xhs1991.com
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Hosting Provider
cloudflare.comIP Address
104.21.58.112
Site Location
🇨🇦 Canadavia ip
Server Location
🇨🇦 Toronto, Canada
ASN
AS13335
Organization
Cloudflare, Inc.
Server
Cloudflare
CDN
Cloudflare
WAF
Cloudflare
Nameservers
Performance
Core Web Vitals
Weight
Architecture Stack
Technology Stack
4 Technologies Detected
SEO Analysis
XHS1991.COM:最も権威的なIT認証試験の資料を提供いたします!100%信用できる!
XHS1991.COMは最も高効率的に全面的な国際IT能力認定試験の対応資料を提供して、あなたに楽に試験合格をサポートして、認証資格を手に入れます!
Recommended: 50-60 chars (~282px / 580px)
Recommended: 120-160 chars
Issues (2)
- • 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)
13 issues found
Upgrade to view detailsCrawlability
15 rules
Sitemap reference found
Local 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
No SchemaCitation 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
42d
Certificate Details
Type
Domain Validated (DV)
Certificate Authority
Google Trust Services
Key Algorithm
ECDSA (secp256r1) (256 bit)
Signature
ECDSA with SHA-256
TLS Version
TLSv1.3
HTTP Protocol
HTTP/2+H3
Valid From
02.04.2026
Valid Until
01.07.2026
OCSP Stapling
Enabled
Subject Alternative Names (2)
SHA-256 Fingerprint
74:26:E0:FC:9B:8E:8C:06:68:48:A6:D9:F3:F5:2A:D8:83:3C:05:7F...
Top Recommendations
Security recommendation preview
HTTP Headers
Developer Console
Email Infrastructure
Custom Mail Server
Score
45
MX Records (1)
Domain Information
xhs1991.com
Created
02.04.2001
Expires
02.03.2027
Last Updated
05.12.2025
Registrar
Cloudflare, Inc.
Privacy & Compliance
GDPR Indicators
Mobile Compatibility
Viewport & Responsive Test
- •Mobile compatibility recommendation preview...
Typography & Readability
Arial
12px · LH 1.50
1:1 min contrast
System fonts
Heading Font
Arial
Body Font
Arial
Contrast Ratio
1:1
11 issuesReading Comfort
~31 CPL
Narrow lines❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.
✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).
⚠️ Hard to read: Flesch score 47/100. Simplify sentences for wider reach.
⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.0:1).
❌ 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
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
13 Resources
Top Script Sources
Website Identity
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Historical Analysis & Change Tracking