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SECURITY SCORE
Certificate Information
Subject
CN=www.tropinst.med.uni-muenchen.de
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
November 01, 2025
Valid Until
January 30, 2026
75 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
40:C2:BA:23:5A:CB:4E:93:3C:47:D5:F9:7C:28:68:46:2D:1C:81:11:40:C2:4D:C9:FB:A8:EB:CD:AF:15:40:71
Alternative Names
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
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
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
- • 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
60 domains
koco19.com
www.koco19.com
coronatest-tropeninstitut.com
www.coronatest-tropeninstitut.com
coronatest-tropeninstitut.de
www.coronatest-tropeninstitut.de
coronatest-tropeninstitut.org
www.coronatest-tropeninstitut.org
covid19-impfstudien.de
www.covid19-impfstudien.de
ebv-studie.de
www.ebv-studie.de
impfstudien-lmu.com
www.impfstudien-lmu.com
impfstudien-lmu.de
www.impfstudien-lmu.de
impfstudien-lmu.org
www.impfstudien-lmu.org
impfstudien-tropeninstitut.com
www.impfstudien-tropeninstitut.com
impfstudien-tropeninstitut.de
www.impfstudien-tropeninstitut.de
impfstudien-tropeninstitut.org
www.impfstudien-tropeninstitut.org
infectionandimmunity.de
www.infectionandimmunity.de
koco19-muenchen.de
www.koco19-muenchen.de
koco19.de
survey.koco19.de
www.koco19.de
koco19muenchen.de
www.koco19muenchen.de
kocoimpf.com
www.kocoimpf.com
kocoimpf.de
www.kocoimpf.de
kocoimpf.info
www.kocoimpf.info
newmethodslab.de
www.newmethodslab.de
tropeninstitut-lmu-klinikum.de
www.tropeninstitut-lmu-klinikum.de
tropeninstitut-lmu-klinikum.eu
www.tropeninstitut-lmu-klinikum.eu
tropeninstitut-muenchen.com
www.tropeninstitut-muenchen.com
tropeninstitut-muenchen.de
www.tropeninstitut-muenchen.de
tropeninstitut-muenchen.eu
www.tropeninstitut-muenchen.eu
tropeninstitut-muenchen.net
www.tropeninstitut-muenchen.net
tropeninstitut-muenchen.org
www.tropeninstitut-muenchen.org
www.tropinst.med.uni-muenchen.de
www.xn--tropeninstitut-mnchen-oic.de
xn--tropeninstitut-mnchen-oic.de
www.xn--tropeninstitut-mnchen-oic.eu
xn--tropeninstitut-mnchen-oic.eu
Other domains in certificate