Access koubundo.co.jp. 赤ちゃん筆・胎毛筆の光文堂【公式】

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

5/100

10%

LCP (Largest Contentful Paint)

Value11.4 s

0/100

25%

SI (Speed Index)

Value20.2 s

0/100

10%

TBT (Total Blocking Time)

Value110 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value1.058

2/100

15%

TTI (Time to Interactive)

Value7.3 s

50/100

10%

koubundo.info

636 ms

koubundo.info

863 ms

reset.css

586 ms

cmn.css

780 ms

pc.css

587 ms

Our browser made a total of 120 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Koubundo.co.jp, 2% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (12.4 sec) relates to the external source Koubundo.info.

Content Size

7.5 MB

After Optimization

7.2 MB

In fact, the total size of Koubundo.co.jp main page is 7.5 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 60% of websites need less resources to load. Images take 7.2 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 61.7 kB

Original 73.5 kB
After minification 61.8 kB
After compression 11.8 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. This page needs HTML code to be minified as it can gain 11.7 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 61.7 kB or 84% of the original size.

Image Optimization

-3%

Potential reduce by 207.6 kB

Original 7.2 MB
After minification 7.0 MB

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. Koubundo images are well optimized though.

JavaScript Optimization

-37%

Potential reduce by 68.1 kB

Original 182.9 kB
After minification 182.9 kB
After compression 114.8 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 68.1 kB or 37% of the original size.

CSS Optimization

-39%

Potential reduce by 17.8 kB

Original 45.9 kB
After minification 45.9 kB
After compression 28.1 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. Koubundo.co.jp needs all CSS files to be minified and compressed as it can save up to 17.8 kB or 39% of the original size.

Requests Now

116

After Optimization

102

The browser has sent 116 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Koubundo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

High

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

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

These items highlight common accessibility best practices.

High

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

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

JA
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Koubundo.co.jp 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 Koubundo.co.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

koubundo.co.jp

Open Graph data is detected on the main page of Koubundo. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

赤ちゃん筆・胎毛筆の光文堂【公式】

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

koubundo.info

koubundo.info

reset.css

cmn.css

pc.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

koubundo.info

koubundo.info

reset.css

cmn.css

pc.css

tablet.css

smart.css

jquery.min.js

imgLiquid.js

slider-pro.css

jquery.sliderPro.js

common.js

jquery.inview.js

platform.js

conversion.js

platform.js

analytics.js

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