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SECURITY SCORE
Certificate Information
Subject
C=IT, ST=Lazio, O=ESA-ESRIN (European Space Agency Research Institute), CN=alexandergerst.esa.int
Issuer
C=GB, ST=Greater Manchester, L=Salford, O=COMODO CA Limited, CN=COMODO RSA Organization Validation Secure Server CA
Valid From
December 24, 2024
Valid Until
December 24, 2025
47 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
A1:A8:AE:CB:CE:DF:8D:32:EA:13:09:E8:39:0D:36:BE:DC:E3:61:2F:A6:C2:90:F3:B8:26:96:9C:7A:94:F5:65
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
Present
max-age=604800
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • 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
73 domains
esa.int
alexandergerst.esa.int
andreasmogensen.esa.int
ariane6.esa.int
astronauts.esa.int
avamposto42.esa.int
b14booking.esa.int
blogs.esa.int
bookdiscoveresalive.esa.int
brand.esa.int
careers.esa.int
comms-exhibitionmodels.esa.int
dgcbooking.esa.int
discover.esa.int
dlmultimedia.esa.int
download.esa.int
eo4sd.esa.int
esait.esa.int
esamultimedia.esa.int
esatv.esa.int
esawebtv.esa.int
kids.esa.int
lucaparmitano.esa.int
m.esa.int
marcosieber.esa.int
matthiasmaurer.esa.int
multimedia-delivery.esa.int
multimedia.esa.int
open.esa.int
outpost42.esa.int
pabloalvarezfernandez.esa.int
paolonespoli.esa.int
photolibrary.esa.int
presence.esa.int
raphaelliegeois.esa.int
rosemarycoogan.esa.int
rosetta.esa.int
samanthacristoforetti.esa.int
sophieadenot.esa.int
spaceinimages.esa.int
spaceinvideos.esa.int
stockup.esa.int
tedx.esa.int
television.esa.int
thomaspesquet.esa.int
timpeake.esa.int
tools.esa.int
tvdownload.esa.int
vision.esa.int
watch.esa.int
www-analytics.esa.int
esa-photolibrary.com
www.esa-photolibrary.com
esa.be
www.esa.be
esa.de
kids.esa.de
www.esa.de
esa.es
kids.esa.es
www.esa.es
esa.eu
www.esa.eu
esa.fr
kids.esa.fr
www.esa.fr
esa.it
www.esa.it
esa.nl
kids.esa.nl
www.esa.nl
esa.org.pt
www.esa.org.pt
Other domains in certificate