Access concent.co.jp. カタログギフトとハイセンスな内祝いはCONCENT コンセント

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value18.7 s

0/100

25%

SI (Speed Index)

Value19.4 s

0/100

10%

TBT (Total Blocking Time)

Value2,720 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value32.0 s

0/100

10%

concent.co.jp

582 ms

www.concent.co.jp

997 ms

main.css

377 ms

header_menu.js

384 ms

bsn.Crossfader.js

390 ms

Our browser made a total of 135 requests to load all elements on the main page. We found that 76% of them (102 requests) were addressed to the original Concent.co.jp, 4% (5 requests) were made to Tag.ladsp.com and 1% (2 requests) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Concent.co.jp.

Content Size

903.7 kB

After Optimization

740.4 kB

In fact, the total size of Concent.co.jp main page is 903.7 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. 45% of websites need less resources to load. Images take 680.4 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 50.4 kB

Original 65.6 kB
After minification 64.3 kB
After compression 15.2 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 50.4 kB or 77% of the original size.

Image Optimization

-8%

Potential reduce by 56.8 kB

Original 680.4 kB
After minification 623.6 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. Concent images are well optimized though.

JavaScript Optimization

-25%

Potential reduce by 32.3 kB

Original 127.9 kB
After minification 126.7 kB
After compression 95.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 32.3 kB or 25% of the original size.

CSS Optimization

-80%

Potential reduce by 23.8 kB

Original 29.8 kB
After minification 23.5 kB
After compression 6.1 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. Concent.co.jp needs all CSS files to be minified and compressed as it can save up to 23.8 kB or 80% of the original size.

Requests Now

130

After Optimization

The browser has sent 130 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Concent. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[aria-hidden="true"] elements contain focusable descendents

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

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

[id] attributes on active, focusable elements are not unique

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 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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

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

JA
Encoding

UTF-8

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

concent.co.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

カタログギフトとハイセンスな内祝いはCONCENT コンセント

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

concent.co.jp

www.concent.co.jp

main.css

header_menu.js

bsn.Crossfader.js

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

concent.co.jp

www.concent.co.jp

main.css

header_menu.js

bsn.Crossfader.js

toppage.js

bookmark.js

naviplus_suggest.css

naviplus_suggest.js

ld.js

common.css

pagenavi.css

header_menu.css

header.css

search.css

conversion.js

pixel.js

dc.js

inpage_linkid.js

__utm.gif

header_logo.gif

h_youto.png

h_item.png

h_kodawari.png

h_kantan.png

header_cart.png

header_mypage.png

btn_okiniiri_170_b.gif

btn_2nd_site2.gif

bnr_info_170.gif

search_bg2.gif

go_btn.gif

menu_kodawari.gif

menu_koudengaeshi.gif

menu_hikidemono.gif

menu_2.gif

whiteday_bnr_170.gif

member_btn.jpg

bnr_ana_mile_170.gif

bnr_jal_mile_170.gif

bnr_t-point_170_1.gif

sample_seikyu_ban.gif

about_concent1.png