computerhistory.org
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Hosting Provider
cloudflare.comIP Address
104.21.17.220
Server Location
🇨🇦 Toronto, Canada
ASN
AS13335
Organization
Cloudflare, Inc.
Server
Cloudflare
CDN
Cloudflare
WAF
Cloudflare
Nameservers
Performance
Page Speed
Image Optimization
Architecture Stack
Technology Stack
17 Technologies Detected
CSS Frameworks
1Fonts
1Tag Managers
1Marketing
1Advertising
1CDN
1Security
1SEO Analysis
Home - CHM
No description available for this page.
Recommended: 50-60 chars
Recommended: 120-160 chars
Issues (1)
- • Missing meta description - important for click-through rates
3 issues found
Upgrade to view detailsCrawlability
Type: index
14 URLs
3 rules
Sitemap reference found
Allows all crawlers
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Security Score
HTTPS
WAF
52d
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
06.01.2026
Valid Until
06.04.2026
OCSP Stapling
Enabled
Subject Alternative Names (2)
SHA-256 Fingerprint
22:65:F5:39:30:CA:A9:FC:EB:66:71:37:44:A4:F2:90:BD:13:59:76...
Top Recommendations
Security recommendation preview
HTTP Headers
Developer Console
Email Infrastructure
Microsoft 365
Score
95
DMARC Policy
None (Monitor Only)
MX Records (1)
Domain Information
computerhistory.org
Created
03.02.1998
Expires
02.02.2027
Last Updated
30.03.2025
Registrar
Cloudflare, Inc.
Privacy & Compliance
Cookiebot
GDPR Indicators
Typography & Readability
DIN_1451 LT W01 Engschrift + DIN W01 Regular
22px · LH 1.39
3.16x ratio
Contrast: undefined
3 fonts
Heading Font
DIN_1451 LT W01 Engschrift
Body Font
DIN W01 Regular
Contrast Ratio
--
Reading Comfort
~126 CPL
Needs attention✅ Excellent readability: 22px body text is ideal for all devices.
✅ Strong hierarchy: Headlines are 3.2x larger than body text.
❌ Very long lines: ~126 chars/line causes eye strain. Use max-width: 65ch.
⚠️ Cramped layout: 63 elements lack adequate spacing.
✅ Clean layout: Consistent left alignment throughout.
Business & Marketing Stack
8 Tools Detected
Advertising
Ad platforms and retargeting pixels
5
Categories
8
Total Tools
1
Enterprise
4
Mid-Market
Assessment: Sophisticated marketing and sales technology infrastructure
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Scripts & Styles
30 Resources
Top Script Sources
Website Identity
computerhistory.org
Social Profiles
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Historical Analysis & Change Tracking