openbookproject.net
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Hosting Provider
IP Address
152.19.134.41
Site Location
🇺🇸 United Statesvia ip
Server Location
🇺🇸 Carrboro, United States
ASN
AS36850
Organization
University of North Carolina at Chapel Hill
Server
Apache
Nameservers
Performance
Core Web Vitals
Weight
Architecture Stack
SEO Analysis
Open Book Project
No description available for this page.
Recommended: 50-60 chars (~108px / 580px)
Recommended: 120-160 chars
Issues (3)
- • Missing meta description — important for click-through rates in SERPs
- • 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 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
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
No WAF
14d
Certificate Details
Type
Domain Validated (DV)
Certificate Authority
Let's Encrypt
Key Algorithm
ECDSA (secp256r1) (256 bit)
Signature
ECDSA with SHA-384
TLS Version
TLSv1.3
HTTP Protocol
HTTP/2
Valid From
24.02.2026
Valid Until
25.05.2026
Subject Alternative Names (20)
SHA-256 Fingerprint
59:C1:1D:17:E0:47:2A:8C:70:9A:39:88:E2:9A:0E:96:E3:2B:60:25...
Recommendations
Security recommendation preview
HTTP Headers
Developer Console
Email Infrastructure
Custom Mail Server
Score
0
Domain Information
openbookproject.net
Created
03.03.2002
Expires
03.03.2027
Last Updated
03.02.2024
Registrar
NameCheap, Inc.
Mobile Compatibility
Viewport & Responsive Test
- •Mobile compatibility recommendation preview...
Typography & Readability
verdana
12px · LH 1.67
2.14:1 min contrast
2 fonts
Heading Font
verdana
Body Font
verdana
Contrast Ratio
2.14:1
2 issuesReading Comfort
Single Font Family
center aligned❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.
⚠️ Hard to read: Flesch score 31/100. Simplify sentences for wider reach.
⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 2.1:1).
❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.
⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.
✅ Lean font stack: 2 font families keeps load times fast.
Color Palette
5 unique colorsSponsored
Scripts & Styles
1 Resources
Top Script Sources
Website Identity
openbookproject.net
Sponsored
Historical Analysis & Change Tracking