kozai-reuse.org

https://kozai-reuse.org· First analyzed 21 May 2026· Updated 21 May 2026

Export

kozai-reuse.org

Mobile

Sponsored

Hosting Provider

DIX Co., Ltd.

IP Address

153.122.75.250

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Shibuya City, Japan

ASN

AS131921

Organization

DIX Co., Ltd.

Server

Nginx

Nameservers

ns1.xdomain.ne.jp.ns2.xdomain.ne.jp.ns3.xdomain.ne.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.3 s10%

Speed Index

1.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

742 KB

48 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

shinminkaCustom

Technology Stack

11 Technologies Detected

Plugins

Ml Slider

Contact Form 7

Siteorigin Panels Simple Lightbox Wpb Advanced Faq

Libraries

CSS Frameworks

Icon Libraries

Web Servers

Security

SEO Analysis

D52/100

Meta Tags10/15

Content2/12

Headings1/8

Technical19/25

E-E-A-T0/7

Images3/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

kozai-reuse.orgkozai-reuse.org

一般社団法人古材リユース推進協会 | 古材を再使用（リユース）することにより循環型社会の形成を推進します。

No description available for this page.

Title Length53 chars

Recommended: 50-60 chars (~326px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (4)

• Missing meta description — important for click-through rates in SERPs
• Very thin content (47 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

6/100

Poor

2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F29/100

Bot Access

20/25

Machine Read.

2/25

Schema Data

0/25

Citation

7/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

navheader/footer

Text ratio:1%

Words:41

Token eff.:Too Short

Sections/1K:40

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

AI readiness recommendation preview...

Upgrade to view recommendations

Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

73/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

13/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

4/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•Accessibility recommendation preview...

Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

47/100

92 mg

CO₂e / view

741.8 KB

Page Weight

80%

Cleaner Than

New Visitor

105 mg

Returning (cached)

52 mg

Annual (10K/mo)

11.0 kg

Emission Segments

Data Center

21 mg

Network

22 mg

Device

49 mg

Resource Breakdown

JavaScript

85.2 KB

Images

498.7 KB

CSS

146.4 KB

HTML

11.5 KB

Green Hosting Not Verified

DIX Co., Ltd.

5 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

71%Good

Static / Informational

HTTPS

No WAF

79d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

11.05.2026

Valid Until

09.08.2026

Subject Alternative Names (3)

kozai-reuse.orgwebmail.kozai-reuse.orgwww.kozai-reuse.org

SHA-256 Fingerprint

D8:20:25:A9:75:86:5A:A5:B7:F7:C1:A3:17:BB:21:69:A1:BF:8F:B9...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Thu, 21 May 2026 22:46:21 GMT

link

<https://kozai-reuse.org/wp-json/>; rel="https://api.w.org/"...

server

nginx

x-cache-status

MISS

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.kozai-reuse.org

Domain Information

kozai-reuse.org

Domain Age

3y 9m

Created

27.07.2022

Expires

27.07.2027

Last Updated

19.05.2026

Registrar

XServer, Inc.

DNSSEC

Not Enabled

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

79/100

Mobile Friendly7 breakpoints

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Helvetica Neue

WCAG Partial

59/100

Readability

/30

18/30

14px · LH 1.43

Hierarchy

/20

8/20

WCAG

/25

14/25

1.57:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

Helvetica Neue

Sans

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

1.57:1

15 issues

Reading Comfort

~40 CPL

Narrow lines

18px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 1.6:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Color Palette

10 unique colors

2.93:1 Fail Light

#ffffff

Background· 43.300000000000004%

#959798

Other· 5.8%

#19100f

Primary· 13.5%

#604e42

Secondary· 7.2%

#5c3a26

Secondary· 6.5%

#c4b19f

Secondary· 6.2%

#836048

Secondary· 5.7%

#391e12

Accent· 4.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

kozai-reuse.org(18)gstatic.com(1)google.com(1)

Website Identity

kozai-reuse.org

3 years old

Location detected: 🇯🇵 Japanvia ip

XServer, Inc.ja

Sponsored

Last analyzed: 21 May 2026 at 22:49

Historical Analysis & Change Tracking