idg.co.jp

https://idg.co.jp· First analyzed 31 May 2026· Updated 31 May 2026

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idg.co.jp

Mobile

Sponsored

Hosting Provider

interQ

IP Address

118.27.100.152

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS7506

Organization

interQ

Server

Nginx

Nameservers

ns-a2.conoha.io.ns-a3.conoha.io.ns-a1.conoha.io.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.6 s10%

Speed Index

2.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.9 MB

59 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv7.0

cms

IDGv1.0.0Custom

Technology Stack

6 Technologies Detected

Analytics

Libraries

CSS Frameworks

Tag Managers

Web Servers

SEO Analysis

D55/100

Meta Tags8/15

Content7/12

Headings3/8

Technical16/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile4/4

Indexability3/3

idg.co.jpidg.co.jp

アイディ株式会社

東京都大田区、品川区などでの投資用不動産、投資物件、収益物件など幅広い業務で利用者様にご納得いただけるアイディ株式会社が運営する不動産情報サイトです。土地の仕入れから設計・監理・販売までトータルに企画。高利回り投資用不動産をご提供します。

Title Length8 chars

Recommended: 50-60 chars (~49px / 580px)

Description Length119 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (18/23) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

8 URLs

8 sub-sitemaps

robots.txt

4 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

F33/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

0/25

Citation

9/25

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

header/footer

Text ratio:3%

Words:103

Token eff.:Too Short

Sections/1K:38.8

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 2.2w

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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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.

75/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

1/15

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

2 recommendations

•Accessibility recommendation preview...

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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.

13/100

488 mg

CO₂e / view

3.9 MB

Page Weight

15%

Cleaner Than

New Visitor

557 mg

Returning (cached)

279 mg

Annual (10K/mo)

58.5 kg

Emission Segments

Data Center

109 mg

Network

117 mg

Device

262 mg

Resource Breakdown

JavaScript

37.3 KB

Images

562.6 KB

CSS

555.3 KB

HTML

8.7 KB

Other

2.7 MB

Green Hosting Not Verified

interQ

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

No WAF

162d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

08.10.2025

Valid Until

09.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.idg.co.jpidg.co.jp

SHA-256 Fingerprint

1E:53:AF:2D:3C:2A:1C:A6:F0:1F:06:52:39:B1:D5:DE:5D:BD:EF:01...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Sun, 31 May 2026 10:07:23 GMT

link

<https://www.idg.co.jp/wp-json/>; rel="https://api.w.org/"

server

nginx

x-content-type-options

nosniff

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mail1052.conoha.ne.jp

Domain Information

idg.co.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

56/100

Mobile Friendly1 breakpoint

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=1.0, minimum-scale=1.0 ,maximum-scale=1.0, user-scalable=0

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Noto Sans JP

WCAG Partial

56/100

Readability

/30

22/30

16px · LH 1.80

Hierarchy

/20

7/20

WCAG

/25

12/25

1:1 min contrast

Performance

/25

15/25

1 font · 1 req

Heading Font

Noto Sans JP

Sans

Body Font

Noto Sans JP

Sans16px

Contrast Ratio

1:1

9 issues

Reading Comfort

~46 CPL

Optimal (45–75)

28px

16px

Minor Second

Scale

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line length: ~46 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFonts

Color Palette

13 unique colors

13.66:1 AAA Light

#ffffff

Background· 27.3%

#332c2c

Other· 6.9%

#a16531

Primary· 8.9%

#dc9c72

Accent· 8.8%

#0a080a

Text· 8.1%

#8699ce

Secondary· 7%

#63381b

Accent· 4.8%

#191e29

Secondary· 4.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(2)local(2)ajax.googleapis.com(1)

Website Identity

idg.co.jp

Location detected: 🇯🇵 Japanvia tld

Sponsored

Last analyzed: 31 May 2026 at 10:07

Historical Analysis & Change Tracking