Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

bamboo.co.jp

箱根アルベルゴバンブー・表参道バンブー・小笠原伯爵邸

Page Load Speed

2.8 sec in total

First Response

535 ms

Resources Loaded

2.2 sec

Page Rendered

55 ms

About Website

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

一軒家レストラン(箱根アルベルゴバンブー、表参道バンブー、小笠原伯爵邸)のポータルサイト。邸宅ウエディング、レストラン&カフェ、イベントにご利用ください。

Visit bamboo.co.jp

Key Findings

We analyzed Bamboo.co.jp page load time and found that the first response time was 535 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

bamboo.co.jp performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

27/100

25%

SI (Speed Index)

Value3.8 s

84/100

10%

TBT (Total Blocking Time)

Value430 ms

65/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.1 s

76/100

10%

Network Requests Diagram

bamboo.co.jp

535 ms

bamboo.co.jp

725 ms

initializer.css

180 ms

window.js

358 ms

urchin.js

493 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 81% of them (13 requests) were addressed to the original Bamboo.co.jp, 13% (2 requests) were made to Google-analytics.com and 6% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (725 ms) belongs to the original domain Bamboo.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 20.8 kB (44%)

Content Size

47.1 kB

After Optimization

26.3 kB

In fact, the total size of Bamboo.co.jp main page is 47.1 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 5% of websites need less resources to load. Javascripts take 22.2 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 3.8 kB

  • Original 5.9 kB
  • After minification 5.4 kB
  • After compression 2.1 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 3.8 kB or 64% of the original size.

JavaScript Optimization

-3%

Potential reduce by 626 B

  • Original 22.2 kB
  • After minification 22.1 kB
  • After compression 21.6 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. This website has mostly compressed JavaScripts.

CSS Optimization

-86%

Potential reduce by 16.4 kB

  • Original 19.0 kB
  • After minification 15.9 kB
  • After compression 2.6 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. Bamboo.co.jp needs all CSS files to be minified and compressed as it can save up to 16.4 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (23%)

Requests Now

13

After Optimization

10

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bamboo. 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 JavaScripts and as a result speed up the page load time.

Accessibility Review

bamboo.co.jp accessibility score

83

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

<object> elements do not have alternate text

Best Practices

bamboo.co.jp 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

bamboo.co.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

Document uses plugins

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 Bamboo.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 Bamboo.co.jp 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 Bamboo. 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: