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gakkai-web.net

https://gakkai-web.net· First analyzed 17 May 2026· Updated 17 May 2026
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gakkai-web.net
Desktop screenshot of gakkai-web.net
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Mobile

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Hosting Provider

Sony Network Communications Inc.

IP Address

150.249.196.236

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Tokyo, Japan

ASN

AS2527

Organization

Sony Network Communications Inc.

Server

Apache

Nameservers

ns016-oca512frjq47sdll.o.d-53.org.ns016-oca512frjq47sdll.o.d-53.info.ns016-oca512frjq47sdll.o.d-53.jp.

Performance

84

Core Web Vitals

Weight

First Contentful Paint
1.9 s10%
Speed Index
2.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
452 KB
42 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Sony Network Communications Inc.

Technology Stack

2 Technologies Detected

Libraries

1
jQueryv3.6.0

Web Servers

1
Apache

SEO Analysis

F39/100
11
9
3
Meta Tags5/15
Content3/12
Headings1/8
Technical9/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
G
gakkai-web.netgakkai-web.net

学会ウェブネット トーヨー企画株式会社

学術会議トータルサポート・学会ウェブネット

Title Length19 chars

Recommended: 50-60 chars (~117px / 580px)

Description Length21 chars

Recommended: 120-160 chars

Issues (3)

  • • Very thin content (28 words). Search engines need substantial content for ranking.
  • • Missing H1 tag — every page should have exactly one H1
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

12 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

7 rules

Local SEO

Local Search Readiness

5/100
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

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:5%
Words:26
Token eff.:Too Short
Sections/1K:30

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 (11)
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.
B
74/100
10
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
14/20
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
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.
1 recommendation
  • •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.
40/100
A
56 mg
CO₂e / view
451.6 KB
Page Weight
90%
Cleaner Than
New Visitor
64 mg
vs
Returning (cached)
32 mg
Annual (10K/mo)
6.7 kg
Emission Segments
Data Center
13 mg
Network
13 mg
Device
30 mg
Resource Breakdown
JavaScript
97.7 KB
Images
329.4 KB
CSS
16.3 KB
HTML
8.2 KB
Green Hosting Not Verified
Sony Network Communications Inc.
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A+

Security Score

91%Excellent
Static / Informational

HTTPS

No WAF

72d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

30.04.2026

Valid Until

29.07.2026

Subject Alternative Names (2)

gakkai-web.netwww.gakkai-web.net

SHA-256 Fingerprint

04:8F:D0:65:D1:FF:66:7F:58:C7:67:97:F9:E1:11:D4:E6:89:7B:E6...

Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
connection
Keep-Alive
content-length
8102
content-type
text/html
date
Sun, 17 May 2026 23:24:35 GMT
keep-alive
timeout=5, max=100
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mx.securemx.jp

Domain Information

gakkai-web.net

Domain Age
25y 8m

Created

13.09.2000

Expires

13.09.2026

Last Updated

11.09.2025

Registrar

Japan Registry Services Co., Ltd.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
F
30/100
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.
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Lucida Grande

WCAG Partial
56/100
Readability
/30
16/30

12px · LH 1.50

Hierarchy
/20
12/20

1x ratio · ✓ H1→H6

WCAG
/25
14/25

1.87:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Lucida Grande

Sans12px

Body Font

Lucida Grande

Sans12px

Contrast Ratio

1.87:1

10 issues

Reading Comfort

~85 CPL

Wide lines
12px
h1
12px
h2
12px
h3
14px
h4
12px
p
Minor Second
Scale

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Wide lines: ~85 chars/line. Use max-width: 65ch for comfortable reading.

⚠️ Partial contrast: 10 elements below WCAG AA threshold (min 1.9:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

Buy on MyFonts

Color Palette

8 unique colors
Light
#ffffff
Background· 33.99999999999999%
#185fa4
Primary· 10.1%
#21295d
Secondary· 7.8%
#896d6a
Secondary· 7.5%
#74a4bf
Secondary· 5%
#dcc2b7
Secondary· 3.5%

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Scripts & Styles

6 Resources

5
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

toyoaghp(5)

Website Identity

gakkai-web.net

info@toyoag.co.jp
25 years old
Location detected: 🇯🇵 Japanvia ip
Japan Registry Services Co., Ltd.ja

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Last analyzed: 17 May 2026 at 23:24

Historical Analysis & Change Tracking