heavens-above.com
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Hosting Provider
IP Address
129.247.31.61
Server Location
🇩🇪 Cologne, Germany
ASN
AS680
Organization
Deutsches Zentrum fuer Luft- und Raumfahrt e.V.
Server
Microsoft IIS
Nameservers
Performance
Page Speed
Architecture Stack
Technology Stack
11 Technologies Detected
Advertising
4Meta Frameworks
1Libraries
1CSS Frameworks
1Icon Libraries
1Fonts
1Payments
1Web Servers
1SEO Analysis
Heavens-Above
Satellite predictions and other astronomical data customised for your location.
Recommended: 50-60 chars
Recommended: 120-160 chars
Issues (1)
- • Missing viewport meta tag - page may not be mobile-friendly
9 issues found
Upgrade to view detailsCrawlability
12 rules
Allows all crawlers
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Security Score
HTTPS
No WAF
286d
Certificate Details
Type
Domain Validated (DV)
Certificate Authority
Sectigo Limited
Key Algorithm
RSA (2048 bit)
Signature
SHA-256 with RSA
TLS Version
TLSv1.2
HTTP Protocol
HTTP/2
Valid From
01.11.2025
Valid Until
02.12.2026
OCSP Stapling
Enabled
Subject Alternative Names (2)
SHA-256 Fingerprint
25:ED:54:07:AC:0E:2E:C7:A0:F0:02:BF:DD:C1:79:BB:75:0D:D2:F9...
Top Recommendations
Security recommendation preview
HTTP Headers
Developer Console
Email Infrastructure
Custom Mail Server
Score
50
MX Records (1)
Domain Information
heavens-above.com
Created
22.04.1999
Expires
22.04.2033
Last Updated
10.07.2023
Registrar
Network Solutions, LLC
Privacy & Compliance
Quantcast Choice
GDPR Indicators
Typography & Readability
Open Sans + verdana
12px · LH --
1.46x ratio
Contrast: undefined
2 fonts
Heading Font
Open Sans
Body Font
verdana
Contrast Ratio
--
Reading Comfort
~65 CPL
Optimal (45–75)❌ Critical: 12px body text is too small. Increase to at least 14px.
⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.
✅ Good performance: Using 2 font families keeps load times fast.
✅ Smart font loading: Using font-display: swap prevents invisible text during load.
✅ Optimal line length: ~65 characters per line is comfortable to read.
⚠️ Cramped layout: 52 elements lack adequate spacing.
Business & Marketing Stack
4 Tools Detected
4
Categories
4
Total Tools
1
Enterprise
1
Mid-Market
Assessment: Sophisticated marketing and sales technology infrastructure
Ad Networks
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Scripts & Styles
15 Resources
Top Script Sources
Website Identity
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Historical Analysis & Change Tracking