htmlvalidator.com
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Hosting Provider
cloudflare.comIP Address
104.21.17.146
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
Image Optimization
Architecture Stack
Progressive Web App
SEO Analysis
Powerful CSS & HTML Validation Software for Windows, Mac, and Linux ✅
Download this software to help check and fix HTML, CSS, accessibility, links, SEO (search engine optimization), and more.
Recommended: 50-60 chars (~427px / 580px)
Recommended: 120-160 chars
Issues (0)
5 issues found
Upgrade to view detailsCrawlability
36 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
6/14 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
67d
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
17.04.2026
Valid Until
16.07.2026
OCSP Stapling
Enabled
Subject Alternative Names (2)
SHA-256 Fingerprint
74:C7:86:A8:5C:AC:16:39:AB:DD:8D:67:78:08:00:B6:B2:3F:AF:D9...
HTTP Headers
Developer Console
Email Infrastructure
Custom Mail Server
Score
70
DMARC Policy
Reject (Strictest)
MX Records (1)
Domain Information
htmlvalidator.com
Created
15.01.1997
Expires
14.01.2027
Last Updated
22.10.2025
Registrar
NameSilo, LLC
Privacy & Compliance
Mobile Compatibility
Viewport & Responsive Test
width=device-width, initial-scale=1- •Mobile compatibility recommendation preview...
Typography & Readability
arial
17px · LH 1.60
2.1x ratio · ✓ H1→H6
1.16:1 min contrast
System fonts
Heading Font
arial
Body Font
arial
Contrast Ratio
1.16:1
1 issueReading Comfort
~35 CPL
Narrow lines✅ Excellent readability: 17px body text is ideal for all devices.
✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).
❌ Very complex text: Flesch score 30/100. Consider shorter sentences and simpler words.
⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.2:1).
✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.
✅ Strong hierarchy: Headlines are 2.1x larger than body text.
Color Palette
9 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
3 Resources
Top Script Sources
Website Identity
CSS HTML Validator Pro
An HTML, CSS, accessibility, link, SEO, spelling, JavaScript, and PHP checker for Windows. A Mac and Linux command line tool is also available.
Social Profiles
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Historical Analysis & Change Tracking