DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1
Let's Encrypt logo Let's Encrypt

Certificate Information

Subject
CN=bad-heizung-schwerte.de
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
March 28, 2026
Valid Until
June 26, 2026 43 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
87:C6:5C:AC:DA:C8:AC:BF:E8:0B:D1:55:BB:E9:63:E4:3E:04:7B:51:F9:EB:20:CA:D6:6A:53:72:95:8C:17:75
Alternative Names
87 domains

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Add X-Content-Type-Options: nosniff
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

CAA Records (Certificate Authority Authorization)

CAA Records
Not Configured (Any CA can issue certificates)
CAA Issues
  • • No CAA records configured - any CA can issue certificates
Recommendations
  • • Implement CAA records to restrict which CAs can issue certificates for your domain
  • • This adds an extra layer of security against unauthorized certificate issuance
  • • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
  • • Consider adding 'iodef' record to receive security incident reports

Subject Alternative Names

87 domains
rxsun.net *.rxsun.net

Other domains in certificate

aipromtengineer.com *.aipromtengineer.com
amateti.cz *.amateti.cz *.pornuj.amateti.cz
angelescenarriaga.es *.angelescenarriaga.es
bad-heizung-schwerte.de *.bad-heizung-schwerte.de
bermejo.net *.bermejo.net
brightspace.au *.brightspace.au
by25333.com *.by25333.com
calgonstore.com *.calgonstore.com
camerastores.com.au *.camerastores.com.au
coaldelivery.com *.coaldelivery.com *.ww35.coaldelivery.com
czechmassag.com *.czechmassag.com
divinetouchproject.com *.divinetouchproject.com
elected.au *.elected.au
handy-handys24.de *.handy-handys24.de
jgq.com.au *.jgq.com.au
localleaks.com.au *.localleaks.com.au
maceyjobs.com *.maceyjobs.com
mackinac2015.com *.mackinac2015.com
naija2movies.com *.naija2movies.com *.series.naija2movies.com
pantrymate.com.au *.pantrymate.com.au
perthmotel.com.au *.perthmotel.com.au
plussizeclothing.com.au *.plussizeclothing.com.au
proteinpowders.com.au *.proteinpowders.com.au
pubicmanscaping.com *.pubicmanscaping.com
rowingframe.com *.rowingframe.com
royalboyz.com *.royalboyz.com
rubuki.com *.rubuki.com
rwq.com.au *.rwq.com.au
saju90.com *.saju90.com
*.random.scstateparks.com scstateparks.com *.scstateparks.com
southernwhiskey.com.au *.southernwhiskey.com.au
svc3.com *.svc3.com
tacomakickboxingacademy.com *.tacomakickboxingacademy.com
teerstuhl.de *.teerstuhl.de
theclimbingtree.co.uk *.theclimbingtree.co.uk *.ww38.theclimbingtree.co.uk
thephysicsavairy.com *.thephysicsavairy.com
veryhardalgebra.com *.veryhardalgebra.com
worldtarhiphop.com *.worldtarhiphop.com
y6b.org *.y6b.org
yetcost.de *.yetcost.de