Report Summary

  • 87

    Performance

    Renders faster than
    90% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

coris.co.jp

コリス株式会社 | 子どもにお菓子を通じて夢を与える

Page Load Speed

3.9 sec in total

First Response

690 ms

Resources Loaded

3.1 sec

Page Rendered

137 ms

coris.co.jp screenshot

About Website

Visit coris.co.jp now to see the best up-to-date Coris content and also check out these interesting facts you probably never knew about coris.co.jp

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Key Findings

We analyzed Coris.co.jp page load time and found that the first response time was 690 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

coris.co.jp performance score

87

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

82/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.1 s

99/100

10%

Network Requests Diagram

coris.co.jp

690 ms

common.css

342 ms

top_page.css

339 ms

rollover.js

349 ms

swfobject.js

520 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that all of those requests were addressed to Coris.co.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Coris.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 60.2 kB (20%)

Content Size

307.0 kB

After Optimization

246.7 kB

In fact, the total size of Coris.co.jp main page is 307.0 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. 20% of websites need less resources to load. Images take 277.1 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 9.0 kB

  • Original 11.1 kB
  • After minification 7.8 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. This page needs HTML code to be minified as it can gain 3.3 kB, which is 30% 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 9.0 kB or 81% of the original size.

Image Optimization

-14%

Potential reduce by 38.8 kB

  • Original 277.1 kB
  • After minification 238.4 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, Coris needs image optimization as it can save up to 38.8 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-62%

Potential reduce by 7.1 kB

  • Original 11.3 kB
  • After minification 11.0 kB
  • After compression 4.2 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 7.1 kB or 62% of the original size.

CSS Optimization

-73%

Potential reduce by 5.4 kB

  • Original 7.4 kB
  • After minification 6.2 kB
  • After compression 2.0 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. Coris.co.jp needs all CSS files to be minified and compressed as it can save up to 5.4 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (17%)

Requests Now

59

After Optimization

49

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coris. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

coris.co.jp accessibility score

88

Accessibility Issues

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

Links do not have a discernible name

Best Practices

coris.co.jp best practices score

75

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

SEO Factors

coris.co.jp SEO score

67

Search Engine Optimization Advices

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 Coris.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 Coris.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

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