seconddialog.com
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Hosting Provider
IP Address
183.90.242.41
Site Location
🇯🇵 Japanvia ip
Server Location
🇯🇵 Chiyoda City, Japan
ASN
AS131965
Organization
XSERVER Inc.
Server
Nginx
Nameservers
Performance
Core Web Vitals
Weight
Image Optimization
Architecture Stack
Technology Stack
35 Technologies Detected
Plugins
22Libraries
3UI Components
2CSS Frameworks
2Icon Libraries
2Fonts
1Customer Support
1Web Servers
1Security
1SEO Analysis
ホーム - Second Dialog
知の探究で新たな未来を現実に
Recommended: 50-60 chars (~113px / 580px)
Recommended: 120-160 chars
Issues (2)
- • Very thin content (33 words). Search engines need substantial content for ranking.
- • Missing H1 tag — every page should have exactly one H1
10 issues found
Upgrade to view detailsLocal SEO
Local Search Readiness
This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.
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AI & LLM Readiness
AI Bot Access
14/14 accessibleMachine Readability
Structured Data
2 JSON-LDCitation Readiness
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Accessibility
WCAG 2.1 Compliance
- •Accessibility recommendation preview...
Carbon Footprint
SWDM v4 · Eco-Score
- •Carbon footprint recommendation preview...
Security Score
HTTPS
WAF
61d
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
Valid From
09.04.2026
Valid Until
08.07.2026
Subject Alternative Names (2)
SHA-256 Fingerprint
EE:6E:BB:04:27:2E:F9:37:98:B8:18:66:3E:75:1A:58:7D:C8:DE:9B...
Top Recommendations
Security recommendation preview
HTTP Headers
Developer Console
Email Infrastructure
Custom Mail Server
Score
45
MX Records (1)
Domain Information
seconddialog.com
Created
30.06.2016
Expires
30.06.2026
Last Updated
03.06.2025
Registrar
GMO Internet Group, Inc. d/b/a Onamae.com
Mobile Compatibility
Viewport & Responsive Test
width=device-width, initial-scale=1- •Mobile compatibility recommendation preview...
Typography & Readability
Times New Roman
16px · LH --
9.4:1 min contrast
1 font · 2 req
Heading Font
Times New Roman
Body Font
Times New Roman
Contrast Ratio
9.4:1
WCAG AAA (≥7:1)Reading Comfort
Single Font Family
left aligned✅ Excellent readability: 16px body text is ideal for all devices.
✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.4:1).
❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.
✅ Lean font stack: 1 font families keeps load times fast.
⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).
Color Palette
8 unique colorsBusiness & Marketing Stack
1 Tools Detected
1
Categories
1
Total Tools
0
Enterprise
0
Mid-Market
Assessment: Growing marketing technology adoption
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Scripts & Styles
30 Resources
Top Script Sources
Website Identity
Second Dialog Corporation
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Historical Analysis & Change Tracking