imageforum.co.jp

https://imageforum.co.jp· First analyzed 24 May 2026· Updated 24 May 2026

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imageforum.co.jp

Mobile

Sponsored

Hosting Provider

HETEML

IP Address

157.7.189.183

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS7506

Organization

HETEML

Server

Apache

Nameservers

dns0.heteml.jp.dns1.heteml.jp.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

654 ms10%

Speed Index

850 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

396 KB

100 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

HETEML

Technology Stack

1 Technologies Detected

Web Servers

Apache

SEO Analysis

F32/100

Meta Tags7/15

Content3/12

Headings0/8

Technical6/25

E-E-A-T0/7

Images1/7

Links3/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

imageforum.co.jpimageforum.co.jp

イメージフォーラム／ダゲレオ出版

映画、ビデオからデジタル映像まで映像アートに関する情報を発信。映像アートをめぐる最新のニュース、作品データ、フェスティバル、ビデオ、雑誌、本など情報など満載。

Title Length16 chars

Recommended: 50-60 chars (~99px / 580px)

Description Length79 chars

Recommended: 120-160 chars

Issues (4)

• Very thin content (39 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (14/14) — critical for accessibility and SEO

14 issues found

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Crawlability

Sitemap

Type: standard

467 URLs

robots.txt

Local SEO

Local Search Readiness

0/100

Poor

15 2

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

Sponsored

AI & LLM Readiness

F27/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

0/25

Citation

3/25

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

Text ratio:8%

Words:38

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

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...

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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.

56/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

11/20

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

Forms & Inputs

10/15

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

9/15

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.

4 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.

46/100

49 mg

CO₂e / view

396.0 KB

Page Weight

90%

Cleaner Than

New Visitor

56 mg

Returning (cached)

28 mg

Annual (10K/mo)

5.9 kg

Emission Segments

Data Center

11 mg

Network

12 mg

Device

26 mg

Resource Breakdown

JavaScript

2.6 KB

Images

389.1 KB

CSS

2.6 KB

HTML

1.8 KB

Green Hosting Not Verified

HETEML

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

38d

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

03.04.2026

Valid Until

02.07.2026

Subject Alternative Names (2)

imageforum.co.jpwww.imageforum.co.jp

SHA-256 Fingerprint

05:7E:5B:AC:EE:C6:EB:39:C1:12:4A:2A:92:94:4E:51:25:08:43:A0...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

none

content-encoding

📦 Gzip(gzip)

content-length

1528

content-type

text/html

date

Sun, 24 May 2026 22:54:59 GMT

last-modified

Sun, 08 Jun 2025 05:35:24 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx-proxy502.heteml.jp

mx-proxy501.heteml.jp

Domain Information

imageforum.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.

27/100

Not Mobile Friendly

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.

5 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

�ｭ�ｳ �ｰ繧ｴ繧ｷ繝�け

WCAG AAA

75/100

Readability

/30

21/30

16px · LH --

Hierarchy

/20

19/20

2x ratio · ✓ H1→H6

WCAG

/25

21/25

8.92:1 min contrast

Performance

/25

14/25

1 font

Heading Font

�ｭ�ｳ �ｰ繧ｴ繧ｷ繝�け

Sans32px

Body Font

�ｭ�ｳ �ｰ繧ｴ繧ｷ繝�け

Sans16px

Contrast Ratio

8.92:1

WCAG AAA (≥7:1)

Reading Comfort

Single Font Family

left aligned

32px

16px

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

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 8.9:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

6 unique colors

21:1 AAA Light

#ffffff

Background· 56.9%

#000000

Text· 9.7%

#351d1d

Primary· 2.4%

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Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

js(2)

Website Identity

imageforum.co.jp

Location detected: 🇯🇵 Japanvia tld

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Last analyzed: 24 May 2026 at 22:55

Historical Analysis & Change Tracking