Access irocore.com. 日本人の美の心！日本の色【伝統色のいろは】

Report Summary

About Website

Visit irocore.com now to see the best up-to-date Irocore content for Japan and also check out these interesting facts you probably never knew about irocore.com

日本人の美の心である日本の色（伝統色・和色）の名前の由来や読み方、カラーコードを紹介するサイト。英語版の説明あり。485色の由来。

Visit irocore.com

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

37/100

25%

SI (Speed Index)

Value5.7 s

50/100

10%

TBT (Total Blocking Time)

Value870 ms

33/100

30%

CLS (Cumulative Layout Shift)

Value0.089

92/100

15%

TTI (Time to Interactive)

Value5.7 s

68/100

10%

irocore.com

2241 ms

autoptimize_d1e8269c045aea618b81afd72dec9479.css

364 ms

modernizr-2.6.1.min.js

345 ms

jquery.js

334 ms

jquery.min.js

226 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 57% of them (43 requests) were addressed to the original Irocore.com, 5% (4 requests) were made to Ecx.images-amazon.com and 5% (4 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (6 sec) belongs to the original domain Irocore.com.

Content Size

534.4 kB

After Optimization

228.9 kB

In fact, the total size of Irocore.com main page is 534.4 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. 55% of websites need less resources to load. Javascripts take 364.7 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 72.6 kB

Original 94.8 kB
After minification 94.2 kB
After compression 22.2 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 72.6 kB or 77% of the original size.

Image Optimization

-55%

Potential reduce by 16.5 kB

Original 29.7 kB
After minification 13.2 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, Irocore needs image optimization as it can save up to 16.5 kB or 55% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-50%

Potential reduce by 181.1 kB

Original 364.7 kB
After minification 351.1 kB
After compression 183.5 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 181.1 kB or 50% of the original size.

CSS Optimization

-78%

Potential reduce by 35.3 kB

Original 45.3 kB
After minification 45.2 kB
After compression 9.9 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. Irocore.com needs all CSS files to be minified and compressed as it can save up to 35.3 kB or 78% of the original size.

Requests Now

After Optimization

The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Irocore. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts 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 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

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

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 Irocore.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 Irocore.com 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

irocore.com

Open Graph data is detected on the main page of Irocore. 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

日本人の美の心！日本の色【伝統色のいろは】

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)