21st-amendment.com
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Hosting Provider
shopify.comIP Address
23.227.38.65
Site Location
🇨🇦 Canadavia ip
Server Location
🇨🇦 Ottawa, Canada
ASN
AS13335
Organization
Shopify, Inc.
Server
Cloudflare
CDN
Cloudflare
WAF
Cloudflare
Nameservers
Performance
Core Web Vitals
Weight
Image Optimization
Architecture Stack
Detected Apps
Technology Stack
11 Technologies Detected
Libraries
1CSS Frameworks
1Tag Managers
1CDN
1Customer Support
1Security
1SEO Analysis
21st Amendment Brewery
21st Amendment Brewery is a brewery located in San Leandro, California. Their original location is a brewpub and restaurant in the South Park neighborhood of...
Recommended: 50-60 chars (~142px / 580px)
Recommended: 120-160 chars
Issues (1)
- • Missing H1 tag — every page should have exactly one H1
9 issues found
Upgrade to view detailsCrawlability
Type: index
5 URLs
5 sub-sitemaps
88 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
54d
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+H3
Valid From
13.04.2026
Valid Until
12.07.2026
Subject Alternative Names (1)
SHA-256 Fingerprint
A0:AF:74:7D:2D:0B:B1:BA:B8:BC:DD:1E:DC:FC:D7:34:C0:2C:52:EE...
HTTP Headers
Developer Console
Email Infrastructure
Google Workspace
Score
95
DMARC Policy
Reject (Strictest)
MX Records (5)
+1 more
Domain Information
21st-amendment.com
Created
17.02.1998
Expires
16.02.2032
Last Updated
08.05.2026
Registrar
Network Solutions, LLC
Privacy & Compliance
GDPR Indicators
Mobile Compatibility
Viewport & Responsive Test
width=device-width,initial-scale=1- •Mobile compatibility recommendation preview...
Typography & Readability
swear-text
20px · LH 1.50
2x ratio · ✓ H1→H6
1:1 min contrast
2 fonts
Heading Font
swear-text
Body Font
swear-text
Contrast Ratio
1:1
16 issuesReading Comfort
~37 CPL
Narrow lines✅ Excellent readability: 20px body text is ideal for all devices.
✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).
⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 1.0:1).
✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.
✅ Strong hierarchy: Headlines are 2.0x larger than body text.
✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).
Color Palette
7 unique colorsBusiness & Marketing Stack
2 Tools Detected
1
Categories
2
Total Tools
0
Enterprise
0
Mid-Market
Assessment: Growing marketing technology adoption
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Scripts & Styles
29 Resources
Top Script Sources
Website Identity
21st-amendment.com
Social Profiles
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Historical Analysis & Change Tracking