluebox.co.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 Bluebox.co.jp main page’s claimed encoding is euc-jp. 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 BLUE BOX. 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: